This manual includes:
Repair
Fault Codes
Electrical and
Hydraulic Schematics
For detailed maintenance
procedures, refer to the
appropriate Maintenance
Manual for your machine.
Part No. 1268557GT
Rev A4
October 2018
Z13513-
procedures
Page 2
Service and Repair ManualOctober 2018
Introduction
Introducti on Introducti on
Important
Read, understand and obey the safety rules and
operating instructions in the appropriate Operator's
Manual on your machine before attempting any
procedure.
This manual provides troubleshooting and repair
procedures for qualified service professionals.
Basic mechanical, hydraulic and electrical skills are
required to perform most procedures. However,
several procedures require specialized skills, tools,
lifting equipment and a suitable workshop. In these
instances, we strongly recommend that
maintenance and repair be performed at an
authorized Genie dealer service center.
Technical Publications
Genie has endeavored to deliver the highest
degree of accuracy possible. However, continuous
improvement of our products is a Genie policy.
Therefore, product specifications are subject to
change without notice.
Readers are encouraged to notify Genie of errors
and send in suggestions for improvement. All
communications will be carefully considered for
future printings of this and all other manuals.
Section – Repair Procedure, 4-2
Section – Fault Codes, All charts
Section – Schematics, Legends and schematics
Part No. 1268557GT Z®-135/70 iii
Click on any content or procedure in the Table of Contents to view
Electronic Version
the update.
Page 4
Service and Repair Manual October 2018
Introduction
Serial Number Legend
1 Model
2 Model year
3 Sequence number
4 Serial label (located under cover)
iv Z®-135/70Part No. 1268557GT
5 Serial number (stamped on chassis)
Page 5
October 2018 Service and Repair Manual
Safety Rules
Section 1 Safety Rules
Danger
Failure to obey the instructions and safety rules in
this manual and the appropriate Operator's Manual
on your machine will result in death or serious
injury.
Many of the hazards identified in the operator's
manual are also safety hazards when maintenance
and repair procedures are performed.
Do Not Perform Maintenance
Unless:
RYou are trained and qualified to perform
maintenance on this machine.
RYou read, understand and obey:
• manufacturer's instructions and safety rules
• employer's safety rules and worksite
regulations
• applicable governmental regulations
RYou ha ve the appr o priate tools, lifting
equipment and a suitable workshop.
Part No. 1268557GT Z®-135/70 v
Page 6
Service and Repair Manual October 2018
R
manual and the decals on the machine,
use signal words to identify the following:
Safety alert symbol—used to alert
personnel to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to
Indicates a imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided,
could result in death or serious
injury.
Indicates a potentially hazardous
situation which, if not avoided,
may cause minor or moderate
injury.
Indicates a potentially hazardous
situation which, if not avoided,
may result in property damage.
Be sure to wear protective eye wear and
other
warrants it.
Be aware of potential crushing hazards
such as moving parts, free swinging or
unsecured components when lifting or
placing loads. Always wear approved
steel
Be sure to keep sparks, flames and lighted
tobacco away from flammable and
combustible
and engine fuels. Always have an
approved fire extinguisher within easy
reach.
Be sure that all tools and working areas
are properly maintained and ready for
use. Keep work surfaces clean and free of
debris that could get in
components and cause damage.
Be sure any forklift, overhead crane or
other lifting or supporting device is fully
capable of supporting and stabilizing the
weight to be lifted. Use only chains or
straps that are in good condition and of
ample
Be sure that fasteners intended for one
time use (i.e., cotter pins and self
nuts) are not reused. These components
may fail if they are used a second time.
Be sure to properly dispose of old oil or
other fluids. Use an approved
Please be environmentally safe.
Be sure that your workshop or work area
is properly ventilated and well lit.
Safety Rules
Personal Safety
Any person working on or around a machine must
be aware of all known safety hazards. Personal
safety and the continued safe operation of the
machine should be your top priority.
ead each procedure thoroughly. This
avoid possible injury or death.
Workplace Safety
Any person working on or around a machine must
be aware of all known safety hazards. Personal
safety and the continued safe operation of the
machine should be your top priority.
materials like battery gases
to machine
capacity.
protective clothing if the situation
-toed shoes.
-locking
container.
vi Z®-135/70Part No. 1268557GT
Page 7
October 2018
Table of Contents
Introduction Introduction ........................................................................................................... ii
Important Information ............................................................................................. ii
Find a Manual for this Model .................................................................................. ii
Serial Number Legend .......................................................................................... iv
Section 1 Safety Rules .......................................................................................................... v
General Safety Rules ............................................................................................. v
Hydraulic Schematic (before serial number 180, except for serial number 102)224
Hydraulic Schematic (serial number 102 and from serial number 180 to 534).. 225
Hydraulic Schematic (from serial number 535) .................................................. 227
Drive hub oil type: SAE 9
API service classification GL5
Drive speed, maximum
Stowed position, high speed
ph
m/h
ec
ec
Raised or extended
ph
m/h
ec
ec
Primary and Secondary booms
raised, and
extended
ph
m/h
ec
ec
Braking distance, maximum
High range on paved surface
t
m
Gradeability
See Operator's
Manual
Boom function speeds, maximum from platform
controls
Jib boom
econds
Jib boom extend/retract
econds
Primary boom up/down
-
econds
Primary boom extend/retract
econds
Secondary boom up/down
econds
Secondary boom extend/retract
econds
Turntable rotate, 360°
fully stowed
econds
Turntable rotate, 360°jib or
primary booms extended
econds
Turntable rotate, 360°jib and
primary booms extended
econds
Specifications
Section 2 Specificati ons
Machine Specificati ons
-filled
46.5 i
22.5 i
13 i
10 @ 3/4 -
420 ft-
320 ft-
40 g
65 g
123 g
47 f
40 f
0 multipurpose hypoid gear oil
815 l
370 k
118.1 c
57.2 c
151.4 l
246 l
466 l
1390 c
1183 c
33 c
Performance Specifications
2.8 m
4.5 k
40 ft / 9.7 s
12.2 m / 9.7 s
0.7 m
1.1 k
40 ft / 40 s
12.2 m / 40 s
0.4 m
Primary and Jib
12.2 m / 68.5 s
3 to 6 f
up/down 38 to 43 s
27 to 38 s
60° to +70°
35 to 48 s
80 to 95 s
110 to 125 s
88 to 98 s
88 to 92 s
160 to 180 s
280 to 350 s
For operational specifications, refer to the
Operator's Manual.
0.6 k
40 ft / 68.5 s
1 to 2
Part No. 1268557GT Z®-135/70 1
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Page 16
Service and Repair ManualOctober 2018
Hydraulic Fluid Specifications
Genie specifications require
designed to give maximum protection to hydraulic
systems, have the ability to perform over a wide
temperature range, and the viscosity index should
exceed 140. They should provide excellent antiwear,
oxidation prevention, corrosio n
conditioning, and foam and aeration suppression
properties.
Cleanliness level,
minimum
ISO 15/13
Water content,
maximum
pm
Recommended Hydraulic Fluid
Hydraulic oil type
Chevron Rando HD Premium
Viscosity grade
32
Viscosity
200
Optional Hydraulic Fluids
Mineral based Shell Tellus S2 V 32
Shell Tellus S2 V 46
Shell Tellus S4 VX 32 Shell
Shell Donax TG (Dexron III)
Chevron 5606A
Biodegradable
46
Fire resistant
5046
Optional fluids may not have the
same hydraulic lifespan and
may result in component
dama
Do not top off with incompatible
hydraulic fluids. Hydraulic fluids
may be incompatible due to the
differences in base additive
chemistry. When incompatible
fluids are mixed, insoluble
materials may form and deposit
in the hydraulic system,
plugging hydraulic lines, filt
control valves and may result in
component damage.
Specifications
Hydraulic Oil Specifica t ions
hydraulic oils which are
inhibition, seal
index
250 p
ers,
Note: Do not operate the machine when the
ambient air temperature is consistently above
120°F / 49°C.
Hydraulic Fluid Tempera t ure
Range
Petro Canada Environ MV
UCON Hydrolube HP-
Note: Genie specifications require additional
equipment and special installation instructions for
the approved optional fluids. Consult Genie Product
Support before use.
ge.
Note: Extended machine operation can cause the
hydraulic fluid temperature to increase beyond it's
maximum allowable range. If the hydraulic fluid
temperature consistently exceeds 200°F / 90°C an
optional oil cooler may be required.
Note: A hydraulic oil heating system is
recommended when the ambient temperature is
consistently below 0°F / -18°C.
Note: Do not operate the machine when the
ambient temperature is below -20°F / -29 °C w ith
Rando HD Premium MV.
104°F / 40°C
-40°F / -40°C
-81°F / -
Note: Use of Chevron 5606A hydraulic fluid, or
equivalent, is required when ambient temperatures
are consistently below 0°F / -17°C unless an oil
heating system is used.
Continued use of Chevron
5606A hydraulic fluid, or
equivalent, when ambient
temperatures are consistently
above 32°F / 0°C may result in
component damage
System relief valve pressure, maximum
(measured at test port)
si
ar
Primary boom extend
(measured at ptest port)
si
ar
Jib and platform manifolds
Platform rotate and platform level flow
regulator
pm
0.76 L/min
Jib manifold flow regulator
pm
7.6 L/min
Steer/Axle Manifold
Axle extend relief pressure
si
ar
Traction Manifold
Hot oil relief pressure
si
ar
Hydraulic Filters
High pressure filter:
Beta 3 ≥ 200
High pressure filter bypass pressure
si
ar
Medium pressure filter
Beta 3 ≥ 200
Medium pressure filter bypass
si
ar
Hydraulic tank return filter
icron
si /
ar
bypass
Drive motor case drain return filter
Beta 10 ≥ 2
Specifications
Hydraulic Component
Specifications
-directional varia ble displacement piston pump
2.8 c
0 rpm 28.5 g
3625 p
0.85 c
0 rpm 9 g
0 rpm
0 to 2.75 c
0 rpm 0 to 28 g
2900 p
2900 p
pressure 250 p
46 c
250 b
13.9 c
315 p
i21.7 b
0 to 45 c
0 to 106 L/min
200 b
200 b
17 b
0.15 c
2.47 c
relief pressure
2 g
2400 p
250 p
102 p
pressure 51 p
10 m
3100 p
213.7 b
2600 p
179 b
0.2 g
165 b
17.2 b
7 b
3.5 b
with 25 p
1.7 b
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 5
Page 20
Service and Repair Manual October 2018
Brakes
Brake relief pressure
si
ar
Drive Motors
(before serial number 180)
(see note below)
Displacement per revolution, high
speed
u in
c
Displacement per revolution, low
speed (square end)
u in
c
Displacement per revolution, low
speed (circle end)
u in
c
Drive Motors
(after serial number 179)
Manifold Component Specifications
Plug torque
SAE No. 2
SAE No. 4
lbs / 13 Nm
SAE No. 6
lbs / 19 Nm
SAE No. 8
lbs / 51 Nm
SAE No. 10
lbs / 55 Nm
SAE No. 12
lbs / 76 Nm
Valve coil resistance specifications
Proportional solenoid valve
(schematic items N, P, R, T, V)
o
5.5Ω
Solenoid valve,
(schematic item B)
Solenoid valve,
(schematic items BN, BO, BP, BQ)
Solenoid valve,
(schematic item AH)
o 10Ω
Proportional solenoid valve,
(schematic
o 10Ω
Solenoid Valve,
(schematic items F and AD)
o
7.5Ω
Solenoid Valve,
(schematic items AE, AF)
o 10Ω
Solenoid valve,
(schematic items H, J)
o
5.5Ω
Solenoid Valve,
(schematic items C, D, G, I, K, AX , AY, BU, BT)
o
9.5Ω
Solenoid valve,
(schematic item A)
o
5.5Ω
Specifications
190 p
13 b
0.8 c
13.3 c
2.7 c
45 c
1.5 c
25 c
Displacement per revolution, high
speed
Displacement per revolution, low
speed (square end)
Displacement per revolution, low
speed (circle end)
0.8 cu in
13.3 cc
2.7 cu in
45 cc
1.5 cu in
25 cc
Note: Serial number 102 is equipped with drive
motors equal to those used on machines after serial
number 179.
36 in-lbs / 4 Nm
10 ft 14 ft 38 ft-
41 ft 56 ft-
3.5 t
3 position 4 way
4 to 6Ω
3 position 4 way
7 to 9Ω
3 position 4 way
8 t
3 position 4 way
8 t
items Y, AI)
2 position 3 way
5.5 t
2 position 3 way
8 t
2 position 2 way
3.5 t
2 position 3 way
7.5 t
2 position 2 way
3.5 t
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
6 Z®-135/70 Part No. 1268557GT
Page 21
October 2018 Service and Repair Manual
Displacement
u. in
Number of cylinders
4
Bore and Stroke
nches
m
Horsepower net intermittent
Continuous @ 250
Net
W
W
Firing order
2
Low idle
pm
383 Hz
High idle
pm
599 Hz
Compression ratio
17.5:1
Compression pressure pressure (psi or bar) of the
lowest cylinder must be at least 75% of the
cylinder
Governor
centrifugal
mechanical
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
-
30
(synthetic)
-
40
Above 23°F /
50
Unit ships with 15W
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the Engine
Operator Manual for your engine.
Oil temperature switch
Installation torque
lbs
24 Nm
Temperature switch point
275°F
135°C
Oil Pressure switch
Installation torque
lbs
24 Nm
Pressure switch point
si
ar
Specifications
Deutz BF4L 2011 Engine
0 rpm
intermittent @ 2500 rpm
0.012 i
0.020 i
3.7 x 4.409 i
189.6 c
3.1 liters
94 x 112 m
69 hp / 51 k
73 hp / 54 k
1 - 3 - 4 -
1500 r
2350 r
highest
0.3 m
0.5 m
0 rpm) 40 to 60 p
2.8 to 4.1 b
11 q
10.4 l
22°F to 86°F / -30°C to 30°C 5W-
4°F to 90°F / -20°C to 32°C 10W-
-5°C 20W-
-40. Extreme operating
8 - 18 ft-
11 -
8 - 18 ft-
11 -
7 p
0.48 b
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 7
Page 22
Service and Repair Manual October 2018
Fuel injection system
Motorpal
Injection pump pressure,
maximum
si
ar
Injector opening pressure
si
ar
Fuel requirement
For fuel requirements, refer to the engine Operator
Manual for your engine.
Starter motor
Current draw, normal load
200A
Cranking speed
pm
Battery
Type
6V DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve capacity @ 25A rate
inutes
Battery
Type 12V DC, Group 31
Quantity
1
Battery capacity, maximum
1000A
Reserve
200 Minutes
Alternator output
80A @ 14V DC
Fan belt deflection
nch
m
Specifications
Deutz BF4L 2011 cont.
15,000 p
3046 p
140 -
200 - 250 r
– Auxiliary power units
745 m
– Engine starting and control system
1034 b
210 b
capacity @ 25A rate
3/8 to 1/2 i
9.5 to 12.5 m
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
8 Z®-135/70 Part No. 1268557GT
Page 23
October 2018 Service and Repair Manual
Displacement
u. in
iters
Number of cylinders
4
Bore and Stroke
nches
m
Horsepower net intermittent @
240
W
Induction system
turbocharged
Firing order
2
Low idle
pm
383 Hz
High idle
pm
599 Hz
Compression ratio
17.5:1
Compression pressure pressure (psi or bar) of the
lowest cylinder must be at least 75% of the highest
cylinder
Governor
centrifugal
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
-
30
(synthetic)
-
40
Above 5°F /
40
Unit ships with 15W
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the Engine
Operator Manual for your engine.
Oil temperature switch
Installation torque
lbs
24 Nm
Temperature switch point
275°F
135°C
Oil Pressure switch
Installation torque
lbs
24 Nm
Pressure switch point
si
ar
Specifications
Deutz TD2011L04i Engine
0 rpm
0.012 i
0.020 i
3.78 x 4.92 i
220.9 c
3.62 l
96 x 125 m
74 hp / 55 k
1 - 3 - 4 -
1500 r
2350 r
mechanical
0.3 m
0.5 m
0 rpm) 40 to 60 p
2.8 to 4.1 b
12.8 q
12.1 l
22°F to 86°F / -30°C to 30°C 5W-
4°F to 104°F / -20°C to 40°C 10W-
-15°C 15W-
-40. Extreme operating
8 - 18 ft-
11 -
8 - 18 ft-
11 -
22 p
1.5 b
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 9
Page 24
Service and Repair Manual October 2018
Fuel injection system
Motorpal
Injection pump pressure,
maximum
si
ar
Injector
si
ar
Fuel requirement
For fuel requirements, refer to the engine Operator
Manual for your engine.
Starter motor
Current draw, normal load
200A
Cranking speed
pm
Battery
Type
DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve capacity @ 25A rate
inutes
Battery
Type 12V DC, Group 31
Quantity
1
Battery capacity, maximum
1000A
Reserve capacity @ 25A rate
200 Minutes
Alternator
80A @ 14V DC
Fan belt deflection
nch
m
Specifications
Deutz TD2011L04i cont.
15,000 p
opening pressure 3046 p
140 -
250 - 350 r
– Auxiliary power units
6V
745 m
– Engine starting and control system
1034 b
210 b
output
3/8 to 1/2 i
9.5 to 12.5 m
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
10 Z®-135/70 Part No. 1268557GT
Page 25
October 2018 Service and Repair Manual
Displacement
u. in
iters
Number of cylinders
4
Bore and Stroke
nches
m
Horsepower net intermittent @
220
W
Firing order
2
Low idle
pm
368 Hz
High idle
pm
599 Hz
Compression ratio
18:1
Compression pressure pressure (psi or bar) of the
lowest cylinder must be at least 75% of the highest
cylinder
Governor
centrifugal mechanical
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
Below 68°F / 20°C
30
-
40
Above 15°F /
40
Unit ships with
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the Engine
Operator Manual for your engine.
Specifications
Cummins B4.5L Engine
0 rpm
0.010 i
0.020 i
4.02 x 5.42 i
275 c
4.5 l
102 x 138 m
80 hp / 60 k
1 - 3 - 4 -
1300 r
2350 r
0.254 m
0.508 m
0 rpm) 50 p
3.45 b
9.5 q
9 l
5W-
10°F to 68°F / -23°C to 20°C 10W-
-9°C 15W-
15W-40. Extreme operating
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 11
Page 26
Service and Repair Manual October 2018
Fuel injection system
Delphi
Injection pump pressure,
maximum
si
ar
Injector opening pressure
si
ar
Fuel requirement
For fuel requirements, refer to the
Manual for your engine.
Engine coolant
Capacity
uarts
iters
Coolant temperature switch
Installation torque
lbs
24 Nm
Temperature switch point
230°F
110°C
Starter motor
Current draw, no load 125A
Brush
n
m
Battery
Type
6V DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve capacity @ 25A rate
inutes
Battery
Type 12V DC, Group 31
Quantity
1
Battery
1000A
Reserve capacity @ 25A rate
200 Minutes
Alternator output
95A @ 12V DC
Fan belt deflection
nch
m
Specifications
Cummins B4.5L cont.
3480 to 3680 p
3480 p
engine Operator
17 q
8 - 18 ft-
240 to 254 b
240 b
16 l
11 -
length, minimum 0.72 i
18.3 m
– Auxiliary power units
745 m
– Engine starting and control system
capacity, maximum
3/8 to 1/2 i
9.5 to 12.5 m
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
12 Z®-135/70 Part No. 1268557GT
Page 27
October 2018 Service and Repair Manual
Displacement
u. in
iters
Number of cylinders
4
Bore and Stroke
nches
m
Horsepower net intermittent @
220
W
Firing order
3
Low idle
pm
368 Hz
High idle
pm
599 Hz
Compression ratio
17:1
Compression pressure pressure (psi or bar) of the
lowest cylinder must be at least 75% of the highest
cylinder
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
Below 68°F / 20°C
30
-
40
Above 14°F /
40
Unit ships with 15W
temperatures may require the use of alternative
engine oils. For oil requirements, refer to the Engine
Operator Manual for your engine.
Specifications
Cummins B3.3T Engine
0 rpm
0.014 i
0.020 i
3.74 x 4.53 i
199 c
3.26 l
95 x 115 m
80 hp / 60 k
1 - 2 - 4 -
1300 r
2350 r
0.35 m
0.508 m
0 rpm) 31 p
72 b
9 q
8.5 l
5W-
10°F to 68°F / -23°C to 20°C 10W-
-10°C 15W-
-40. Extreme operating
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 13
Page 28
Service and Repair Manual October 2018
Fuel injection system
Zexel
Injection pump pressure,
maximum
si
ar
Fuel requirement
For fuel requirements, refer to the engine
Manual for your engine.
Engine coolant
Capacity
uarts
iters
Starter motor
Current draw, maximum load
550A
Cranking speed
pm
Battery
Type
6V DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve
inutes
Battery
Type 12V DC, Group 31
Quantity
1
Battery capacity, maximum
1000A
Reserve capacity @ 25A rate
200 Minutes
Alternator output
120A @ 12V DC
Fan belt deflection
nch
m
Specifications
Cummins B3.3T cont.
12,000 p
9.1 q
130 r
– Auxiliary power units
capacity @ 25A rate 745 m
– Engine starting and control system
827 b
Operator
8.6 l
3/8 to 1/2 i
9.5 to 12.5 m
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
14 Z®-135/70 Part No. 1268557GT
Page 29
October 2018 Service and Repair Manual
Displacement
u. in
iters
Number of
4
Bore and Stroke
nches
m
Horsepower net intermittent
Gross intermittent @ 240
Net intermittent @ 240
W
W
Firing order
2
Low idle
pm
312 Hz
High idle
pm
572 Hz
Compression ratio
18.2:1
Compression pressure pressure (psi or bar) of the
lowest cylinder must be at least 75% of the highest
cylinder
Governor
centrifugal
mechanical
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
Below 68°F / 20°C
20
10°F to 104°F /
40
Above 14°F /
40
Unit ships with 15W
temperatures may require the use of alternative engine
oils. For oil requirements, refer to the Engine Operator
Manual for your engine.
Oil Pressure switch
Installation torque
lbs
24 Nm
Pressure
si
ar
Fuel injection system
Injection pump make
Bosch
Injector opening pressure
si
ar
Fuel requirement
For fuel requirements, refer to the engine Operator
Manual for your engine.
Specifications
Perkins 1104C-44
cylinders
0 rpm
0 rpm
0.008 i
0.018 i
268.5 c
4.4 l
4.13 x 5 i
105 x 127 m
86 hp / 64 k
83 hp / 62 k
1 - 3 - 4 -
1300 r
2350 r
0.2 m
0.45 m
0 rpm) 40 to 60 p
2.8 to 4.1 b
7.3 q
6.9 l
5W-
-12°C to 40°C 10W-
-10°C 15W-
-40. Extreme operating
8 - 18 ft-
11 -
switch point 8 p
0.55 b
2200 p
152 b
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 15
Page 30
Service and Repair Manual October 2018
Starter motor
Current draw, normal load
200A
Cranking speed
pm
Battery
Type
6V DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve capacity @ 25A rate
inutes
Battery – Engine starting and control system
Type 12V DC, Group 31
Quantity
1
Battery capacity, maximum
1000A
Reserve capacity @ 25A rate
200 Minutes
Engine
Capacity
uarts
iters
Coolant temperature switch
Installation torque
lbs
24 Nm
Temperature switch point
230°F
110°C
Alternator output
85A @ 13.8V DC
Fan belt deflection
nch
m
Specifications
Perkins 1104C-44 cont.
140 -
200 - 250 r
– Auxiliary power units
745 m
coolant
14 q
13.2 l
8 - 18 ft-
11 -
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
16 Z®-135/70 Part No. 1268557GT
3/8 i
9.5 m
Page 31
October 2018 Service and Repair Manual
Displacement
u. in
iters
Number of cylinders
4
Bore and Stroke
nches
m
Horsepower net intermittent
Gross intermittent @ 220
W
Induction system
turbocharged
Firing order
2
Low idle
pm
316 Hz
High idle
pm
572 Hz
Compression ratio
19.5:1
Compression pressure pressure
lowest cylinder must be at least 75% of the highest
cylinder
Governor
centrifugal
mechanical
Valve Clearance, cold
Intake
n
m
Exhaust
n
m
Lubrication system
Oil pressure, hot (@ 200
si
ar
Oil capacity (including filter)
uarts
iters
Oil viscosity requirements
Below 86°F / 30°C
20
-
30
Above 14°F /
40
Unit ships with 15W
temperatures may
oils. For oil requirements, refer to the Engine Operator
Manual for your engine.
Oil Pressure switch
Installation torque
lbs
24 Nm
Pressure switch point
si
ar
Fuel injection system
Injection pump make
Bosch
Injector opening pressure
si
ar
Fuel requirement
For fuel requirements, refer to the engine Operator
Manual for your engine.
Specifications
Perkins 804D-33T
0 rpm
0.0098 i
0.0098 i
3.7 x 4.72 i
(psi or bar) of the
203 c
3.33 l
94 x 120 m
83 hp / 62 k
1 - 3 - 4 -
1300 r
2350 r
0.25 m
0.25 m
0 rpm) 40 to 60 p
2.8 to 4.1 b
10.6 q
10 l
5W-
4°F to 104°F / -20°C to 40°C 10W-
-10°C 15W-
-40. Extreme operating
require the use of alternative engine
8 - 18 ft-
11 -
8 p
0.55 b
2200 p
152 b
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
Part No. 1268557GT Z®-135/70 17
Page 32
Service and Repair Manual October 2018
Starter motor
Current draw, normal load
200A
Cranking speed
pm
Battery
Type
6V DC
Quantity
2
Battery capacity, maximum
285 AH
Reserve capacity @
inutes
Battery – Engine starting and control system
Type 12V DC, Group 31
Quantity
1
Battery capacity, maximum
1000A
Reserve capacity @ 25A rate
200 Minutes
Engine coolant
Capacity
uarts
iters
Coolant temperature switch
Installation torque
lbs
24 Nm
Temperature switch point
230°F
110°C
Alternator output
90A @ 12V DC
Fan belt deflection
nch
m
Specifications
Perkins 804D-33T cont.
250 r
– Auxiliary power units
25A rate 745 m
12.5 q
11.8 l
8 - 18 ft-
11 -
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or obligation.
18 Z®-135/70 Part No. 1268557GT
3/8 to 1/2 i
9.5 to 12.5 m
Page 33
October 2018 Service and Repair Manual
Platform Rotator
1
lbs
651 Nm
3/8
lbs
60 Nm
Turntable rotate assembly
Rotate bearing
(3/4
lbs
434 Nm
Rotate bearing mounting bolts, lubricated
(5/8
lbs
244 Nm
Rotate drive hub mounting bolts, lubricated
lbs
108 Nm
Drive motor mounting bolts, dry
lbs
102 Nm
Drive
lbs
76 Nm
Backlash plate mounting bolts, lubricated
lbs
434 Nm
Drive motors and hubs
Drive hub mounting bolts, lubricated
lbs
217 Nm
Drive motor mounting bolts, dry
lbs
102 Nm
Drive motor
lbs
76 Nm
Engine vibration isolators
Mounting bolts, dry
lbs
81 Nm
Mounting bolts, lubricated
lbs
61 Nm
Specifications
Machine Torque Specifications
-8 center bolt, GR 5 480 ft-
-16 bolts, GR 8 44 ft-
mounting bolts, lubricated
-10 SHC)
-11 SHC)
75 ft-
motor mounting bolts, lubricated 56 ft-
320 ft-
180 ft-
80 ft-
320 ft-
180 ft-
75 ft-
mounting bolts, lubricated 56 ft-
60 ft-
45 ft-
Continuous improvement of our produ cts is a
Genie policy. Product specifications are
subject to change without notice or ob ligation.
Part No. 1268557GT Z®-135/70 19
Page 34
Service and Repair Manual October 2018
Specifications
Hydraulic Hose and Fitting
Torque Specifications
Your machine is equipped with Parker Seal-Lok™
ORFS or 37° JIC fittings and hose ends. Genie
specifications require that fittings and hose ends be
torqued to specification when they are removed and
installed or when new hoses or fittings are installed.
Seal-Lok™ Fittings
(hose end - ORFS)
SAE Dash Size Torque
-4 10 ft-lbs / 13.6 Nm
-6 30 ft-lbs / 40.7 Nm
-8 40 ft-lbs / 54.2 Nm
-10 60 ft-lbs / 81.3 Nm
-12 85 ft-lbs / 115 Nm
-16 110 ft-lbs / 150 Nm
-20 140 ft-lbs / 190 Nm
-24 180 ft-lbs / 245 Nm
SAE O-ring Boss Port
(tube fitting - installed into Aluminum)
(all types)
SAE Dash Size Torque
-4 14 ft-lbs / 19 Nm
-6 23 ft-lbs / 31.2 Nm
-8 36 ft-lbs / 54.2 Nm
-10 62 ft-lbs / 84 Nm
-12 84 ft-lbs / 114 Nm
-16 125 ft-lbs / 169.5 Nm
-20 151 ft-lbs / 204.7 Nm
-24 184 ft-lbs / 249.5 Nm
JIC 37° Fittings
(swivel nut or hose connection)
SAE Dash Size Thread Size Flats
-4 7/16-20 2
-6 9/16-18 1 ¼
-8 3/4-16 1
-10 7/8-14 1
-12 1 1/16-12 1
-16 1 5/16-12 1
-20 1 5/8-12 1
-24 1 7/8-12 1
Adjustable Fitting Non-adjustable fitting
1 jam nut
SAE O-ring Boss Port
(tube fitting - installed into Steel)
SAE Dash Size Torque
-4 ORFS / 37° (Adj)
ORFS (Non-adj)
37° (Non-adj)
-6 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-8 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-10 ORFS (Adj / Non-adj)
37° (Adj / Non-adj)
-12 (All types) 135 ft-lbs / 183 Nm
-16 (All types) 200 ft-lbs / 271.2 Nm
-20 (All types) 250 ft-lbs / 339 Nm
-24 (All types) 305 ft-lbs / 413.5 Nm
15 ft-lbs / 20.3 Nm
26 ft-lbs / 35.3 Nm
22 ft-lbs / 30 Nm
35 ft-lbs / 47.5 Nm
29 ft-lbs / 39.3 Nm
60 ft-lbs / 81.3 Nm
52 ft-lbs / 70.5 Nm
100 ft-lbs / 135.6 Nm
85 ft-lbs / 115.3 Nm
20 Z®-135/70 Part No. 1268557GT
Page 35
October 2018 Service and Repair Manual
Specifications
Torque Procedure
Seal-Lok™ fittings
1 Replace the O-ring. The O-ring must be
replaced anytime the seal has been broken.
The O-ring cannot be re-used if the fitting or
hose end has been tightened beyond finger
tight.
Note: The O-ring in Parker Seal Lok™ fittings and
hose end are custom-size O-rings. They are not
standard size O-rings. T he y are avai lable in the
O-ring field service kit (Genie part number 49612).
2 Lubricate the O-ring before installation.
3 Be sure the O-ring face seal is seated and
retained properly.
4 Position the tube and nut squarely on the face
seal end of the fitting, and tighten the nut finger
tight.
5 Tighten the nut or fitting to the appropriate
torque. Refer to the appropriate torque chart in
this section.
6 Operate all machine functions and inspect the
hose, fittings and related components to
confirm there are no leaks.
JIC 37° fittings
1 Align the tube flare (hex nut) against the nose
of the fitting body (body hex fitting) and tighten
the hex nut to the body hex fitting to hand tight,
approximately 30 in-lbs / 3.4 Nm.
2 Using a permanent ink marker, make a
reference mark on one the flats of the hex nut
and continue the mark onto the body of the hex
fitting. Refer to Illustration 1.
Illustration 1
1 hex nut
2 reference mark
3 body hex fitting
Part No. 1268557GT Z®-135/70 21
Page 36
Service and Repair Manual October 2018
Specifications
3 Working clockwise on the body hex fitting,
make a second mark with a permanent ink
marker to indicate the proper tightening
position. Refer to Illustration 2.
Note: Use the JIC 37° Fitting table in this section to
determine the correct number of flats, for the proper
tightening position.
Note: The marks indicate the correct tightening
positions have been determined. Use the second
mark on the body hex fitting to properly tighten the
joint after it has been loosened.
Illustration 2
1 body hex fitting
2 reference mark
3 second mark
4 Tighten the hex nut until the mark on the hex
nut is aligned with the second mark on the
body hex fitting.
5 Operate all machine functions and inspect the
hose, fittings and related components to
confirm there are no leaks.
22 Z®-135/70 Part No. 1268557GT
Page 37
October 2018 Service and Repair Manual
Specifications
T
Part No. 1268557GT Z®-135/70 23
Page 38
Service and Repair Manual October 2018
Repair Procedures
Section 3 Repair Proc edures
Observe and Obey:
RRepair procedures shall be completed by a
person trained and qualified on the repair of this
machine.
RI m m ediate ly tag and remove from service a
damaged or malfunctioning machine.
RRepair any machine damage or malfunction
before operating the machine.
Before Repairs Start:
RRead, understand and obey the safety rules
and operating instructions in the appropriate
operator's manual on your machine.
Machine Configuration:
RUnless otherwise specified, perform each
repair procedure with the machine in the
following configuration:
• Machine parked on a firm, level surface
• Key switch in the off position with the key
removed
• The red Emergency Stop button in the off
position at both the ground and platform
controls
• Wheels chocked
• All external AC power suppl y discon nect ed
from the machine
• Boom in the stowed position
• Turntable secured with the turntable rotation
lock
RBe sure that all necessary tools and parts are
available and ready for use.
R Use only Genie approved replacement parts.
R R ead each pr oc edure com plet ely and adhere
to the instructions. Attempting shortcuts may
produce hazardous conditions.
24 Z®-135/70 Part No. 1268557GT
Page 39
October 2018 Service and Repair Manual
Safety alert symbol—used to alert
personnel to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or
Indicates a imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided,
could result in death or serious
injury.
Indicates a potentially ha
situation which, if not avoided,
may cause minor or moderate
injury.
Indicates a potentially hazardous
situation which, if not avoided,
may result in property damage.
Repair Procedures
About This Section
Most of the procedures in this section should only
be performed by trained service professional in a
suitably equipped workshop. Select the appropriate
repair procedure after troubleshooting the problem.
Perform disassembly procedures to the point where
repairs can be completed. Then to re-assemble,
perform the disassembly steps in reverse order.
Symbols Legend
death.
zardous
Indicates that a specific result is expected after
performing a series of steps.
Indicates that an incorrect result has occurred
after performing a series of steps.
Part No. 1268557GT Z®-135/70 25
Page 40
Service and Repair Manual October 2018
Platform Controls
Platform Controls
The platform controls contains two printed circuit
boards:
The LED circuit board is mounted to the underside
of the control box lid which contains the LEDs. The
LED circuit board sends the input from the operator
to the platform controls circuit board (PCON). The
circuit board (PCON) sends the data to the
turntable control box (TCON) for processing.
The platform controls ECM circuit board
communicates with the turntable controls. The
joystick controllers at the platform controls utilize
Hall Effect technology and require no adjustment.
The operating parameters of the joysticks are
stored in memory at the turntable controls. If a
joystick controller error occurs or if a joystick is
replaced, it will need to be calibrated before that
particular machine function will operate. Refer to
Repair Procedure, How to Calibrate a Joystick Controller.
Each joystick controller should operate smoothly
and provide proportional speed control over its
entire range of motion.
For further information or assistance, consult Genie
Product Support.
down/retract joystick
4 drive/steer joystick control ler
5 LED circuit board
6 primary boom up/down, primary boom
extend/retract and turntable rotate left/right
joystick
26 Z®-135/70 Part No. 1268557GT
Page 41
October 2018 Service and Repair Manual
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in
serious injury. Remove all rings,
watches and other jewelry.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Component damage hazard.
Electrostatic discharge (ESD)
can damage printed circuit board
components. Maintain firm
contact with a metal part of the
machine that is grounded at all
times when handling printed
circuit boards OR use a
grounded wrist strap.
Platform Controls
1-1
Platform Circuit Board
death or
Note: When the platform circuit board is replaced,
jib bellcrank and platform level will need to be
calibrated. Refer to Repair Procedures, How to
Calibrate the Jib Boom Bellcrank Angle Sensor or
How to Calibrate the Platform Level Sensor.
How to Remove the Circuit Board
1 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
2 Locate the cables that connect to the bottom of
the control box. Number each cable and its
location at the control box.
3 Disconnect the cables from the bottom of the
platform control box.
4 Remove the control cable receptacle retaining
fasteners from the bottom of the platform
control box.
7 Attach a grounded wrist strap to the ground
screw inside the control box.
8 Tag and carefully disconnect the wire
connectors from the circuit board.
9 Tag and disconnect the ribbon cable from the
LED circuit board.
10 Remove the circuit board mounting fasteners.
11 Carefully remove the circuit board from the
control box.
5 Remove the platform control box lid retaining
fasteners. Open the control box lid.
6 Locate the circuit board mounted to the inside
of the platform control box.
Part No. 1268557GT Z®-135/70 27
Page 42
Service and Repair Manual October 2018
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in
serious injury. Remove all rings,
watches and other jewelry.
Component damage hazard.
Electrostatic discharge (ESD)
can damage printed circuit board
components. Maintain firm
contact with a metal part of the
machine that is grounded at all
t
circuit boards OR use a
grounded wrist strap.
Platform Controls
How to Remove the LED Circuit Board
How to Remove the LED Circuit
Board
1 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
2 Remove the platform control box lid retaining
fasteners. Open the control box lid.
3 Locate the circuit board mounted to the inside
of the platform control box.
death or
imes when handling printed
4 Tag and carefully disconnect the ribbon cables
from the membrane circuit board.
5 Remove the circuit board mounting fasteners.
6 Carefully remove the LED circuit board from
the platform control box lid. Do not lose the
plastic spacers.
Note: When installing the LED circuit board, be sure
the plastic spacers are installed between the circuit
board and the control box lid.
28 Z®-135/70 Part No. 1268557GT
Page 43
October 2018 Service and Repair Manual
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Component damage hazard.
Electrostatic
can damage printed circuit board
components. Maintain firm
contact with a metal part of the
machine that is grounded at all
times when handling printed
circuit boards OR use a
grounded wrist strap.
Platform Controls
1-2
Membrane Decal
How to Replace the Membrane
Decal
The membrane decal is a special decal that
consists of a decal with an electronic membrane on
the backside. The membrane contains touch
sensitive areas that, when pushed, activate the
machine functions. The membrane contains touch
sensitive areas that activate the machine functions.
1 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
2 Remove the platform control box lid retaining
fasteners. Open the control box lid.
8 Install the new membrane decal while guiding
the ribbon cables through the control box lid.
Note: Be sure that all LED locations on the
membrane decal align with the LEDs on the
membrane circuit board.
9 Install a new platform controls decal over the
membrane decal.
10 Open the control box lid and carefully connect
the ribbon cables from the membrane decal to
the membrane circuit board.
3 Tag and carefully disconnect the two ribbon
cables from the membrane circuit board.
4 Close the control box lid.
5 Remove the platform controls decal from the
platform control box.
6 Carefully remove the membrane decal from
the control box lid while guiding the ribbon
cables out of the control box lid.
discharge (ESD)
7 Remove any decal adhesive from the control
box lid with a mild solvent.
Note: Do not allow any solvent to come in contact
with the membrane circuit board.
Part No. 1268557GT Z®-135/70 29
Page 44
Service and Repair Manual October 2018
Platform Controls
1-3
Joysticks
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
How to Calibrate a Joystick
The joystick controllers on this machine utilize
digital Hall Effect technology for proportional control.
If a joystick controller is disconnected or replaced, it
must be calibrated before that particular machine
function will operate.
Note: The joystick must be calibrated before the
threshold, max-out or ramping can be set.
Note: After each joystick is calibrated, check the
display at the ground control box. There should be
no calibration faults shown on the display. If
calibration faults exist, repeat procedure for that
joystick controlled function.
Note: Perform this procedure with the engine off.
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
7 Locate the drive/steer joystick .
8 Move the drive/steer joystick full stroke in the
forward direction and hold for 5 seconds, the n
return to the center or neutral position.
9 Move the drive/steer joystick full stroke in the
reverse direction and hold for 5 seconds, then
return to the center or neutral position.
Result: The alarm at the ground controls
should sound for a successful calibration.
Plus Minus Previous Enter
Drive functions:
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until
DEFAULTS is displayed.
30 Z®-135/70 Part No. 1268557GT
DELETE DRIVE JOYSTICK
Page 45
October 2018 Service and Repair Manual
Platform Controls
Steer functions:
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until DELETE
STEERJOYSTICK
DEFAULTS is displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the drive/steer joystick .
8 Move the drive/steer joystick or thumb rocker
switch (if equipped) full stroke in the left
direction and hold for 5 seconds, then return to
the center or neutral position.
9 Move the drive/steer joystick or thumb rocker
switch (if equipped) full stroke in the right
direction and hold for 5 seconds, then return to
the center or neutral position.
Result: The alarm at the ground controls
should sound for a successful calibration.
Secondary boom up/down and extend/retract
functions:
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until DELETE SECONDARY BOOM
JOYSTICK DEFAULTS is displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the secondary boom up/down and
extend/retract joystick.
8 Move the secondary boom up/down and
extend/retract joystick full stroke in the
up/extend direction and hold for 5 seconds,
then return to the center or neutral position.
9 Move the secondary boom up/down and
extend/retract joystick full stroke in the
down/retract direction and hold for 5 seconds,
then return to the center or neutral position.
Result: The alarm at the ground controls
should sound for a successful calibration.
Part No. 1268557GT Z®-135/70 31
Page 46
Service and Repair Manual October 2018
Platform Controls
Primary boom extend/retract functio n s:
Primary boom up/down functions:
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until DELETE PRI M A RY BOOM
EXTEND/RETRACT JOYSTICK DEFAULTS
is displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the thumb rocker switch on top of the
primary boom/turntable rotate joystick.
8 Move the primary boom extend/retract thumb
rocker switch full stroke in the extend direction
and hold for 5 seconds, the n return t o
thecenter or neutral position.
9 Move the primary boom extend/retract thumb
rocker switch full stroke in the retract direction
and hold for 5 seconds, then return to the
center or neutral position.
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until DELETE PRI M A RY BOOM
UP/DOWN JOYSTICK DEFAULTS is
displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the primary boom/turntable rot ate
joystick.
8 Move the boom/turntable rotate joystick full
stroke in the up direction and hold for
5 seconds, then return to the center or neutral
position.
9 Move the boom/turntable rotate joystick full
stroke in the down direction and hold for
5 seconds, then return to the center or neutral
position.
Result: The alarm at the ground controls
should sound for a successful calibration.
32 Z®-135/70 Part No. 1268557GT
Result: The alarm at the ground controls
should sound for a successful calibration.
Page 47
October 2018 Service and Repair Manual
Platform Controls
Jib boom up/down functions:
Turntable rotate functions:
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until RESET JIB BOOM UP/DOWN
JOYSTICK DEFAULTS is displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the jib boom joystick.
8 Move the jib boom joystick full stroke in the up
direction and hold for 5 seconds, then return to
the center or neutral position.
9 Move the jib boom joystick full stroke in the
down direction and hold for 5 seconds, then
return to the center or neutral position.
Result: The alarm at the ground controls
should sound for a successful calibration.
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the scroll button to scroll through the
menu until DELETE TURNTABLE ROTATE
JOYSTICK DEFAULTS is displayed.
5 Press the plus button to select YES, then
press the enter button.
6 Do not start the engine.
7 Locate the primary boom/turntable rot ate
joystick.
8 Move the boom/turntable joystick full stroke in
the left direction and hold for 5 seconds, then
return to the center or neutral position.
9 Move the boom/turntable joystick full stroke in
the right direction and hold for 5 seconds, then
return to the center or neutral position.
Result: The alarm at the ground controls
should sound for a successful calibration.
Part No. 1268557GT Z®-135/70 33
Page 48
Service and Repair Manual October 2018
Platform Controls
How to Res et a Propor tional Val ve Coil Def ault
How to Set t he Functio n Threshol ds and Def ault Functi ons Speeds
How to Reset a Proportional Valve
Coil Default
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
Note: This procedure only needs to be performed if
a proportional valve has been replaced.
Note: After the valve coil defaults have been set,
each machine function threshold and default
function speed must be set. Refer to Repair
Procedure, How to Set the Function Thresholds and Default Function Speeds.
1 Turn the key switch to the off position.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the minus button twice, then press the
enter button twice.
4 Use the previous button to scroll through the
menu until the function valve that needs to be
reset is displayed. Press the plus button to
select yes, then press the enter button to save
the setting.
How to Set the Function
Thresholds and Default Functions
Speeds
Note: Before the threshold and default function
speeds can be set, the boom function proportional
valve coil defaults must be set first. Refer to Repair
Procedure, How to Reset a Proportional Valve Coil Default.
Note: If a boom function proportional valve coil has
not been replaced and just want to reset the
function speed to original factory settings, proceed
to Function speeds procedure.
1 Start the engine from the platform controls.
2 Press down the foot switch.
Note: Be sure the engine rpm is set to foot switch
activated high idle.
Function threshold:
3 Select a joystick controlled function that needs
to have the threshold set.
4 Slowly move the joystick off center in either
direction just until the machine function starts
to move, then move the joystick very slowly
towards the neutral or center position just
before the machine function stops. Do not let
go of the joystick.
5 While holding the joystick in position, press the
engine start button at the platform controls to
set the joystick controller threshold.
5 Press the enter or previous button on the
LCD screen until EXIT is displayed.
6 Press the plus button or minus button to
select YES and then press the enter button.
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Platform Controls
6 Slowly move the joystick off center in the
opposite direction just until the machine
function starts to move, then move the joystick
very slowly towards the neutral or center
position just before the machine function
stops. Do not let go of the joystick.
7 While holding the joystick in position, press the
engine start button at the platform controls to
set the joystick controller threshold.
8 Repeat steps for each joystick controlled
machine function:
• Primary boom up/down
• Turntable rotate left/right
Function speeds:
Note: Be sure the machine is in the stowed position
and the boom is rotated between the circle end
tires.
Note: Perform this procedure with the machine on a
firm, level surface that is free of obstructions.
Note: Unless the LCD screen displays NOT
CALIBRATED, it will be necessary to enter the
valve calibration menu.
12 Start the engine from the platform controls.
13 Select a function that needs the function speed
set.
• Primary boom extend/retract
• Secondary up/down and extend/retract
• Drive forward/reverse
9 Once the threshold has been set, press and
hold the engine start button until the engine
shuts off. Do not press the red Emergency
Stop button.
Note: Approximately 3 seconds after the engine
shuts off, the alarm at the ground controls will
sound to indicate the settings are being saved in
memory.
10 At the ground controls, turn the key switch to
the off position, wait a moment and then turn
the key switch to platform controls.
11 Check the display at the ground controls to be
sure there are no calibration faults.
Note: There should be no calibration faults shown
on the display. If calibration faults exist, repeat this
procedure.
14 Primary boom up/down and extend/retract
functions: Move the joystick full stroke in the
up or extend direction. When the alarm
sounds, move the joystick in the opposite
direction full stroke until the alarm sounds
again. Return the joystick to center.
Secondary boom up and down functions:
Starting from the stowed position, move the
joystick full stroke in the up direction. When the
alarm sounds, move the joystick in the down
direction full stroke until the alarm sounds
again. Return the joystick to center.
Turntable rotate function, fully retracted:
Move the rotate joystick full stroke in either the
left or right direction until the alarm sounds.
Return the joystick to center.
Part No. 1268557GT Z®-135/70 35
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Service and Repair Manual October 2018
Platform Controls
Turntable rotate function, primary boom
extended: Extend the primary boom
approximately 4 ft / 1.2 m. Move the rotate
joystick full stroke in either the left or right
direction until the alarm sounds. Return the
joystick to center.
Turntable rotate function, primary and jib
booms extended: With the primary boom
extended approximately 4 ft / 1.2 m, extend
the jib boom approximately 1 ft / 0.3 m. Move
the rotate joystick full stroke in either the left or
right direction until the alarm sounds. Return
the joystick to center.
15 Once the function speeds have been set,
press and hold the engine start button until the
engine shuts off. Do not press the red
Emergency Stop button.
Note: Approximately 3 seconds after the engine
shuts off, the alarm at the ground controls will
sound to indicate the settings are being saved in
memory.
16 At the ground controls, turn the key switch to
the off position, wait a moment and then turn
the key switch to platform controls.
17 Check the display at the ground controls to be
sure there are no calibration faults.
Note: There should be no calibration faults shown
on the display. If calibration faults exist, repeat this
procedure.
How to Adjus t the Funct ion Speeds
How to Adjust the Function
Speeds
Note: Perform this procedure with the boom in the
stowed position.
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
1 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the plus button twice, then press the
minus button twice.
4 Press the previous button until the function to
be adjusted is displayed.
5 Press the plus button to increase the speed or
press the minus button to decrease the speed.
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October 2018 Service and Repair Manual
Platform Controls
6 Press the enter button to save the setting in
memory.
7 Press the enter or previous button on the
LCD screen until EXIT is displayed.
8 Press the plus button or minus button to
select YES and then press the enter button.
9 Continue to perform this procedure until the
machine function speed meets specification.
Refer to Specifications, Performance Specifications.
How to Adjus t the Funct ion Ramp R ate Setti ng
How to Adjust the Function Ramp
Rate Setting
The ramp rate setting of a joystick controls the time
at which it takes for the joystick to reach maximum
output, when moved out of the neutral position. The
ramp rate settings of a joystick can be changed to
compensate for hydraulic pump wear to maintain
peak performance from the machine.
Note: Perform this procedure with the boom in the
stowed position.
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
1 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
2 Press and hold the enter button on the ground
control panel while turning the key switch to
platform controls. Hold the enter button for
approximately 5 seconds.
3 Press the plus button twice, then press the
previous button twice.
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Service and Repair Manual October 2018
Platform Controls
4 Press the previous button until the function to
be adjusted is displayed.
5 Press the plus button to increase the ramp
rate or press the minus button to decrease the
ramp rate.
6 Press the enter button to save the setting in
memory.
7 Press the enter or previous button on the
LCD screen until EXIT is displayed.
8 Press the plus button or minus button to
select YES and then press the enter button.
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October 2018 Service and Repair Manual
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hyd
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Crushing hazard. The platform
leveling cylinder may fall if not
properly suppor
removed from the machine.
Platform Comp onents
2-1
Platform Leveling Cylinder
The platform leveling cylinder keeps the platform
level through the entire range of boom motion. The
platform is maintained level to the turntable. To
accomplish this, the ECM at the ground controls
compares the difference in readings between the
platform angle sensor and the turntable level
sensor, which then sends a signal to the platform
controls to open or close the appropriate platform
level proportional valve on the platform manifold to
maintain a level platform. The platform leveling
cylinder is equipped with counterbalance valves to
prevent movement in the event of a hydraulic line
failure.
How to Remove the Platform
Leveling Cylinder
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Extend the jib boom until the platform leveling
cylinder barrel-end pivot pin is accessible.
4 Place a block under the platform leveling
cylinder for support.
5 Remove the external snap rings from the
barrel-end pivot pin. Use a soft metal drift to
remove the barrel-end pivot pin.
6 Support the rod end of the platform level
cylinder.
7 Remove the pin retaining fasteners from the
platform leveling cylinder rod-end pivot pin.
Use a soft metal drift to remove the barrel-end
pivot pin.
8 Carefully pull the platform leveling cylinder out
of the boom to access the hydraulic hoses.
9 Tag, disconnect and plug the hydraulic hoses
from the platform leveling cylinder. Cap the
fittings on the cylinder.
raulic
10 Remove the platform leveling cylinder from the
machine.
2 Raise the jib boom slightly and place blocks
under the platform.
3 Lower the jib boom until the platform is resting
on the blocks just enough to support the
platform.
Note: Do not rest the entire weight of the boom on
the blocks.
Part No. 1268557GT Z®-135/70 39
ted when
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Service and Repair Manual October 2018
Component damage hazard.
Mark the platform mounting
weldment and the rotator flange
before removing the platform
mounting weldment. The
platform mounting weldment
must be replaced in the exact
same position on the rotator
flange as it was before removal.
If a new rotator is installed or the
rotator is disassembled, proper
alignment can be achieved by
rotating the rotator all the way to
the left and then installing the
platform mounting weldment all
the way in the left position.
Component damage hazard. The
platform angle sensor is a very
sensitive instrument. It can be
damaged internally if is dropped
or sustains any physical shock,
even if the damage is not visible.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not
squirt or spray.
Platform Comp onents
2-2
Platform Rotator
The platform rotator is a hydraulically activated
helical gear assembly used to rotate the platform
160 degrees.
How to Remove the Platform
Rotator
3 Remove the platform angle sensor retaining
fasteners. Remove the platform angle sensor
from the platform rotator.
4 Tag, disconnect and plug the hydraulic hoses
from the platform rotator manifold. Cap the
fittings on the manifold.
5 Tag, disconnect and plug the hydraulic hoses
from the platform manifold. Cap the fittings on
the manifold.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Remove the platform. Refer to Repair
Procedure, How to Remove the Platform.
2 Tag and disconnect the electrical connector
from the platform angle sensor.
40 Z®-135/70 Part No. 1268557GT
6 Remove the power to platform electrical outlet
box bracket mounting fasteners. Do not
disconnect the wiring.
allow oil to
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October 2018 Service and Repair Manual
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Crushing hazard. The platform
mounting weldment may
become unbalanced
is not properly supported.
Crushing hazard. The platform
rotator could fall when removed
from the machine if not properly
supported.
Platform Comp onents
7 Remove the hose and cable guide retaining
fasteners and remove the guide from the
platform support.
8 Remove the weld cable from the platform (if
equipped).
9 Support the platform mounting weldment, but
do not apply any lifting pressure.
10 Remove the eight mounting bolts from the
platform mounting weldment.
11 Remove the center bolt and slide the platform
mounting weldment off of the platform rotator.
How to Blee d the Platf orm Rotat or
How to Bleed the Platform Rotator
Note: Do not start the engine. Use auxiliary power
for all machine functions in this procedure.
1 Rotate the platform full right, then full left until
air is completely out of the rotator. Bleeding the
valve is not necessary.
and fall if it
12 Support the platform rotator with a suitable
lifting device. Do not apply any lifting pressure.
13 Place a block under the platform leveling
cylinder for support.
14 Remove the pin retaining fasteners from the
platform leveling cylinder rod-end pivot pin. Do
not remove the pin.
15 Remove the pin retaining fasteners from the jib
boom to platform rotator pivot pin. Do not
remove the pin.
16 Use a soft metal drift to remove both pins and
remove the platform rotator from the machine.
Part No. 1268557GT Z®-135/70 41
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Service and Repair Manual October 2018
Platform Comp onents
2-3
Platform Level Sensor
The platform level sensor is mounted to the side of
the platform rotator. The platform level sensor is
monitored by the control system to maintain a level
platform through boom range of motion. If a
platform level sensor is replaced, it must be
calibrated prior to machine operation.
How to Calibrate the Platfor m
Level Sensor
Note: Perform this procedure with the machine on a
firm, level surface.
Note: Perform this procedure with the boom in the
stowed position.
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
1 Secure a digital level to one of the side railings
of the platform.
2 Start the machine and level the platform to
gravity. Turn the machine off.
3 Open the ground control box.
Before serial number 321:
4 Locate the 2 pin connector in the lower left
hand area of the ground control box.
5 Remove the connector plug and insert a
jumper wire between the two pins of the
connector.
After serial number 320:
6 Locate the calibration toggle switch at the top
of the ground control box. Activate calibration
mode by moving the toggle switch in the left
direction.
7 Temporarily install a control box door retaining
fastener between the door and the box to
prevent the control box door from moving the
toggle switch while calibrating the machine.
All models:
8 Insert the key into the bypass/recovery key
switch and turn it to the bypass position.
Note: The angle sensor calibration values will not
be saved correctly unless the key switch is in the
bypass position and the calibration toggle switch is
activated.
9 Press and hold the enter button on the ground
control panel while turning the key switch to
ground controls. Hold the enter button for
approximately 5 seconds.
10 Enter sensor calibration mode by pressing the
buttons at the ground controls in the following
sequence: (plus)(enter)(enter)(plus).
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October 2018 Service and Repair Manual
Tip
remove the jumper wire will
result in an unsafe configuration
which will compromise machine
stability. Operating the machine
in this configuration will result in
the machine tipping over,
resulting in death or serious
injury. The jumper wire must be
removed before operating the
machine.
Platform Comp onents
11 Press the enter or previous button on the
LCD screen until SET
SENSORTOGRAVITY is displayed.
12 Press the plus button to select YES, then
press the enter button to accept.
13 Press the enter or previous button on the
LCD screen until EXIT is displayed.
14 Press the plus button to select YES, then
press the enter button to accept.
Before serial number 321:
15 Remove the wire jumper from the 2 pin
connector in the lower left hand area of the
ground control box that was installed in step 5.
Install the connector plug.
PLATFORMLEVEL
-over hazard. Failure to
2-4
Platform Overload System (if
equipped)
Proper calibration of the platform overload system
is essential to safe machine operation. Continued
use of an improperly calibrated platform overload
system could result in the system failing to sense an
overloaded platform. The stability of the machine is
compromised and it could tip over.
How to Calibrate the Platfor m
Overload System (if equippe d)
Note: Perform this procedure with the machine on a
firm, level surface.
1 Level the platform.
2 Determine the maximum platform capacity.
Refer to the machine serial plate.
16 Close the ground control box and install the
door retaining fasteners.
After serial number 320:
17 Remove the fastener that was temporarily
installed. Close the control box door and install
the door retaining fasteners.
Note: When the control box door is closed, the
calibration toggle switch is automatically activated
to exit out of calibration mode.
Part No. 1268557GT Z®-135/70 43
3 Using a suitable lifting device, place an
appropriate test weight equal to that of the
maximum platform capacity at the center of the
platform floor.
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Service and Repair Manual October 2018
Platform Comp onents
Determine the limit switch trigger p o int:
Confirm the setting:
4 Gently move the platform up and down by
hand, so it bounces approximately 1 to
2 inches / 2.5 to 5 cm. Allow the platform to
settle.
Result: The overload indicator light and the
alarm is on. Slowly tighten the load spring
adjustment nut by turning it clockwise just until
the overload indicator light and alarm turns off.
Note: The platform will need to be moved up and
down and allowed to settle in between adjustments.
Note: There may be a 2 second delay before the
overload indicator lights flash and the alarm
sounds.
Result: The overload indicator light and
alarm is off. Slowly loosen the load spring
adjustment nut by turning it counterclockwise
just until the overload indicator light and alarm
turn on.
Note: There may be a 2 second delay before the
overload indicator lights flash and the alarm
sounds.
Note: The platform will need to be moved up and
down and allowed to settle in between adjustments.
5 Start the engine from the platform controls.
6 Lift the test weight off the platform floor using a
suitable lifting device.
7 Place the test weight back onto the center of
the platform floor using a suitable lifting device.
Result: The alarm should be off. The platform
overload indicator light should be off at the
platform controls and there should be no error
message on the LCD display at the ground
controls.
Note: There may be an 2 second delay before the
overload indicator lights and alarm turn off.
8 Add an additional 15 lbs / 6.8 kg test weight to
the original test weight to overload the
platform.
Result: The alarm should be sounding. The
platform overload indicator light should be
flashing at the platform controls and platform
overload should be displayed on the LCD
screen at the ground controls.
Note: There may be a 2 second delay before the
overload indicator lights flash and the alarm
sounds.
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October 2018 Service and Repair Manual
Platform Comp onents
9 Test all machine functions from the platform
controls.
Result: All platform control functions should
not operate.
10 Turn the key switch to ground controls.
11 Test all machine functions from the ground
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Jib Boom Component s
3-1
Jib Boom Cable Track
The jib boom cable track guides the cables and
hoses running up the jib boom. It can be repaired
link by link without removing the cables and hoses
that run through it. Removing the entire jib boom
cable track is only necessary when performing
major repairs that involve removing the jib boom.
How to Remove the Jib Boom
Cable Track
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Raise the jib boom to a horizontal position.
Turn the machine off.
2 Remove the cover from the hose and cable
junction box under the jib boom cable track.
4 Tag, disconnect and plug the two hydraulic
hoses from the jib boom manifold that lead to
the platform manifold. Cap the fittings on the
manifold.
Note: The jib boom manifold is located at the
platform end of the primary extension boom.
5 Pull the hoses out of the plastic hose guide
located on the primary extension boom near
the jib boom manifold.
6 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
3 Tag and disconnect the electrical connectors
inside the cable track junction box.
Part No. 1268557GT Z®-135/70 47
7 Remove the hose and cable clamp retaining
fasteners from the jib boom cable track
junction box. Remove the clamps.
8 Pull the jib boom lift cylinder hydraulic hoses
out of the jib boom cable track junction box.
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Service and Repair Manual October 2018
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Crushing hazard. If the upper
and lower cable tracks are not
properly secured together, the
cable track could become
unbalanced and fall when
removed from the machine.
Crushing hazard. The cable
track could become
unbalanced and fall i
properly attached to the
overhead crane.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Jib Boom Component s
9 Remove the hose and cable clamp retaining
fasteners at the platform end of the jib boom
cable track tube. Remove the clamps.
10 Tag and disconnect the electrical connectors
from the platform manifold.
11 Tag and disconnect the electrical connectors
from the platform box.
17 Remove the fasteners from the cable track
tube guide at the platform end of the jib boom.
Remove the cable track tube guide from the jib
boom.
18 Place blocks between the upper and lower
cable tracks and secure the upper and lower
tracks together.
12 Tag and disconnect the electrical connector
from the foot switch.
13 Tag and disconnect the ele c tric al connec tor
from the platform angle sensor.
14 Tag, disconnect and plug the hydraulic hoses
from the "P" and "T" ports on the platform
manifold.
15 Pull the two hydraulic hoses just removed and
all of the cables through the hose and cable
guide at the platform support.
16 Remove the cotter pin from the upper cable
track tube at the platform end of the jib boom.
Do not discard the washer.
Note: Always replace the cotter pin with a new one.
19 Attach a lifting strap from an overhead crane to
the cable track.
20 Remove the mounting fasteners that attach the
lower cable track to the jib boom.
21 Carefully remove the cable track from the
machine and lay it on a structure capable of
supporting it.
f not
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October 2018 Service and Repair Manual
Component damage hazard.
The boom cable track can
damaged if it is twisted.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Jib Boom Component s
How to Repai r the Cabl e Track
How to Repair the Cable Track
6 Lift up the hoses and cables and carefully
insert the new 4-link section of cable track.
be
Note: A cable track repair kit is available through
the Genie Service Parts Department.
1 Visually inspect the cable track and determine
which 4-link section needs to be replaced.
2 Carefully remove the snap rings and pins from
each end of the damaged section of cable
track.
3 Remove the retaining fasteners from the upper
black rollers from the 4-link section of cable
track to be replaced. Remove the rollers.
4 Lift up the hoses and cables and carefully
remove the damaged 4-link section of cable
track.
5 Remove the upper rollers from the
replacement section of cable track.
7 Connect the ends of the replacement cable
track section to the existing cable track using
the pins and snap rings.
8 Install the rollers onto the new section of cable
track.
9 Operate the jib boom extend/retract function
through a full cycle to ensure smooth operation
of the new section of cable track.
Part No. 1268557GT Z®-135/70 49
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Service and Repair Manual October 2018
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not al
squirt or spray.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Jib Boom Component s
3-2
Jib Boom
How to Remove the Jib Boom
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Remove the platform mounting weldment and
the platform rotator. Refer to Repair
Procedure, How to Remove the Platform Rotator.
2 Tag, disconnect and plug the two hydraulic
hoses from the jib boom manifold that lead to
the platform manifold. Cap the fittings on the
manifold.
low oil to
3 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses from the jib boom
manifold. Cap the fittings on the manifold.
4 Remove the cotter pin from the upper cable
track tube at the platform end of the jib boom.
Note: Always replace the cotter pin with a new one.
5 Remove the cable track guide fasteners from
the cable track guide at the platform end of the
jib boom and remove the cable track guide
from the jib boom.
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October 2018 Service and Repair Manual
Crushing hazard. If the upper
and lower cable tracks are not
properly secured together, the
cable track could become
unbalanced and fall when
removed from the machine.
Crushing hazard. The cable
track could become
unbalanced and fall if not
properly attached to the
overhead crane.
Component
Cables and hoses can be
damaged if they are kinked or
pinched.
Crushing hazard. The jib boom
could fall when the barrel
pivot pin is removed if not
properly supported by the
overhead crane.
Crushing hazard. The jib boom
lift cylinder may become
unbalanced and fall when it is
removed from the machine if it is
not properly supported by the
overhead crane.
Jib Boom Component s
6 Place blocks between the upper and lower
cable tracks and secure the upper and lower
tracks together.
12 Remove the jib boom angle sensor mounting
bracket fasteners from the side of the primary
extension boom.
7 Attach a lifting strap from an overhead crane to
the cable track.
8 Remove the mounting fasteners that attach the
lower cable track to the jib boom.
9 Remove the cable track from the machine and
lay to the side.
damage hazard.
10 Disconnect the electrical connector from the jib
boom angle sensor located at the jib boom
pivot pin on the engine side of the machine.
13 Carefully remove the bracket and sensor
assembly. Note the location of the springs. Do
not lose the springs.
Note: There is one spring inside the jib boom pivot
pin and one inside the angle sensor.
Note: When the jib boom is installed, the jib boom
angle sensor will need to be calibrated. Refer to
repair procedure, Jib Boom Bellcrank Angle Sensor
for the calibration procedure.
14 Attach a lifting strap from an overhead crane to
the platform end of the jib boom.
15 Support the barrel end of the jib boom lift
cylinder with another suitable lifting device.
16 Remove the pin retaining fasteners from the jib
boom lift cylinder barrel-end pivot pin.
17 Use a soft metal drift to remove the jib boom lift
cylinder barrel-end pivot pin.
-end
11 Remove the cover retaining fasteners from the
jib boom angle sensor. Remove the cover.
Part No. 1268557GT Z®-135/70 51
18 Secure the jib boom lift cylinder to the jib boom
with a strap or other suitable device.
19 Raise the jib boom to a horizontal position
using the overhead crane.
20 Attach a second lifting strap from the overhead
crane to the pivot end of the jib boom.
21 Remove the pin retaining fastener from the jib
boom pivot pin. Do not remove the pin.
22 Place a block under the jib boom level cylinder
for support. Protect the cylinder rod from
damage.
Page 66
Service and Repair Manual October 2018
Crushing hazard. The jib boom
may become unbalanced and fall
when it is re
machine if it is not properly
supported by the overhead
crane.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Jib Boom Component s
23 Use a soft metal drift to tap the pin halfway out
in one direction and lower one side of the jib
boom bellcrank. Tap the pin in the other
direction and lower the other side of the jib
boom bellcrank.
24 Use a soft metal drift to remove the jib boom
pivot pin. Remove the jib boom from the
machine and place it on a structure capable of
supporting it.
3-3
Jib Boom Lift Cylinder
How to Remove the Jib Boom Lift
Cylinder
Note: Perform this procedure with the boom in the
stowed position.
moved from the
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Raise the jib boom slightly and place blocks
under the platform mounting weldment. Lower
the jib boom until the platform is resting on the
blocks just enough to support the platform.
Note: Do not rest the entire weight of the boom on
the blocks.
2 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
52 Z®-135/70 Part No. 1268557GT
3 Support the rod end of the jib boom lift cylinder
with a suitable lifting device.
Page 67
October 2018 Service and Repair Manual
Crushing hazard. The jib boom
lift cylinder may become
unbalanced and fall when it is
removed from the machine if it is
not properly supported by the
overhead crane.
Crushing hazard. The jib boom
could fall if not properly
supported when th
level cylinder rod-end pivot pin is
removed.
Jib Boom Component s
4 Remove the pin retaining fasteners from the jib
boom lift cylinder rod-end pivot pin. Use a soft
metal drift to remove the pin and let the
cylinder hang down.
5 Attach a lifting strap from an overhead crane to
the barrel end of jib boom lift cylinder.
6 Remove the pin retaining fasteners from the jib
boom lift cylinder barrel-end pivot pin. Use a
soft metal drift to remove the pin.
7 Remove the jib boom lift cylinder from the
machine.
3-4
Jib Boom Level Cylinder
How to Remove the Jib Boom
Level Cylinder
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Extend the primary boom until the jib boom
level cylinder barrel-end pivot pin is
accessible.
2 Raise the jib boom above horizontal.
3 Attach an overhead crane to the jib boom
assembly for support.
4 Place a block under the jib boom level cylinder
for support. Protect the cylinder rod from
damage.
5 Remove the pin retaining fasteners from the jib
boom level cylinder rod-end pivot pin. Use a
soft metal drift to remove the pin.
e jib boom
Part No. 1268557GT Z®-135/70 53
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Service and Repair Manual October 2018
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt
Crushing hazard. The jib boom
level cylinder could become
unbalanced and fall when
removed from the machine if not
properly supported.
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Jib Boom Component s
6 Remove the external snap rings from the jib
boom level cylinder barrel-end pivot pin. Use a
soft metal drift to remove the pin.
3-5
Jib Boom Extension Cylinder
7 Tag, disconnect and plug the jib boom level
cylinder hydraulic hoses from the jib boom
manifold. Cap the fittings on the manifold.
or spray.
8 Attach an overhead crane or other suitable
device to the jib boom level cylinder for
support.
9 Carefully remove the jib boom level cylinder
from the machine.
How to Remove the Jib Boom
Extension Cylinder
nd a
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Remove the jib boom lift cylinder. Refer to
Repair Procedure, How to Remove the Jib Boom Lift Cylinder.
54 Z®-135/70 Part No. 1268557GT
2 Attach a lifting strap from an overhead crane to
the platform end of the jib boom for support.
Raise the jib boom to a horizontal position
using the overhead crane.
Page 69
October 2018 Service and Repair Manual
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
t
gradually. Do not allow oil to
squirt or spray.
Crushing hazard. The jib boom
may become unbalanced and fall
when it is removed from the
machine if it is not properly
supported by the overhead
crane.
Jib Boom Component s
3 Extend the jib boom until the jib boom
extension cylinder rod-end pivot pin is
accessible.
4 Tag, disconnect and plug the two hydraulic
hoses from the jib boom manifold that lead to
the platform manifold. Cap the fittings on the
manifold.
5 Tag, disconnect and plug the jib boom lift
cylinder and jib boom extension cylinder
hydraulic hoses from the jib boom manifold.
Cap the fittings on the manifold.
9 Pull the electrical cables out of the lower cable
track that lead to the primary boom.
10 Attach a lifting strap from a second overhead
crane to the pivot end of the jib boom for
support. Do not apply any lifting pressure.
11 Place a block under the jib boom level cylinder
for support. Protect the cylinder rod from
damage.
12 Remove the pin retaining fastener from the jib
boom pivot pin. Do not remove the pin.
13 Use a soft metal drift to tap the pin halfway out
in one direction and lower one side of the jib
boom bellcrank. Tap the pin in the other
direction and lower the other side of the jib
boom bellcrank.
14 Use a soft metal drift to remove the jib boom
pivot pin. Remove the jib boom from the
machine and place it on a structure capable of
supporting it.
he oil pressure to dissipate
6 Remove the cover from the lower jib boom
cable track.
7 Tag and disconnect the electrical connectors
inside the lower cable track.
8 Remove the hose and cable clamp retaining
fasteners from lower cable track at the pivot
end of the jib boom. Remove the clamps.
15 Remove the pin retaining fasteners from the jib
boom extension cylinder rod-end pivot pin.
Use a soft metal drift to remove the pin.
Part No. 1268557GT Z®-135/70 55
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Service and Repair Manual October 2018
Crushing hazard. The jib boom
extension cylinder could become
unbalanced and fall when
removed from the jib boom if not
properly supported.
Jib Boom Component s
16 Attach a lifting strap from an overhead crane to
the barrel end of the jib boom extension
cylinder.
17 Remove the pin retaining fasteners from the jib
boom extension cylinder barrel-end pivot pin.
Use a soft metal drift to remove the pin.
18 Carefully slide the jib boom extension cylinder
out of the jib boom and place it on a structure
capable of supporting it.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
3-6
Jib Boom Bellcrank Angle Sensor
The jib boom bellcrank angle sensor is monitored
by the control system to keep the jib boom bellcrank
vertical and to help maintain a level platform
through boom range of motion. If a jib boom
bellcrank angle sensor is replaced, it must be
calibrated prior to machine operation. The jib boom
bellcrank angle sensor is mounted to the bellcrank
pivot pin on the engine side of the machine.
How to Replace the Jib Boom
Bellcrank Angle Sensor
Note: Perform this procedure with the machine on a
firm, level surface with the boom in the stowed
position.
1 Locate the jib boom bellcrank angle sensor
where the jib boom bellcrank connects to the
primary boom.
2 Disconnect the electrical connector from the
sensor. Remove any tie wraps securing the
wiring.
3 Remove the retaining fasteners from the angle
sensor guard. Remove the guard from the
machine.
56 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Jib Boom Component s
4 Remove the angle sensor cover retaining
fastener. Remove the cover.
5 Remove the angle sensor mounting bracket
retaining fasteners.
6 Remove the angle sensor and bracket
assembly. Do not lose the two springs or the
hex-shaped key.
7 Remove the sensor retaining fasteners from
the mounting bracket. Remove the angle
sensor.
Note: Note the sensor orientation on the bracket
during removal so the new sensor will be installed in
the same position.
8 Install the new angle sensor onto the mounting
bracket.
9 Install one spring, removed in step 6, into the
hex-shaped hole in the angle sensor. Install
the other spring into the hex-shaped hole in the
center of the boom pivot pin.
10 Insert the hex-shaped key into the angle
sensor.
11 Align the side of the sensor with flat area of the
boom pivot pin as shown below.
1 flat area
2 angle sensor
3 hex-shaped hole
12 Insert the hex-shaped key into the bellcrank
pivot pin allowing free clockwise rotation of the
angle sensor mounting br a cket.
Note: Be sure the hex-shaped key remains
engaged in the sensor.
Part No. 1268557GT Z®-135/70 57
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Service and Repair Manual October 2018
Jib Boom Component s
13 Rotate the angle sensor mounting bracket,
while holding the key in the sensor, clockwise
until the mounting bracket fits into the
machined pocket.
14 Install the angle sensor bracket retaining
fasteners.
15 Install the angle sensor cover and install the
cover retaining fasteners.
16 Connect the electrical connector to the new
sensor.
17 Install the angle sensor guard over the angle
sensor.
18 Calibrate the jib boom bellcrank angle sensor.
Refer to Repair Procedure, How to Calibrate the Jib Boom Bellcrank Angle Sensor.
How to Cali brate the Ji b Boom Bel lcrank Ang le Sensor
How to Calibrate the Jib Boom
Bellcrank Angle Sensor
Note: If the primary boom or secondary boom angle
sensors have been removed or replaced, or the
turntable level sensor has been replaced, they must
be calibrated before the jib boom bellcrank angle
sensor. Refer to Repair Procedures, How to
Calibrate the Primary Boom Angle Sensor or How
to Calibrate the Secondary Boom Angle Sensor or
How to Calibrate the Turntable Level Sensor.
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
Note: A digital lev el w i ll be required to perform this
procedure.
Note: A kit is available through Genie Product
Support (Genie part number 58351). This kit
includes a digital level with a magnetic base and
cable harnesses.
58 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Jib Boom Component s
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
Digital levels with alternate zero fu n ction:
1 Prepare the digital level by placing it vertically
on a known surface that is perpendicular to
gravity. Zero out the level with the alternate
zero function.
Note: When the level is calibrated correctly, it
should read 0° on a vertical surface.
Digital levels without alternate zero function:
Before serial number 321:
5 Locate the 2 pin connector in the lower left
hand area of the ground control box.
6 Remove the connector pl ug and insert a
jumper wire between the two pins of the
connector.
After serial number 320:
7 Locate the calibration toggle switch at the top
of the ground control box. Activate calibration
mode by moving the toggle switch in the left
direction.
8 Temporarily install a control box door retaining
fastener between the door and the box to
prevent the control box door from moving the
toggle switch while calibrating the machine.
All models:
Note: If your digital level does not have an alternate
zero function, it will read 90° on a vertical surface.
During calibration, the measured value will need to
be subtracted from 90 degrees to get the correct
number to enter into the system.
2 Raise the jib boom to a slightly less than
horizontal position.
3 Push in the ground controls red Emergency
Stop button to the off position. Do not turn the
key switch to the off position.
4 Open the ground control box.
9 Remove the key from the main key switch.
Insert the key into the bypass/recovery key
switch and turn it to the bypass position.
Note: The angle sensor calibration values will not
be saved correctly unless the key switch is in the
bypass position.
10 Press and hold the enter button on the ground
control panel while pulling out the ground
controls red Emergency Stop button to the on
position. Hold the enter button for
approximately 5 seconds and then release it.
Part No. 1268557GT Z®-135/70 59
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Service and Repair Manual October 2018
Jib Boom Component s
11 Enter sensor calibration mode by pressing the
buttons at the ground controls in the following
sequence: (plus)(enter)(enter)(plus).
12 Press the enter or previous button on the
LCD screen until DELETE JIB LEVEL ANGLE
SENSOR CALIBRATION is displayed.
13 Press the plus button to select YES, then
press the enter button to accept.
14 At the jib level calibration deg 60.0deg screen,
start the engine.
Note: If the system exits out of calibration mode
when the engine is started, repeat step 7 and
continue to step 12.
15 Press and hold a function enable/speed select
button and the platform level up button. Fully
extend the jib boom level cylinder.
Note: When in service/bypass mode, the platform
level buttons are used to adjust the jib boom level
cylinder.
Note: With the jib boom level cylinder is fully
extended, the jib boom bellcrank angle should be at
approximately 60 ± 2 degrees.
16 Attach the digital level to the surface of the jib
boom bellcrank as shown.
1 jib boom angle sensor
2 jib boom bellcrank
3 place level on this surface
17 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
60 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Jib Boom Component s
18 Press and hold a function enable/speed select
button and the platform level down button until
the digital level displays approximately 34 ±
2 degrees.
22 Press and hold a function enable/speed select
button and raise the jib boom above horizontal
to provide additional ground clearance for the
remaining calibration points.
19 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
20 Press and hold a function enable/speed select
button and the platform level down button until
the digital level displays approximately 8 ±
2 degrees.
21 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
23 Press and hold a function enable/speed select
button and the platform level down button until
the digital level displays approximately 18 ±
2 degrees.
Calibration angles
24 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: Be sure the number entered at the ground
controls is a negative number.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
Part No. 1268557GT Z®-135/70 61
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Service and Repair Manual October 2018
Jib Boom Component s
25 Press and hold a function enable/speed select
button and the platform level down button until
the digital level displays approximately 44 ±
2 degrees.
28 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
26 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: Be sure the number entered at the ground
controls is a negative number.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
27 Press and hold a function enable/speed select
button and the platform level down button until
the digital level displays approximately 70 ±
2 degrees. The jib boom level cylinder should
be fully retracted at this point.
Note: Be sure the number entered at the ground
controls is a negative number.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
Note: With the jib boom level cylinder fully retracted,
the jib boom bellcrank angle should be at
approximately 70 degrees.
29 Press and hold the engine start button for
approximately 5 seconds to shut off the engine
and to save the calibration settings.
Note: Do not turn the engine off with the key switch
or red Emergency Stop button or all calibration
points or values will not be saved.
30 Press the enter or previous button on the
LCD screen until EXIT is displayed.Press the
plus button to select YES, then press the
enter button to accept.
31 Turn the key back to the run position and
remove the key from the bypass/recovery key
switch. Insert the key into the main key switch
and turn it to ground controls.
Note: Be sure that the bypass/recovery key switch
is in the run position before attempting to operate
the machine.
32 Wait approximately 20 seconds and turn the
machine off by pressing the red Emergency
Stop button in.
62 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Tip
remove the jumper wire will
result in an unsafe configuration
which will compromise machine
stability. Operating the machine
in this configuration will result in
the machine tipping over,
resulting in death or serious
injury. The jumper wire must be
removed before operating the
machine.
Jib Boom Component s
Before serial number 321:
33 Remove the wire jumper from the 2 pin
connector in the lower left hand area of the
ground control box that was installed in step 6.
Install the connector plug.
-over hazard. Failure to
34 Close the ground control box and install the
door retaining fasteners.
After serial number 320:
35 Remove the fastener that was temporarily
installed. Close the control box door and install
the door retaining fasteners.
Note: When the control box door is closed, the
calibration toggle switch is automatically activated
to exit out of calibration mode.
All models:
36 Pull out the red Emergency Stop button. Start
the engine and lower the boom to the stowed
position. Be sure there are no calibration faults
shown on the display.
Part No. 1268557GT Z®-135/70 63
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Service and Repair Manual October 2018
Boom Component s
1 upper primary boom lif t cylinder lin kage arm
2 primary boom
3 cable track
4 primary extension boom
5 jib boom manifold
6 secondary boom lift cylinder
7 secondary boom cable track (inside of
secondary boom)
8 primary boom lift cylinder
9 number 1 secondary boom tube
10 number 2 secondary boom tube
11 number 3 secondary boom tube
12 lower primary boom lift cylinde r lin kage ar m
13 number 4 secondary boom tube
64 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Component damage hazard.
Cables can be damaged if they
are kinked or pinched.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
b
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Boom Component s
4-1
Primary Boom Cable Track
The primary boom cable track guides the cables
and hoses running up the boom. It can be repaired
link by link without removing the cables and hoses
that run through it. Removing the entire primary
boom cable track is only necessary when
performing major repairs that involve removing the
primary boom.
How to Remove the Primary
Boom Cable Track
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
Note: Perform this procedure with the machine on a
firm, level surface.
Note: Perform this procedure with the boom in the
stowed position.
1 Remove the cover from the lower jib boom
cable track.
2 Tag and disconnect the electrical connectors
inside the lower cable track.
3 Remove the hose and cable clamp retaining
fasteners from lower cable track at the pivot
end of the jib boom. Remove the clamps.
4 Pull the electrical cables out of the lower cable
track that lead to the primary boom.
5 Tag and disconnect the electrical connectors
from the jib boom manifold located at the
platform end of the primary extension boom.
6 Tag, disconnect and plug the two hydraulic
hoses from the jib boom manifold that lead to
the platform manifold. Cap the fittings on the
manifold.
urn skin. Loosen hydraulic
7 Remove the retaining fasteners from the hose
and cable guide at the platform end of the
primary boom. Remove the hose and cable
guide.
8 Tag and disconnect the electrical connector
from the limit switch on the side of the primary
boom. Do not remove the limit switch.
9 Remove the cotter pin from the upper cable
track tube at the platform end of the primary
extension boom.
Note: Always replace the cotter pin with a new one.
Part No. 1268557GT Z®-135/70 65
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Service and Repair Manual October 2018
Crushing hazard. If the upper
and lower cable tracks are not
properly secured together, the
cable track could become
unbalanced and fall when
removed from the machine.
Crushing hazard. The secondary
boom lower end cover could
become unbalanced and fall
when removed from the
secondary boom if not properly
supported and secured to the
lifting device.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Boom Component s
10 Remove the retaining fasteners from the cable
track guide at the platform end of the boom.
Remove the cable track guide from the
machine.
11 Place blocks between the upper and lower
cable tracks and secure the upper and lower
tracks together.
15 Locate the two hydraulic hoses inside the end
of the secondary boom that lead to the primary
boom cable track.
16 Tag, disconnect and plug the hydraulic hoses
from the unions. Cap the fittings on the unions.
12 Remove the hose and cable clamps from the
primary boom lift cylinder.
13 At the counterweight end of the secondary
boom, support and secure the secondary
boom lower end cover to a suitable lifting
device.
14 Remove the cover retaining fasteners and
remove the cover from the end of the
secondary boom.
allow
17 Disconnect the electrical connectors for the
electrical cables that lead to the cable track at
the end of the secondary boom.
18 Pull all hydraulic hoses and electrical cables
that lead to the cable track out of the
secondary boom riser.
19 Attach a lifting strap to each end of the cable
track from an overhead crane for support. Do
not apply any lifting pressure.
66 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Crushing hazard. The primary
boom cable track could become
unbalanced and fall when
removed from the primary boom
if not properly supported by the
overhead crane.
Component damage hazard.
The
damaged if it is twisted.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Boom Component s
20 Remove the mounting fasteners that attach the
lower cable track to the primary boom lift
cylinder.
21 Remove the mounting fasteners that attach the
cable track to the primary boom.
22 Carefully remove the cable track from the
machine and lay it on a structure capable of
supporting it.
boom cable track can be
How to Repai r the Pri mary Boom C able Trac k
How to Repair the Primary Boom
Cable Track
Component damage hazard.
The boom cable track can be
damaged if it is twisted.
Note: A cable track repair kit is available through
the Genie Service Parts Department.
1 Visually inspect the cable track and determine
which 4-link section needs to be replaced.
2 Support the cable track assembly above the
section to be replaced.
3 Carefully remove the snap rings and pins from
each end of the damaged section of cable
track.
4 Remove the retaining fasteners from the upper
black rollers from the 4-link section of cable
track to be replaced. Remove the rollers.
remove the damaged 4-link section of cable
track.
5 Lift up the hoses and cables and carefully
Part No. 1268557GT Z®-135/70 67
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Service and Repair Manual October 2018
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Crushing hazard. The secondary
boom end cover could become
unbalanced and fall when
removed from the secondary
boom if not properly supported
and secured to
Boom Component s
6 Remove the upper rollers from the
replacement section of cable track.
7 Lift up the hoses and cables and carefully
insert the new 4-link section of cable track.
8 Connect the ends of the replacement cable
track section to the existing cable track using
the pins and snap rings.
9 Install the rollers onto the new section of cable
track.
10 Operate the primary boom extend/retract
function through a full cycle to ensure smooth
operation of the new section of cable track.
4-2
Secondary Boom Cable Track
The secondary boom cable track guides the cables
and hoses running up through the inside of the
secondary boom. It can be repaired link by link
without removing the cables and hoses that run
through it. Removal of the secondary boom cable
track is required to repair it.
How to Remove the Secondary
Boom Cable Track
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
1 Working at the counterweight end of the
secondary boom, support and secure the
secondary boom end cover to a suitable lifting
device.
2 Remove the cover retaining fasteners and
remove the cover from the secondary boom.
the lifting device.
3 Working at the platform end of the secondary
boom, support and secure the secondary
boom end cover to a suitable lifting device.
68 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Crushing hazard. The secondary
boom end cover could become
unbalanced and fall when
removed from the secondary
boom if not properly supported
and secured to the lifting device.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Component damage hazard.
Hoses can be damaged if they
are kinked or pinched.
Component damage hazard.
Hoses can be damaged if they
are kinked or pinched.
Boom Component s
4 Remove the cover retaining fasteners and
remove the cover from the secondary boom.
10 Pull the hydraulic hoses just removed through
the turntable bulkhead.
5 Working at the platform end of the secondary
boom, remove the hose and cable U-bolt
fasteners near the upper cable track tube.
6 Working at the platform end of the secondary
boom, remove the upper cable track tube
retaining fasteners. Remove the curved hose
guide.
7 Working at the platform end of the secondary
boom, remove the lower cable track retaining
fasteners.
8 Working at the counterweight end of the
secondary boom, remove the lower cable track
retaining fasteners.
9 Tag, disconnect and plug the hydraulic hoses
from the following ports of the function
manifold: PE, PR, P2, T1, PU and PD. Cap the
fittings on the manifold.
11 Working at the counterweight end of the
secondary boom, tag, disconnect and plug the
hydraulic hoses from the unions that lead to
the cable track.
12 Working at the counterweight end of the
secondary boom, tag and disconnect the
electrical connectors to all of the cables that
lead to the secondary boom cable track.
13 Tag, disconnect and plug the primary boom lift
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
14 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses at the
unions located above the primary boom lift
cylinder. Cap the fittings on the unions.
15 Pull the hydraulic hoses for the primary boom
lift cylinder and extension cylinder out through
the hole in the number 4 secondary boom
tube.
Part No. 1268557GT Z®-135/70 69
16 Working at the platform end of the secondary
boom, place blocks between the upper and
lower cable tracks for support.
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Service and Repair Manual October 2018
Crushing hazard. The secondary
boom cable track could become
unbalanced and fall if not
pro
removed from the machine.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Component damage hazard. The
secondary boom cable track can
be damaged if it is twisted.
Component damage hazard.
The boom cable track can be
damaged if it is twisted.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
Boom Component s
17 Working at the counterweight end of the
secondary boom, attach a lifting strap from an
overhead crane to the secondary boom cable
track.
18 Carefully pull the secondary boom cable track
out of the counterweight end of the boom.
19 Remove the secondary boom cable track from
the machine and place it on a structure
capable of supporting it.
How to Repai r the Sec ondary Boo m Cable Tr ack
How to Repair the Secondar y
Boom Cable Track
Note: A cable track repair kit is available through
the Genie Service Parts Department.
perly supported when
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
1 Remove the secondary boom cable track.
Refer to Repair Procedure, How to Remove the Secondary Boom Cable Track.
2 Visually inspect the cable track and determine
which 4-link section needs to be replaced.
3 Carefully remove the snap rings and pins from
each end of the damaged section of cable
track.
4 Remove the retaining fasteners from the upper
black rollers from the 4-link section of cable
track to be replaced. Remove the rollers.
5 Lift up the hoses and cables and carefully
remove the damaged 4-link section of cable
track.
Note: If the section of cable track being replaced
has clamps or wear pads, those items will need to
be transferred to the replacement section of cable
track.
70 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Comp
Cables and hoses can be
damaged if they are kinked or
pinched.
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Boom Components
6 Remove the upper rollers from the
replacement section of cable track.
7 Lift up the hoses and cables and carefully
insert the new 4-link section of cable track.
onent damage hazard.
4-3
Primary Boom
How t o R emove the Primary
Boom
8 Connect the ends of the replacement cable
track section to the existing cable track using
the pins and snap rings.
9 Install the rollers onto the new section of cable
track.
10 Install the secondary boom cable track into the
secondary boom.
11 Operate the secondary boom up/extend and
down/retract functions through a full cycle to
ensure smooth operation of the new section of
cable track.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
Note: Perform this procedure with the boom in the
stowed position.
1 Remove the platform.
2 Remove the platform mounting weldment and
the platform rotator. Refer to Repair
Procedure, How to Remove the Platform
Rotator.
3 Remove the jib boom. Refer to Repair
Procedure, How to Remove the Jib Boom.
Part No. 1268557GT Z®-135/70 71
Note: When the jib boom is installed, the jib boom
angle sensor will need to be calibrated. Refer to
Repair Procedure, How to Calibrate the Jib Boom Bellcrank Angle Sensor.
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Service and Repair Manual October 2018
Bodily injury hazard. Sprayi ng
hydraulic
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Boom Component s
4 Remove the primary boom cable track. Refer
to repair procedure, How to Remove the Cable
Track.
10 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses. Cap the
fittings on the cylinder.
5 Remove the end cover from the pivot end of
the primary boom.
6 Remove the limit switch mounting fasteners
from the limit switch on the ground controls
side of the primary boom. Do not disconnect
the wiring. Remove the limit switch.
7 Disconnect the electrical connector from the
primary boom angle sensor.
Note: The primary boom angle sensor is located
inside the primary boom at the pivot end.
8 Remove the primary boom angle sensor
bracket mounting fasteners and remove the
primary boom angle sensor from the primary
boom. Do not remove the angle sensor from
the bracket. Note the location of the springs.
Do not lose the springs.
Note: There is one spring inside the primary boom
pivot pin and one inside the angle sensor.
Note: When the primary boom is installed, the
primary boom angle sensor will need to be
calibrated. Refer to Repair Procedure, How to Calibrate the Primary Boom Angle Sensor.
9 Remove the hose and cable guide fasteners at
the primary boom pivot pin. Remove the hose
and cable guide.
oil can penetrate and
11 Place blocks under both ends of the primary
boom lift cylinder for support.
12 Attach a lifting strap from an overhead crane to
the rod end of the primary boom lift cylinder.
13 Remove the pin retaining fasteners from the
primary boom lift cylinder rod-end pivot pin.
14 Use a soft metal drift to remove the rod-end
pivot pin. Rest the rod end of the primary boom
lift cylinder on the blocks.
15 Support both upper primary boom lift cylinder
linkage arms with a suitable lifting device. Do
not apply any lifting pressure.
16 Remove the pin retaining fasteners from the
upper primary boom lift cylinder linkage arm
pivot pin where it connects to the primary
boom.
72 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Crushing hazard. The upper
primary boom lift cy
arms could fall if not properly
supported when the pivot pins are
removed.
Crushing hazard. The primary
boom could become unbalanced
and fall when re
machine if not properly attached
to the overhead crane.
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Boom Component s
17 Use a soft metal drift to tap the pin halfway out
and lower one of the linkage arms down. Tap
the pin in the other direction and lower the
other linkage arm down.
linder linkage
4-4
Primary Boom Lift Cylinder
The primary boom lift cylinder raises and lowers the
primary boom. The primary boom lift cylinder is
equipped with a counterbalanc e valve to prevent
movement in the event of a hydraulic line failure.
18 Attach a 5 ton / 5000 kg overhead crane to
both ends of the primary boom. Do not apply
any lifting pressure.
19 Remove the pin retaining fasteners from the
primary boom pivot pins.
20 Use a soft metal drift to remove the primary
boom pivot pins.
21 Carefully remove the primary boom from the
machine and place it on a structure capable of
supporting it.
moved from the
How to Remove the Primary
Boom Lift Cylinder
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
Note: Perform this procedure with the boom in the
stowed position.
1 Remove the hose and cable clamps from the
primary boom lift cylinder.
Part No. 1268557GT Z®-135/70 73
2 Remove the cable track retaining fasteners at
the primary boom lift cylinder.
3 Place blocks under both ends of the primary
boom lift cylinder. Place another block under
the cylinder linkage arms under the primary
boom lift cylinder barrel-end pivot pin.
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Service and Repair Manual October 2018
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
conne
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Crushing haz
cylinder may become
unbalanced and fall if it is not
properly supported when it is
removed from the machine.
Crushing hazard. The primary
boom lift cylinder linkage arms
may fall if not properly
supported when the barrel
pivot
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attemptin
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Boom Component s
4 Tag, disconnect and plug the primary boom lift
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
4-5
Secondary Boom Lift Cylinder
ctions very slowly to allow
5 Attach a lifting strap from an overhead crane to
the rod end of the primary boom lift cylinder.
Do not apply any lifting pressure.
6 Remove the pin retaining fasteners from the
primary boom lift cylinder rod-end pivot pin.
Use a soft metal drift to remove the pin and
rest the cylinder on the block.
7 Attach a lifting strap from a second overhead
crane to the barrel end of the primary boom lift
cylinder. Do not apply any lifting pressure.
8 Remove the primary boom lift cylinder
barrel-end pivot pin retaining fasteners.
9 Use a soft metal drift to remove the barrel-end
pivot pin. Carefully remove the primary boom
lift cylinder from the machine.
ard. The boom lift
How to Remove the Secondary
Boom Lift Cylinder
g
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
1 Tag, disconnect and plug the hydraulic hoses
from the secondary boom lift cylinder. The
hoses can be accessed from under the
turntable.
74 Z®-135/70 Part No. 1268557GT
pin is removed.
-end
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October 2018 Service and Repair Manual
Crushing hazard. Failure to install
the bolt into the engine pivot plate
to secure it from moving could
result in death or serious injury.
Component damage hazard.
The engine must not be started
with the hydraulic tank shut
valves in the closed position or
component damage will occur. If
the tank valves are closed,
remove the key from the key
switch
inform personnel of the
condition.
Boom Component s
2 Remove the engine pivot plate retaining
fastener. Swing the engine pivot plate out
away from the machine.
anchor hole to secure the engine pivot plate
from moving.
5 Remove the retaining fasteners from the fixed
turntable cover at the ground controls side of
the machine. Remove the fixed turntable cover
from the machine.
6 Tag, disconnect and plug the fuel hoses from
the fuel tank. Clean up any fuel that may have
spilled.
7 Close the two hydraulic tank shut-off valves at
the hydraulic tank.
-off
and tag the machine to
8 Remove the drain plug from the hydraulic tank
and completely drain the tank into a container
of suitable capacity. Refer to Specifications,
Fluid Capacity Specifications.
9 Tag, disconnect and plug the two suction
hoses from the hydraulic tank.
10 Tag, disconnect and plug the two supply hoses
for the auxiliary power units. Cap the fittings on
the hydraulic tank.
11 Tag, disconnect and plug the hydraulic hose
from the drive motor case drain filter at the
hydraulic tank. Cap the fitting on the hydraulic
tank.
Part No. 1268557GT Z®-135/70 75
12 Tag, disconnect and plug the hydraulic hose at
the return filter. Cap the fitting on the return
filter housing.
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Service and Repair Manual October 2018
Crushing hazard. The turnta
cover may become unbalanced
and fall if not properly supported
and secured to a suitable lifting
device.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rin
watches and other jewelry.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious inju
watches and other jewelry.
Crushing hazard. The battery
box could become unbalanced
and fall when removed from the
machine if not properly
supported.
Bodily injury hazard. Batteries
contain acid. Avoid spilling or
contacting battery acid.
Neutralize battery acid spill s with
baking soda and water.
Crushing hazard. Th
tank could become unbalanced
and fall if not properly supported
when removed from the
machine.
Boom Component s
13 Remove the turntable cover using a suitable
lifting device.
ble
14 Remove the ground control box mounting
fasteners. Move the ground control box out of
the way.
15 Remove the hydraulic tank retaining fasteners.
19 Attach an overhead crane or similar lifting
device to the battery box for the auxiliary
power unit batteries.
20 Remove the battery box retaining fasteners
and carefully remove the battery box from the
machine.
16 Remove the cover from the auxiliary power
unit batteries.
17 Tag and disconnect the cables from the
auxiliary power unit batteries.
gs,
18 Tag and disconnect the cables from the engine
starting/controls battery located on the engine
side of the machine.
ry. Remove all rings,
21 Support the hydraulic tank with 2 lifting straps.
Place one lifting strap at each end of the tank
and attach the lifting straps to an appropriate
lifting device.
22 Remove the hydraulic tank from the machine.
e hydraulic
23 Place a block under the secondary boom lift
cylinder for support.
76 Z®-135/70 Part No. 1268557GT
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October 2018 Service and Repair Manual
Crushing hazard. The boom
assembly can fall if not properly
supported by the overhead
crane.
Component damage hazard.
Hoses and cables ca
damaged if the barrel end of the
secondary boom lift cylinder is
allowed to fall when the
barrel
Crushing hazard. The secondary
boom lift cylinder
unbalanced and fall when
removed from the machine if not
properly attached to the
overhead crane.
Component damage hazard.
Hoses and cables can be
damaged if the secondary boom
lift cylinder is pulled across them.
Boom Component s
24 Remove the secondary boom lift cylinder
rod-end pivot pin retaining fasteners. Use a
soft metal drift to remove the pin through the
access holes in the turntable bulkheads.
25 Attach an overhead crane with a minim um
capacity of 7 tons / 7000 kg to the
counterweight end of the secondary boom.
26 Raise the boom assembly with the overhea d
crane approximately 20 feet / 6 m.
29 Use a slide hammer to remove the barrel-end
pivot pin.
n become
-end pivot pin is removed.
30 Carefully remove the secondary boom lift
cylinder from the machine.
27 Remove the secondary boom lift cylinder
barrel-end pivot pin retaining fasteners. Do not
remove the pin.
28 Attach a lifting strap from a second overhead
crane to each end of the secondary boom lift
cylinder.
Note: Protect the hoses and cables underneath the
cylinder from damage.
could become
Part No. 1268557GT Z®-135/70 77
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Service and Repair Manual October 2018
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could resu
serious injury and significant
component damage. Dealer
service is strongly recommended.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Crushing hazard. The extension
cylinder could become
unbalanced and fall when
removed from primary boom
extension tube if not properly
supported.
Boom Component s
4-6
Primary Boom Extension Cylinder
The primary boom extension cylinder extends and
retracts the primary boom extension tube.The
primary boom extension cylinder is equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line failure.
How to Remove the Primary
Boom Extension Cylinder
lt in death or
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
2 Remove the access cover from the pivot end of
the primary boom.
3 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses. Cap the
fittings on the cylinder.
4 At the platform end, remove the external snap
rings from the extension cylinder rod-end pivot
pin. Use a soft metal drift to remove the pin.
5 Remove the extension cylinder retainers from
the saddle blocks.
6 Attach a lifting strap from an overhead crane to
the barrel end of the primary boom extension
cylinder.
7 Using the overhead crane, lift the extension
cylinder to clear the saddle blocks.
8 Support and slide the primary boom extension
cylinder out of the primary boom and place it
on a structure capable of supporting it.
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
1 Extend the primary boom until the primary
boom extension cylinder rod-end pivot pin is
accessible in the primary boom extension
tube.
78 Z®-135/70 Part No. 1268557GT
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
Note: Note the length of the cylinder after removal.
The cylinder must be at the same length for
installation.
Page 93
October 2018 Service and Repair Manual
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
ser
component damage. Dealer
service is strongly recommended.
Crushing hazard. The secondary
boom end cover could become
unbalanced and fall when
removed from the secondary
boom if not properly supported
and secured to the lifting device.
Bodily injury hazard. Sprayi ng
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Boom Component s
4-7
Secondary Boom Extension
Cylinders
The secondary boom extension cylinders extend
and retract the secondary boom. The secondary
boom extension system consists of 3 hydraulic
cylinders and each are equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line failure.
How to Remove the Secondary
Boom Extension Cylinders
ious injury and significant
1 Raise the primary boom approximately 10 feet
/ 3 m. Turn the machine off.
2 Working at the platform end of the secondary
boom, support and secure the secondary
boom end cover to a suitable lifting device.
3 Remove the cover retaining fasteners and
remove the cover from the secondary boom.
4 Remove the retaining fasteners from both
secondary boom extend limit switches and
remove the limit switches. Do not disconnect
the wiring.
Note: Label the location of each limit switch as they
are not the same and their mounting locations
cannot be exchanged.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque Specifications.
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
Part No. 1268557GT Z®-135/70 79
5 Tag, disconnect and plug all hydraulic hoses
for the 3 secondary boom extension cylinders.
Cap the fittings on the cylinder.
6 Remove the upper extension cylinder retainers
from the saddle blocks.
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Service and Repair Manual October 2018
Crushing hazard. The extension
cylinder could fall when removed
from the secondary boom if not
properly supported.
Boom Component s
7 Attach a lifting strap from an overhead crane to
the rod end of the upper extension cylinder.
8 Using the overhead crane, lift the extension
cylinder to clear the saddle blocks.
9 Support and slide the upper extension cylinder
out of the secondary boom and place it on a
structure capable of supporting it.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
Note: When installing the middle and upper
secondary boom extension cylinders, be sure the
grooved wear pads are correctly aligned with the
channels on the top of the cylinders.
10 Repeat steps 6 through 9 for the remaining
secondary boom extension c ylinders .
Note: The secondary boom extension cylinders
must be installed in the same order they were
removed.
The primary boom angle sensor is used to limit the
angle of the primary boom relative to the angle of
the secondary boom and gravity.
How to Replace the Primary
Boom Angle Sensor
Note: Perform this procedure with the machine on a
firm, level surface with the boom in the stowed
position.
1 Remove the retaining fasteners from the boom
end cover at the pivot end of the primary boom.
Remove the cover from the machine.
2 Locate the primary boom angle sensor inside
the primary boom at the boom pivot pin.
3 Disconnect the electrical connector from the
sensor.
4 Remove the angle sensor mounting bracket
retaining fasteners.
7 Install the new angle sensor onto the mounting
bracket.
8 Install one spring, removed in step 5, into the
hex-shaped hole in the angle sensor. Install
the other spring into the hex-shaped hole in the
center of the boom pivot pin.
9 Insert the hex-shaped key into the angle
sensor.
10 Align the side of the sensor with flat area of the
boom pivot pin as shown below while holding
the bracket away from key insertion.
5 Remove the angle sensor and bracket
assembly. Do not lose the two springs or the
hex-shaped key.
6 Remove the sensor retaining fasteners from
the mounting bracket. Remove the angle
sensor.
Note: Note the sensor orientation on the bracket
during removal so the new sensor will be installed in
the same position.
1 flat area
2 angle sensor
3 hex-shaped hole
Part No. 1268557GT Z®-135/70 81
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Service and Repair Manual October 2018
Boom Component s
11 While holding the hex-shaped key in position,
rotate the angle sensor mounting bracket
clockwise until it aligns with the machined
pocket. Do not allow the key to rotate while
holding it.
12 Insert the hex-shaped key into the boom pivot
pin and the bracket into the machined pocket.
How to Cali brate the Pr imary Bo om Angle Sens or
How to Calibrate the Primary
Boom Angle Sensor
The primary boom angle sensor is used to limit the
angle of the primary boom relative to the angle of
the secondary boom and gravity.
Note: Be sure the hex-shaped key remains
engaged in the sensor.
13 Install the angle sensor bracket retaining
fasteners.
14 Connect the electrical connector to the new
sensor.
15 Install the primary boom end cover.
16 Calibrate the primary boom angle sensor.
Refer to Repair Procedure, How to Calibrate
the Primary Boom Angle Sensor.
The primary boom maximum angle is gradually
reduced as the downhill slope (positi ve degre e Y
axis) is increased. A flat level surface of 0° allows
the primary boom maximum operational angle to
reach 68°. On a 5° downhill slope the primary boom
maximum operational angle is reduced to 43°.
0° slope, 68° boom angle 5° slope, 43° boom angle
82 Z®-135/70 Part No. 1268557GT
Page 97
October 2018 Service and Repair Manual
Tip
properly calibrate the machine
could cause the machine to tip
over resulting in death or serious
injury.
Boom Component s
Note: If the axle sensor or secondary boom angle
sensor have been removed or replaced, or the
turntable level sensor has been replaced, they must
be calibrated first. Refer to Repair Procedures, How
to Calibrate the Axle Angle Sensors or How to
Calibrate the Secondary Boom Angle Sensor or
How to Calibrate the Turntable Level Sensor.
-over hazard. Failure to
6 Point Calibration procedure
Note: Use this procedure for software versions
before 4.01.
Note: For the 2 Point Calibration procedure,
proceed to step 37.
1 Push in the ground controls red Emergency
Stop button to the off position. Do not turn the
key switch to the off position.
2 Turn the key switch to ground controls.
Note: For software versions 4.01 and higher, use
the 2 Point Calibration procedure. For software
versions before 4.01, use the 6 Point Calibration
procedure. The software version is displayed on the
LCD screen when the red Emergenc y Stop button
is pulled out to the on position.
Note: A digital level will only be required to perf orm
the 6 Point Calibration procedure.
Note: A kit is available through Genie Product
Support (Genie part number 58351). This kit
includes a digital level with a magnetic base and
cable harnesses.
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
Note: Perform this procedure with the machine on a
firm, level surface with the booms in the fully stowed
position, in the drive enable zone and the axles fully
extended.
3 Open the ground control box.
Before serial number 321:
4 Locate the 2 pin connector in the lower left
hand area of the ground control box.
5 Remove the connector plug and insert a
jumper wire between the two pins of the
connector.
After serial number 320:
6 Locate the calibration toggle switch at the top
of the ground control box. Activate calibration
mode by moving the toggle switch in the left
direction.
7 Temporarily install a control box door retaining
fastener between the door and the box to
prevent the control box door from moving the
toggle switch while calibrating the machine.
All models:
8 Remove the key from the main key switch.
Insert the key into the bypass/recovery key
switch and turn it to the bypass position.
Note: The angle sensor calibration values will not
be saved correctly unless the key switch is in the
bypass position and the calibration toggle switch is
activated.
Part No. 1268557GT Z®-135/70 83
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Service and Repair Manual October 2018
Boom Component s
9 Press and hold the enter button on the ground
control panel while pulling out the ground
controls red Emergency Stop button to the on
position. Hold the enter button for
approximately 5 seconds and then release it.
10 Enter sensor calibration mode by pressing the
buttons at the ground controls in the following
sequence: (plus)(enter)(enter)(plus).
17 Press and hold a function enable/speed select
button and the primary boom down button and
lower the primary boom down until the digital
level displays -50 degrees.
18 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
11 Press the enter or previous button on the
LCD screen until DELETE PRIMARY BOOM
ANGLE SENSOR CALIBRATION is displayed.
12 Press the plus button to select YES, then
press the enter button to accept.
13 Place a digi tal lev el t hat has be en cal i brat ed t o
gravity on top of the primary boom and note
the angle displayed on the digital level.
14 At the PRIMARY BOOM ANGLE TO GRAVITY
0.0 DEG screen, press the plus button or
minus button to adjust the display to the exact
value show n on the digi tal lev el, then pr ess the
enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
15 Start the engine from the ground controls.
Note: If the system exits out of calibration mode
when the engine is started, repeat step 8 and then
continue with step 14.
Note: Be sure the number entered at the ground
controls is a negative number.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
19 Press and hold a function enable/speed select
button and the primary boom up button until
the digital level displays -20 degrees.
20 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: Be sure the number entered at the ground
controls is a negative number.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
16 Fully raise the secondary boom. The boom is
fully raised when the cylinder is fully extended
and the boom stops moving.
84 Z®-135/70 Part No. 1268557GT
21 Press and hold a function enable/speed select
button and the primary boom up button until
the digital level displays 10 degrees.
Page 99
October 2018 Service and Repair Manual
result in an unsafe configuration
which will compromise machine
stability. Operating the machine
in this configuration will result in
injury. The jumper wire must be
Boom Component s
22 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
23 Press and hold a function enable/speed select
button and the primary boom up button until
the digital level displays 40 degrees.
24 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
25 Press and hold a function enable/speed select
button and the primary boom up button until
the primary boom is fully raised. The boom is
fully raised when the cylinder is fully extended
and the boom stops moving. The angle will be
70 degrees.
26 At the ground controls, press the plus button
or minus button to adjust the display to the
exact value shown on the digital level and
press the enter button.
Note: If the measured angle already matches the
angle shown on the display at the ground controls,
press the plus button or minus button to change
the angle and then change back to the measured
value. The system must detect a change in
displayed value to record the calibrated value.
27 Press and hold the engine start button for
approximately 5 seconds to shut off the engine
and to save the calibration settings.
Note: Do not turn the engine off with the key switch
or red Emergency Stop button or all calibration
points or values will not be saved.
28 Press the enter or previous button on the
LCD screen until EXIT is displayed.
29 Press the plus button to select YES, then
press the enter button to accept.
30 Turn the key back to the run position and
remove the key from the bypass/recovery key
switch. Insert the key into the main key switch
and turn it to ground controls.
Note: Be sure that the bypass/recovery key switch
is in the run position before attempting to operate
the machine.
31 Wait approximately 20 seconds and turn the
machine off by pressing the red Emergency
Stop button in.
Before serial number 321
32 Remove the wire jumper from the 2 pin
connector in the lower left hand area of the
ground control box that was installed in step 5.
Install the connector plug.
Tip-over hazard. Failure to
remove the jumper wire will
the machine tipping over,
resulting in death or serious
removed before operating the
machine.
33 Close the ground control box and install the
door retaining fasteners.
Part No. 1268557GT Z®-135/70 85
Page 100
Service and Repair Manual October 2018
Boom Component s
After serial number 320:
34 Remove the fastener that was temporarily
installed. Close the control box door and install
the door retaining fasteners.
Note: When the control box door is closed, the
calibration toggle switch is automatically activated
to exit out of calibration mode.
All models:
35 Pull out the red Emergency Stop button. Start
the engine and lower the boom to the stowed
position. Be sure there are no calibration faults
shown on the display.
36 Perform a primary boom angle test. Refer to
Maintenance Procedure in the appropriate
Service or Maintenance Manual, Test the
Primary Boom Angle Sensor.
2 Point Calibration procedure
Note: Use this procedure for software versions
4.01 and higher.
37 Push in the ground controls red Emergency
Stop button to the off position. Do not turn the
key switch to the off position.
38 Turn the key switch to ground controls.
39 Open the ground control box.
40 Locate the calibration toggle switch at the top
of the ground control box. Activate calibration
mode by moving the toggle switch in the left
direction.
41 Temporarily install a control box door retaining
fastener between the door and t he box to
prevent the control box door from moving the
toggle switch while calibrating the machine.
42 Remove the key from the main key switch.
Insert the key into the bypass/recovery key
switch and turn it to the bypass position.
43 Note: The angle sensor calibration values will
not be saved correctly unless the key switch is
in the bypass position and the calibration
toggle switch is activated.
44 Press and hold the enter button on the ground
control panel while pulling out the ground
controls red Emer genc y Stop butto n to the on
position. Hold the enter button for
approximately 5 seconds and then release it.
45 Enter sensor calibration mode by pressing the
buttons at the ground controls in the following
sequence: (plus)(enter)(enter)(plus).
46 Press the enter or previous button on the
LCD screen until DELETE PRIMARY BOOM
ANGLE SENSOR CALIBRATION is displayed.
86 Z®-135/70 Part No. 1268557GT
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