Read, understand and obey the safety rules and
operating instructions in the
Bi-Energy and
Manual
Genie Z-45/25J Bi-Energy Operator's
before attempting any maintenance or
repair procedure.
This manual provides detailed scheduled
maintenance information for the machine owner and
user. It also provides troubleshooting fault codes
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.
Genie Z-45/25
July 2004
Technical Publications
Genie Industries 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.
106488 Rev A July 2004
Second Edition, First Printing
"Genie" and "Z" are registered trademarks of
Genie Industries in the USA and many other
countries.
Printed on recycled paper
Printed in U.S.A.
ii
Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-EnergyPart No. 106488
Page 3
July 2004
Safety Rules
Danger
Failure to obey the instructions and safety rules
in this manual and the
Genie Z-45/25J Bi-Energy Operator’s Manual
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.
Genie Z-45/25 Bi-Energy and
will
Do Not Perform Maintenance
Unless:
You are trained and qualified to perform
maintenance on this machine.
You read, understand and obey:
- manufacturer’s instructions and safety rules
- employer’s safety rules and worksite
regulations
- applicable governmental regulations
You have the appropriate tools, lifting
equipment and a suitable workshop.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy
iii
Page 4
SAFETY RULES
July 2004
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.
Read each procedure thoroughly. This
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 avoid possible injury or death.
Used to indicate the presence of
an imminently hazardous situation
which, if not avoided, will result in
death or serious injury.
Used to indicate the presence of a
potentially hazardous situation
which, if not avoided, could result
in death or serious injury.
Be sure to wear protective eye wear and
other protective clothing if the situation
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-toed
shoes.
Workplace Safety
Be sure to keep sparks, flames and
lighted tobacco away from flammable and
combustible materials like battery gases
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 into machine components and
cause damage.
With safety alert symbol—used to
indicate the presence of a
potentially hazardous situation
which, if not avoided, may cause
minor or moderate injury.
Without safety alert symbol—used
to indicate the presence of a
potentially hazardous situation
which, if not avoided, may result in
property damage.
Used to indicate operation or
maintenance information.
Be sure that your workshop or work area is
properly ventilated and well lit.
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 capacity.
Be sure that fasteners intended for one
time use (i.e., cotter pins and self-locking
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 container.
Please be environmentally safe .
iv
Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-EnergyPart No. 106488
Page 5
August 2004
Introduction
Table of Contents
Important Information ...................................................................................................
Section 1Safety Rules
General Safety Rules ..................................................................................................
Chevron Rykon MV oil is fully compatible and
mixable with Shell Donax TG (Dexron III) oils.
Genie specifications require hydraulic oils which are
designed to give maximum protection to hydraulic
systems, have the ability to perform over a wide
temperature range, and have a minimum viscosity index
rating of 150. They should provide excellent antiwear,
oxidation, corrosion inhibition, seal conditioning, and
foam and aeration suppression properties.
Optional fluids
BiodegradablePetro Canada Premium ECO 46
Statoil Hydra Way Bio Pa 32
BP Biohyd SE-S
Fire resistantUCON Hydrolube HP-5046
Quintolubric 822
SPECIFICATIONS
Function pump
Type:Fixed displacement gear pump
Displacement0.183 cu in
3 cc
Flow rate2.1 gpm
7.9 L/min
Hydraulic tank10 micron with
return filter25 psi / 1.7 bar bypass
Function manifold
Function relief valve pressure3200 psi
220.6 bar
Primary boom down2300 psi
relief valve pressure158.6 bar
(before serial number 11819)
Secondary boom down1800 psi
relief valve pressure124 bar
(before serial number 22566)
Secondary boom down2100 psi
relief valve pressure145 bar
(after serial number 22565)
Mineral basedShell Tellus T32
Shell Tellus T46
Chevron Aviation A
Genie specifications require
additional equipment and special
Platform level flow regulator0.1 gpm
(before serial number 20380)0.38 L/min
Platform level flow regulator0.6 gpm
(after serial number 20379)2.27 L/min
Jib boom/platform rotate flow regulator0.6 gpm
(before serial number 22566)2.27 L/min
installation instructions for the
approved optional fluids. Consult
the Genie Industries Service
Department before use.
Jib boom/platform rotate flow regulator0.4 gpm
(after serial number 22565)1.5 L/min
Auxiliary pump
Type:fixed displacement gear pump
Displacement0.5 gpm
1.9 L/min
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy2 - 3
Page 20
Section 2 • SpecificationsJuly 2004
SPECIFICATIONS
Manifold Component
Specifications
Plug torque
SAE No. 236 in-lbs / 4 Nm
SAE No. 410 ft-lbs / 13 Nm
SAE No. 614 ft-lbs / 19 Nm
SAE No. 838 ft-lbs / 51 Nm
SAE No. 1041 ft-lbs / 55 Nm
SAE No. 1256 ft-lbs / 76 Nm
Valve Coil Resistance Specification
DescriptionSpecification
Solenoid valve, 3 position 4 way, 20V DC25 to 29 Ω
(schematic items E, H, J, K, L, M, CC, DD,
EE, FF, HH, II, BB, BC, BD, BE, BF, BG, CB,
CD, CE, CF and CH)
Your machine is equipped with Parker Seal-Lok®
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.
SAE O-ring Boss Port
(tube fitting - installed into Aluminum)
SAE Dash sizeTorque
-411 ft-lbs / 14.9 Nm
-623 ft-lbs / 31.2 Nm
-840 ft-lbs / 54.2 Nm
-1069 ft-lbs / 93.6 Nm
-1293 ft-lbs / 126.1 Nm
-16139 ft-lbs / 188.5 Nm
-20172 ft-lbs / 233.2 Nm
-24208 ft-lbs / 282 Nm
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.
The O-rings used in the Parker
Seal Lok® fittings and hose ends
are custom-size O-rings. They are
not standard SAE size O-rings.
They are available in the O-ring
field service kit (Genie part
number 49612).
2 Lubricate the O-ring before installation.
3 Be sure that the face seal O-ring 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 per given size as shown in the table.
6 Operate all machine functions and inspect the
hoses and fittings and related components to
confirm that there are no leaks.
SAE O-ring Boss Port
(tube fitting - installed into Steel)
SAE Dash sizeTorque
-416 ft-lbs / 21.7 Nm
-635 ft-lbs / 47.5 Nm
-860 ft-lbs / 81.3 Nm
-10105 ft-lbs / 142.4 Nm
-12140 ft-lbs / 190 Nm
-16210 ft-lbs / 284.7 Nm
-20260 ft-lbs / 352.5 Nm
-24315 ft-lbs / 427.1 Nm
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy2 - 7
July 2004Section 3 • Scheduled Maintenance Procedures
Scheduled Maintenance Procedures
About This Section
This section contains detailed procedures for each
scheduled maintenance inspection.
Each procedure includes a description, safety
warnings and step-by-step instructions.
Observe and Obey:
Maintenance inspections shall be completed by
a person trained and qualified on the
maintenance of this machine.
Scheduled maintenance inspections shall be
completed daily, quarterly, six months, annually
and every 2 years as specified on the
Maintenance Inspection Report.
Failure to properly complete each
inspection when required may
cause death, serious injury or
substantial machine damage.
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating machine.
Keep records on all inspections for three years.
Unless otherwise specified, perform each
procedure with the machine in the following
configuration:
· Machine parked on a firm, level surface
· Boom in the stowed position
· Turntable rotated with the boom between
the non-steer wheels
· Turntable secured with the turntable
rotation lock
Symbols Legend
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 death.
Used to indicate the presence of
an imminently hazardous situation
which, if not avoided, will result in
death or serious injury.
Used to indicate the presence of a
potentially hazardous situation
which, if not avoided, could result
in death or serious injury.
With safety alert symbol—used to
indicate the presence of a
potentially hazardous situation
which, if not avoided, may cause
minor or moderate injury.
Without safety alert symbol—used
to indicate the presence of a
potentially hazardous situation
which, if not avoided, may result in
property damage.
Used to indicate operation or
maintenance information.
Indicates that a specific result is expected after
performing a series of steps.
· Key switch in the off position with the
key removed
· Wheels chocked
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 1
Page 26
SCHEDULED MAINTENANCE PROCEDURES
July 2004Section 3 • Scheduled Maintenance Procedures
Maintenance Symbols Legend
The following symbols have been
used in this manual to help
communicate the intent of the
instructions. When one or more of
the symbols appear at the
beginning of a maintenance
procedure, it conveys the meaning
below.
Indicates that tools will be required to
perform this procedure.
Indicates that new parts will be required
to perform this procedure.
Indicates that a cold motor, pump or
engine will be required to perform this
procedure.
Maintenance Schedule
There are five types of maintenance inspections
that must be performed according to a schedule—
daily, quarterly, six months, annual, and two year.
The
Scheduled Maintenance Procedures Section
and the
Maintenance Inspection Report
have been
divided into five subsections—A, B, C, D and E.
Use the following chart to determine which
group(s) of procedures are required to perform a
scheduled inspection.
InspectionChecklist
Daily or every 8 hoursA
Quarterly or every 250 hoursA + B
Six months or every 500 hoursA + B + C
Annual or every 1000 hoursA + B + C + D
Two year or every 2000 hoursA + B + C + D + E
Indicates that a warm motor, pump or
engine will be required to perform this
procedure.
Indicates that dealer service will be
required to perform this procedure.
Maintenance Inspection Report
The maintenance inspection report contains
checklists for each type of scheduled inspection.
Make copies of the
Maintenance Inspection Report
to use for each inspection. Store completed forms
for three years.
July 2004Section 3 • Scheduled Maintenance Procedures
Fundamentals
It is the responsibility of the dealer to perform the
Pre-delivery Preparation.
The Pre-delivery Preparation is performed prior to each
delivery. The inspection is designed to discover if anything
is apparently wrong with a machine before it is put into
service.
A damaged or modified machine must never be used. If
damage or any variation from factory delivered condition is
discovered, the machine must be tagged and removed
from service.
Repairs to the machine may only be made by a qualified
service technician, according to the manufacturer's
specifications.
Scheduled maintenance inspections shall be performed by
qualified service technicians, according to the
manufacturer's specifications and the requirements listed
in the responsibilities manual.
Instructions
Use the operator’s manual on your machine.
The Pre-delivery Preparation consists of completing the
Pre-operation Inspection, the Maintenance items and the
Function Tests.
Use this form to record the results. Place a check in the
appropriate box after each part is completed. Follow the
instructions in the operator’s manual.
If any inspection receives an N, remove the machine from
service, repair and re-inspect it. After repair, place a check
in the R box.
Legend
Y = yes, completed
N = no, unable to complete
R = repaired
Comments
Genie Industries USA
18340 NE 76th Street
PO Box 97030
Redmond, WA 98073-9730
(425) 881-1800
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
Checklist A Procedures
A-1
Perform Pre-operation Inspection
Completing a pre-operation inspection is essential
to safe machine operation. The pre-operation
inspection is a visual inspection performed by the
operator prior to each work shift. The inspection is
designed to discover if anything is apparently
wrong with a machine before the operator performs
the function tests. The pre-operation inspection
also serves to determine if routine maintenance
procedures are required.
Complete information to perform this procedure is
available in the
Genie Z-45/25J Bi-Energy Operator's Manual
your machine.
Genie Z-45/25 Bi-Energy and
on
A-2
Check for Fuel Leaks
Failure to detect and repair fuel leaks will result in
an unsafe condition. An explosion or fuel fire may
cause death or serious injury.
Explosion and fire hazard. Engine
fuels are combustible. Inspect the
machine in an open, wellventilated area away from heaters,
sparks, flames and lighted
tobacco. Always have an
approved fire extinguisher within
easy reach.
1 Perform a visual inspection around the areas
listed below.
· Fuel tank, shutoff valve (if equipped),
hoses and fittings, fuel filter, fuel injection
pump and fuel injectors
Explosion and fire hazard. If a fuel
leak is discovered, keep any
additional personnel from entering
the area and do not operate the
machine. Repair the leak
immediately.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 7
Page 32
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST A PROCEDURES
A-3
Check for Hydraulic Leaks
Detecting hydraulic fluid leaks is essential to
operational safety and good machine performance.
Undiscovered leaks can develop into hazardous
situations, impair machine functions and damage
machine components.
1 Inspect for hydraulic oil puddles, dripping or
residue on or around the following areas:
· Hydraulic tank—filter, fittings, hoses and
turntable surface
· Engine compartment—hydraulic power unit,
auxiliary power unit, pumps, suction filter,
fittings, hoses, and turntable surface
· All hydraulic cylinders
· All hydraulic manifolds
· Z-45/25: Primary and secondary booms
· Z-45/25J: Primary, secondary and jib booms
· The underside of the turntable
· The underside of the drive chassis
· Ground area under the machine
REV A
A-4
Check the Generator Belts and
Pulleys
Maintaining the generator belts and the pulleys is
essential to good engine performance and service
life. The generator will not operate properly with
loose or defective belts and continued use may
cause component damage.
Bodily injury hazard. Do not
inspect while the engine
is running. Remove the key to
secure from operation.
Bodily injury hazard. Beware of
hot engine components. Contact
with hot engine components may
cause severe burns.
Charging the batteries with the
engine does not fully charge the
batteries. Periodically, use the AC
battery charger to fully charge the
batteries.
1 Be sure that all fasteners and cables on the
generator are tight.
2 Be sure that the pulley mounting fasteners are
tight and that the pulleys show no signs of
damage or unusual wear.
If the belt deflection is not within
specification, see repair procedure
7-2,
How to Adjust the Generator
Belts.
a
b
c
If alignment does not meet
specification, refer to Repair
Procedure 6-3,
Engine Drive Pulley
How to Install the
to adjust the
pulley alignment.
aengine pulley
bgenerator belts
cgenerator pulley
7 Check the torque of the pulley retaining nut on
the generator. Refer to Section 2,
S
pecifications
.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 9
Page 34
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST A PROCEDURES
A-5
Perform Function Tests
Completing the function tests is essential to safe
machine operation. Function tests are designed to
discover any malfunctions before the machine is
put into service. A malfunctioning machine must
never be used. If malfunctions are discovered, the
machine must be tagged and removed from
service.
Complete information to perform this procedure is
available in the
Genie Z-45/25J Bi-Energy Operator's Manual
your machine.
Genie Z-45/25 Bi-Energy and
on
A-6
Perform 30 Day Service
REV A
A-7
Perform Engine Maintenance
Engine specifications require that
this procedure be performed every
50 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
The 30 day maintenance procedure is a one time
sequence of procedures to be performed after the
first 30 days or 50 hours of usage. After this
interval, refer to the maintenance tables for
continued scheduled maintenance.
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
A-8
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 75 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
CHECKLIST A PROCEDURES
A-9
Grease the Turntable Rotation
Bearing and Rotate Gear
Genie specifications require that
this procedure be performed every
100 hours of operation. Perform
this procedure more often if dusty
conditions exist.
Frequent application of lubrication to the turntable
bearing and rotate gear is essential to good
machine performance and service life. Continued
use of an improperly greased bearing and gear will
result in component damage.
1 Locate the grease fitting on the front turntable
cover.
Kubota Z482-E Operator's Manual
Genie part number52958
To access the engine:
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine out away from the machine.
2 Pump grease into the turntable rotation bearing.
Rotate the turntable in increments of
4 to 5 inches / 10 to 13 cm at a time and repeat
this step until the entire bearing has been
greased.
3 Apply grease to each tooth of the drive gear,
located under the turntable.
Grease typeMultipurpose grease
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 11
Page 36
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST A PROCEDURES
A-10
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 100 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
REV A
A-11
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 150 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
A-12
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 200 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
CHECKLIST A PROCEDURES
Kubota Z482-E Operator's Manual
Genie part number52958
To access the engine:
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine out away from the machine.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 13
Page 38
July 2004Section 3 • Scheduled Maintenance Procedures
Checklist B Procedures
B-1
Check the Radiator
Maintaining the radiator in good condition is
essential for good engine performance. Operating
a machine with a damaged or leaking radiator may
result in engine damage. Also, restricting air flow
through the radiator (i.e., dirt or debris) will affect
the performance of the cooling system. A frequent
check allows the inspector to identify changes in
the condition of the radiator that might indicate
cooling system problems.
Bodily injury hazard. Do not
inspect while the engine is
running. Remove the key to
secure from operation.
Bodily injury hazard. Beware of
hot engine components. Contact
with hot engine components may
cause severe burns.
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine pivot plate out away from the machine to
access the radiator.
3 Inspect the radiator for leaks and physical
damage.
B-2
Check the Exhaust System
Maintaining the exhaust system is essential to
good engine performance and service life. Running
the engine with a damaged or leaking exhaust
system can cause component damage and unsafe
operating conditions.
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine pivot plate out away from the machine to
access the exhaust system.
3 Be sure that all nuts and bolts are tight.
4 Inspect all welds for cracks.
5 Inspect for exhaust leaks; i.e., carbon buildup
around seams and joints.
REV A
Bodily injury hazard. Do not
inspect while the engine
is running. Remove the key to
secure from operation.
Bodily injury hazard. Beware of
hot engine components. Contact
with hot engine components may
cause severe burns.
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST B PROCEDURES
B-3
Check the Batteries
Proper battery condition is essential to good
machine performance and operational safety.
Improper fluid levels or damaged cables and
connections can result in engine component
damage and hazardous conditions.
Electrocution hazard. Contact
with hot or live circuits could result
in death or serious injury. Remove
all rings, watches and other
jewelry.
Bodily injury hazard. Batteries
contain acid. Avoid spilling or
contacting battery acid. Neutralize
battery acid spills with baking soda
and water.
Charging the batteries with the
engine does not fully charge the
batteries. Periodically, use the AC
battery charger to fully charge the
batteries.
3 Be sure that the cable connections are tight.
4 Remove the battery vent caps and check the
specific gravity of each battery cell with a
hydrometer.
Result: If any battery cell displays a specific
gravity of less than 1.026, the battery must be
replaced.
5 Check the battery acid level of the battery. If
needed, replenish with distilled water to the
bottom of the battery fill tube. Do not overfill.
6 Install the battery vent caps.
7 Be sure the battery packs are wired correctly.
+
-
+
-
+
-
+
+
-
-
The engine battery is a
maintenance free battery and
does not require the replenishing
of electrolyte.
Perform this procedure after fully
charging the batteries.
For a more accurate determination
of battery condition, fully charge
the batteries and allow the
batteries to rest 24 hours before
performing this procedure to allow
the battery cells to equalize.
1 Put on protective clothing and eye wear.
2 Be sure that the battery cable connections are
free of corrosion.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 15
Page 40
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-4
Inspect the Electrical Wiring
Maintaining electrical wiring in good condition is
essential to safe operation and good machine
performance. Failure to find and replace burnt,
chafed, corroded or pinched wires could result in
unsafe operating conditions and may cause
component damage.
Electrocution hazard. Contact
with hot or live circuits could result
in death or serious injury. Remove
all rings, watches and other
jewelry.
1 Inspect the following areas for burnt, chafed,
corroded and loose wires:
· Generator and power units
· Engine wiring harness
· Inside of the ground control box
· Turntable manifold wiring
2 Raise the secondary boom until the mid-pivot is
approximately 10 feet / 3 m off the ground.
3 Remove the center turntable cover.
4 Inspect the turntable center area for burnt,
chafed and pinched cables.
5 Install the center turntable cover.
6 Lower the boom to the stowed position and turn
the machine off.
7 Inspect the following areas for burnt, chafed,
corroded, pinched and loose wires:
· Cable track on the primary, jib and
secondary booms
· Jib boom to platform cable harness
· Inside of the platform control box
REV A
B-5
Check the Lug Nut Torque
(including the tires and wheels)
Maintaining the tires and wheels in good
condition is essential to safe operation and good
performance. Tire and/or wheel failure could result
in a machine tip-over. Component damage may
also result if problems are not discovered and
repaired in a timely fashion.
Tip over hazard. An over-inflated
tire can explode which will
compromise machine stability and
and cause the machine to tip over.
Bodily injury hazard. An overinflated tire can explode and may
cause death or serious injury.
Tip-over hazard. Do not use
temporary flat tire repair products.
The tires on some machines are
foam-filled and do not need air
added to them.
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST B PROCEDURES
B-6
Confirm the Proper
Brake Configuration
Proper brake configuration is essential to safe
operation and good machine performance.
Hydraulically-released, spring-applied individual
wheel brakes can appear to operate normally when
they are actually not fully operational.
1 Check each drive hub disconnect cap to be
sure it is in the engaged position.
brake disengaged position
brake engaged position
B-7
Check the Oil Level
in the Drive Hubs
Failure to maintain proper drive hub oil levels may
cause the machine to perform poorly and
continued use may cause component damage.
1 Drive the machine to rotate the hub until one of
the plugs is located on top and the other one is
at 90 degrees.
models with pipe plugs
a
amodels with o-ring plugs
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 17
Page 42
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
2 Remove the plug located at 90 degrees and
check the oil level.
Result: The oil level should be even with the
bottom of the side plug hole.
3 If necessary, remove the top plug and add oil
until the oil level is even with the bottom of the
side plug hole.
4 Models with pipe plugs: Apply pipe thread
sealant to the plugs and install the plugs.
Models with O-ring plugs: Install the plugs
into the drive hub.
5 Repeat steps 1 through 4 for the other drive
hub.
REV A
B-8
Check and Adjust the
Engine RPM
Maintaining the engine rpm at the proper setting for
both low and high idle is essential to good engine
performance and service life. The machine will not
operate properly if the rpm is incorrect and
continued use may cause component damage.
5 Move the engine idle control switch to high idle
(rabbit symbol) from the ground controls.
Result: High idle should be 3000 rpm.
Skip to step 7 if the high idle rpm is correct.
6 Loosen the lock nut on the solenoid, then turn
the solenoid boot counterclockwise to increase
the rpm or clockwise to decrease the rpm.
Tighten the lock nut and recheck the rpm.
Be sure the solenoid fully retracts
when activating high idle.
a
7 Swing the engine back to its original position
and close the engine pivot plate latch.
8 Install the engine pivot plate latch retainer.
B-9
b
Test the Ground Control Override
A properly functioning ground control override is
c
essential to safe machine operation. The ground
control override function is intended to allow
d
ground personnel to operate the machine from the
ground controls whether or not the Emergency
Stop button on the platform controls is in the ON or
OFF position. This function is particularly useful if
the operator at the platform controls cannot return
the boom to the stowed position.
1 Push in the platform red Emergency Stop
button to the off position.
2 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position.
3 Operate each boom function through a
partial cycle at the ground controls.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 19
Result: All boom functions should operate.
Page 44
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST B PROCEDURES
B-10
Test the Platform Self-leveling
Automatic platform self-leveling throughout
the full cycle of boom raising and lowering is
essential for safe machine operation. The
platform is maintained at level by the platform
leveling slave cylinder which is controlled by the
master cylinder located at the base of the primary
boom. A platform self-leveling failure creates an
unsafe working condition.
1 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position.
2 Lower the boom to the stowed position.
3 Hold the function enable toggle switch to either
side and adjust the platform to a level position
using the platform level toggle switch.
4 Raise and lower the primary boom through
a full cycle.
Result: The platform should remain level at
all times to within ±5 degrees.
B-11
Test the Engine Idle Select
A properly operating engine idle select switch
is essential to good engine performance and safe
machine operation. There are three settings.
Low idle (turtle symbol): Low idle and slow battery
charging.
High idle (rabbit symbol): High idle and quickest
battery charging.
Foot switch activated high idle (rabbit and foot
switch symbols): Activates high idle only when the
foot switch is pressed down.
1 Start the engine from the ground controls. Move
the engine idle select toggle switch to high idle
(rabbit symbol).
Result: The engine should change to high idle.
3 Release the engine idle select toggle switch.
Result: The engine should return to low idle.
4 Turn the key switch to platform controls.
5 At the platform controls, move the engine idle
select toggle switch to high idle (rabbit symbol).
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
6 Move the engine idle select toggle switch to low
idle (turtle symbol).
Result: The engine should change to low idle.
7 Move the engine idle select toggle switch to foot
switch activated high idle (rabbit and foot switch
symbol).
Result: The engine should not change to
high idle.
8 Press down the foot switch.
Result: The engine should change to high idle.
CHECKLIST B PROCEDURES
B-12
Test the Drive Brakes
Proper brake action is essential to safe machine
operation. The machine uses drive motor
regenerative braking to stop the machine.
Hydraulically-released individual wheel brakes hold
the machine once it has stopped. The drive motor
regenerative braking should operate smoothly, free
of hesitation and jerking. Hydraulically-released
individual wheel brakes can appear to operate
normally when not fully operational.
Collision hazard. Be sure that the
machine is not in free-wheel or
partial free-wheel configuration.
Refer to B-6,
Brake Configuration
Confirm the Proper
.
Select a test area that is firm, level
and free of obstructions.
1 Mark a test line on the ground for reference.
2 Lower the boom into the stowed position.
3 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the test line.
4 Bring the machine to maximum drive speed
before reaching the test line. Release the drive
joystick when your reference point on the
machine crosses the test line.
5 Measure the distance between the test line and
your machine reference point. Refer to
Section 2,
Specifications
The brakes must be able to hold
the machine on any slope it is able
to climb.
.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 21
Page 46
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-13
Test the Drive Speed Stowed Position
Proper drive function movement is essential to
safe machine operation. The drive function should
respond quickly and smoothly to operator control.
Drive performance should also be free of
hesitation, jerking and unusual noise over the
entire proportionally controlled speed range.
Select a test area that is firm, level
and free of obstructions.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 Lower the boom into the stowed position.
3 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the start and finish lines.
REV A
B-14
Test the Drive Speed - Raised or
Extended Position
Proper drive function movement is essential to
safe machine operation. The drive function should
respond quickly and smoothly to operator control.
Drive performance should also be free of
hesitation, jerking and unusual noise over the
entire proportionally controlled speed range.
Select a test area that is firm, level
and free of obstructions.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 Raise the platform more than 5 feet / 1.5 m.
3 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the start and finish lines.
4 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
5 Continue at full speed and note the time when
the machine reference point passes over the
finish line. Refer to Section 2,
Specifications
4 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
B-15
Test the Alarm Package
(if equipped)
The alarm package includes:
· Travel alarm
· Descent alarm
· Beacon
Alarms and a beacon are installed to alert
operators and ground personnel of machine
proximity and motion. The alarm package is
installed on the ground controls side turntable
cover.
The alarms and beacon will
operate with the engine
running or not running.
1 Turn the key switch to ground controls and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
CHECKLIST B PROCEDURES
3 Turn the key switch to platform control.
Result: The beacon should be flashing.
5 Press down the foot switch. Move the primary
boom toggle switch to the down position, hold
for a moment and then release it. Move the
secondary boom toggle switch to the down
position, hold for a moment and then release it.
Z-45/25J: Move the jib boom toggle switch to
the down position, hold for a moment and then
release it.
Result: The descent alarm should sound when
each toggle switch is held down.
6 Press down the foot switch. Move the drive
control handle off center, hold for a moment
and then release it. Move the drive control
handle off center in the opposite direction, hold
for a moment and then release it.
Result: The travel alarm should sound when the
drive control handle is moved off center in
either direction.
Result: The beacon should be flashing.
2 Move the primary boom toggle switch to the
down position, hold for a moment and then
release it. Move the secondary boom toggle
switch to the down position, hold for a moment
and then release it.
Z-45/25J: Move the jib boom toggle switch to
the down position, hold for a moment and then
release it.
Result: The descent alarm should sound when
each toggle switch is held down.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 23
Page 48
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-16
Test the Turntable Rotation Stop
The turntable is capable of rotating the boom 355
degrees and is stopped midpoint between the steer
wheels by the rotation stop. Detecting a rotation
stop malfunction is essential to safe operation and
good machine performance. If the turntable rotates
past the rotation stop, component damage may
result.
1 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
2 Rotate the turntable to the left as far as it
will go.
Result: Movement should stop when the
primary boom reaches mid-point between the
steer tires.
3 Rotate the turntable to the right full circle as far
as it will go.
Result: Movement should stop when the
primary boom reaches mid-point between the
steer tires.
REV A
B-17
Check the Electrical Contactors
Maintaining the electrical contactors in good
condition is essential to safe machine operation.
Failure to locate a worn or damaged contactor
could result in an unsafe working condition and
component damage.
1 Remove the non-steer drive chassis cover and
locate the electrical contactors mounted on the
component mounting panel.
2 Visually inspect the contact points of each
contactor for the following items:
· Excessive burns
· Excessive arcs
· Excessive pitting
Electrocution hazard. Contact
with hot or live circuits could result
in death or serious injury. Remove
all rings, watches and other
jewelry.
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST B PROCEDURES
B-18
Replace the Hydraulic Tank
Return Filter
Replacement of the hydraulic tank return filter is
essential for good machine performance and
service life. A dirty or clogged filter may cause the
machine to perform poorly and continued use may
cause component damage. Extremely dirty
conditions may require that the filter be replaced
more often.
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
1 Locate the hydraulic return filter next to the
hydraulic tank.
2 Place a suitable container under the hydraulic
filter.
3 Remove the filter with an oil filter wrench.
4 Apply a thin layer of oil to the new oil filter
gasket.
5 Install the new filter and tighten it securely by
hand. Clean up any oil that may have spilled
during the installation procedure.
6 Turn the key switch to ground controls and pull
out the red Emergency Stop button out to the
on position at both the ground and platform
controls.
7 Activate any boom function and inspect the filter
and related components to be sure that there
are no leaks.
8 Use a permanent ink marker to write the date
and number of hours from the hour meter on
the oil filter.
B-19
Perform Hydraulic Oil Analysis
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and suction strainers may
cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require oil changes
to be performed more often.
Before replacing the hydraulic oil,
the oil may be tested by an oil
distributor for specific levels of
contamination to verify that
changing the oil is necessary. If
the hydraulic oil is not replaced
at the two year inspection, test
the oil quarterly. Replace the oil
when it fails the test. See E-1,
Test or Replace the Hydraulic Oil.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 25
Page 50
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-20
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 400 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
Checklist C Procedures
C-1
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 500 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
C-2
Grease the Platform Overload
Mechanism (if equipped)
Genie specifications require
that this procedure be performed
every 500 hours or 6 months,
whichever comes first. Perform
this procedure more often if dusty
conditions exist.
Application of lubrication to the platform overload
mechanism is essential to safe machine operation.
Continued use of an improperly greased platform
overload mechanism could result in the system not
sensing an overloaded platform condition and will
result in component damage.
Kubota Z482-E Operator's Manual
Genie part number52958
To access the engine:
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine out away from the machine.
1 Locate the grease fittings on each pivot pin of
the platform overload assembly.
2 Thoroughly pump grease into each grease
fitting using a mulit-purpose grease.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 27
Page 52
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST C PROCEDURES
C-3
Test the Platform Overload
System (if equipped)
Genie specifications require that
this procedure be performed every
500 hours or six months,
whichever comes first.
Testing the platform overload system regularly is
essential to safe machine operation. Continued
use of an improperly operating platform overload
system could result in the system not sensing an
overloaded platform condition. Machine stablity
could be compromised resulting in the machine
tipping over.
Perform this procedure with the
machine on a firm, level surface.
1 Turn the key switch to platform control.
2 Level the platform from the platform controls.
3 Determine the maximum platform capacity.
Refer to the machine serial plate.
REV A
4 Using a suitable lifting device, place an
appropriate test weight equal to that of the
maximum platform capacity in one of the
locations shown.
Result: The platform overload indicator light
should be off at both the ground and platform
controls.
5 Carefully move the test weight to each
remaining location.
Result: The platform overload indicator light
should be off at both the ground and platform
controls.
6 Add an additional 66 lbs / 30 kg of weight to
overload the platform.
Result: The alarm should be sounding.
The platform overload indicator light should be
flashing at both the ground and platform
controls.
If the alarm does not sound and
the platform overload indicator
light does not come on with the
test weights in any of the platform
locations, the platform overload
system needs to be calibrated.
See D-5,
Overload System
There may be an approximate 2
second delay before the overload
indicator light turns on and the
alarm sounds.
Calibrate the Platform
.
Page 53
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
7 Carefully move the test weights to each
remaining location in the platform.
Result: The alarm should be sounding.
The platform overload indicator light should be
flashing at both the ground and platform
controls.
If the alarm does not sound and
the platform overload indicator
light does not come on with the
test weights in any of the platform
locations, the platform overload
system needs to be calibrated.
See D-5,
Overload System
Calibrate the Platform
.
There may be an approximate 2
second delay before the overload
indicator light turns on and the
alarm sounds.
8 Test all machine functions from the platform
controls.
Result: All platform control functions should not
operate.
9 Turn the key switch to ground control.
CHECKLIST C PROCEDURES
11 Lift the test weights off the platform floor using a
suitable lifting device.
Result: The platform overload indicator light and
alarm should turn off at both the ground and
platform controls.
There may be an approximate 2
second delay before the overload
indicator light and alarm turn off.
12 Test all machine functions from the ground
controls.
Result: All ground control functions should
operate normally.
13 Turn the key switch to platform control.
14 Test all machine functions from the platform
controls.
Result: All platform control functions should
operate.
If the platform overload system is
not operating properly, see D-5,
Calibrate the Platform Overload
System.
10 Test all machine functions from the ground
controls.
Result: All ground control functions should not
operate.
Machine functions should still
operate with auxiliary power at the
ground controls.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 29
Page 54
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST C PROCEDURES
C-4
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 800 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
Checklist D Procedures
D-1
Check the Primary Boom
Wear Pads
Maintaining the boom wear pads in good condition
is essential to safe machine operation. Wear pads
are placed on boom tube surfaces to provide a low
friction, replaceable wear pad between moving
parts. Improperly shimmed wear pads or continued
use of worn out wear pads may result in
component damage and unsafe operating
conditions.
1 Raise the end of the primary boom to a
comfortable working height (chest high), then
extend the boom 1 foot / 30 cm.
2 Measure each wear pad. Replace the wear pad
if it is less than 9/16 inch / 14.3 mm. If the wear
pad is not less than 9/16 inch / 14.3 mm, shim
as necessary to obtain zero clearance with
minimal drag.
3 Extend and retract the primary boom through
the entire range of motion to check for tight
spots that may cause binding or scraping of the
boom.
D-2
Check the Turntable Rotation
Bearing Bolts
Maintaining proper torque on the turntable bearing
bolts is essential to safe machine operation.
Improper bolt torque could result in an unsafe
operating condition and component damage.
1 Raise the primary boom and place a safety
chock on the lift cylinder rod. Carefully lower
the boom onto the lift cylinder safety chock.
Crushing hazard. Keep hands
away from cylinder and all moving
parts when lowering the boom.
A lift cylinder safety chock is
available through Genie
(part number 33484).
2 Remove the engine pivot plate latch retainer.
3 Open the engine pivot plate latch and swing the
engine out and away from the machine to
access the turntable bearing bolts.
Always maintain squareness
between the outer and inner
boom tubes.
Wear pad specifications
All wear pads
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 31
9
/16 inch
14.3 mm
Page 56
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST D PROCEDURES
4 Be sure that each turntable mounting bolt is
torqued in sequence to 220 ft-lbs / 298 Nm.
9
5
3
8
12
2
10
Bolt torque sequence
(before serial number 23332)
18
9
6
16
1
11
7
4
6
1
11
7
13
5 Lower the boom to the stowed position.
6 Remove drive chassis covers from both the
steer end and the non-steer end of the
machine.
7 Check to ensure that each bearing mounting
bolt under the drive chassis is torqued in
sequence to 220 ft-lbs / 298 Nm.
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST D PROCEDURES
D-3
Check the Free-wheel
Configuration
Proper use of the free-wheel configuration is
essential to safe machine operation. The
free-wheel configuration is used primarily for
towing. A machine configured to free-wheel without
operator knowledge could result in death or serious
injury and property damage.
Collision hazard. Select a work
site that is firm and level.
Component damage hazard. If the
machine must be towed, do not
exceed 2 mph / 3.2 km/h.
1 Chock the steer wheels to prevent the machine
from rolling.
2 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive chassis
between the non-steer tires.
3 Lift the wheels off the ground and then place
jack stands under the drive chassis for support.
5 Manually rotate each non-steer wheel.
Result: Each non-steer wheel should rotate with
minimum effort.
6 Re-engage the drive hubs by turning over
the hub disconnect caps. Rotate each wheel to
check for engagement. Lift the machine and
remove the jack stands.
Collision hazard. Failure to
engage the drive hubs could result
in death or serious injury and
property damage.
4 Disengage the drive hubs by turning over the
drive hub disconnect caps on each non-steer
wheel hub.
brake disengaged position
brake engaged position
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 33
Page 58
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST D PROCEDURES
D-4
Replace the Drive Hub Oil
Replacing the drive hub oil is essential for good
machine performance and service life. Failure to
replace the drive hub oil at yearly intervals may
cause the machine to perform poorly and
continued use may cause component damage.
1 Select the drive hub to be serviced. Then drive
the machine until one of the two plugs is at the
lowest point.
2 Remove both plugs and drain the oil.
3 Drive the machine to rotate the hub until one of
the plugs is located on top and the other one is
at 90 degrees.
4 Fill the hub with oil from the top hole until the oil
level is even with the bottom of the side hole.
5 Models with pipe plugs: Apply pipe thread
sealant to the plugs and install the plugs.
Models with O-ring plugs: Install the plugs
into the drive hub.
6 Repeat steps 1 through 5 for the other drive
hub.
D-5
Calibrate the Platform Overload
System (if equipped)
Genie specifications require that
this procedure be performed every
1000 hours or annually, whichever
comes first.
models with pipe plugs
amodels with o-ring plugs
Yearly 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.
a
1 Level the platform.
2 Determine the maximum platform capacity.
Refer to the machine serial plate.
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.
Perform this procedure with the
machine on a firm, level surface.
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
Determine the limit switch trigger point:
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.
The platform will need to be
moved up and down and allowed
to settle in between adjustments.
There may be an approximate 2
second delay before the overload
indicator light turns on 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.
There may be an approximate 2
second delay before the overload
indicator light turns on and the
alarm sounds.
The platform will need to be
moved up and down and allowed
to settle in between adjustments.
CHECKLIST D PROCEDURES
Confirm the setting:
5 Turn the key switch to platform control.
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 both the
ground and platform controls.
There may be an approximate 2
second delay before the overload
indicator light and alarm turn off.
8 Add an additional 10 lb / 4.5 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 both the ground and platform
controls.
There may be an approximate 2
second delay before the overload
indicator light turns on and the
alarm sounds.
9 Test all machine functions from the platform
controls.
Result: All platform control functions should not
operate.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 35
10 Turn the key switch to ground control.
11 Test all machine functions from the ground
controls.
Result: All ground control functions should not
operate.
If the platform overload system is
not operating properly, repeat
steps 1 through 4.
Page 60
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST D PROCEDURES
D-6
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 1000 hours or annually,
whichever comes first.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
Kubota Z482-E Operator's Manual
Genie part number52958
REV A
D-7
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 1500 hours.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
July 2004Section 3 • Scheduled Maintenance Procedures
REV A
Checklist E Procedures
E-1
Test or Replace the Hydraulic Oil
Replacement or testing of the hydraulic oil is
essential for good machine performance and
service life. Dirty oil and suction strainers may
cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require oil changes
to be performed more often.
Before replacing the hydraulic oil,
the oil may be tested by an oil
distributor for specific levels of
contamination to verify that
changing the oil is necessary. If
the hydraulic oil is not replaced
at the two year inspection, test
the oil quarterly. Replace the oil
when it fails the test.
Perform this procedure with the
boom in the stowed position.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Place a suitable container under the hydraulic
tank. See capacity specifications.
Hydraulic Hose and
2 Remove the drain plug from the hydraulic tank.
3 Completely drain the tank into a suitable
container.
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
4 Tag, disconnect and plug the hydraulic hose
from the hydraulic tank filter at the tank.
Bodily injury hazard. Spraying
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. Beware of
hot oil. Contact with hot oil may
cause severe burns.
5 Remove the hydraulic tank mounting fasteners.
6 Pull the hydraulic tank out slightly to access the
two suction hoses.
7 Tag, disconnect and plug the two suction hoses
on the back of the hydraulic tank.
Bodily injury hazard. Spraying
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.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 37
Page 62
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST E PROCEDURES
8 Remove the hydraulic tank from the machine.
Component damage hazard. The
hydraulic tank is plastic and may
become damaged if it is allowed to
fall.
9 Remove the suction strainer from the tank and
clean it using a mild solvent.
10 Rinse out the inside of the tank using a mild
solvent.
11 Install the suction strainer and drain plug using
a thread sealer on the threads.
12 Place the hydraulic tank onto the machine.
13 Install the hydraulic hoses.
14 Install the hydraulic tank mounting fasteners
and torque to specification. Refer to Section 2,
Specifications
15 Fill the tank with hydraulic oil until the fluid is
within the FULL and ADD marks on the hydraulic
tank. Do not overfill.
.
Component damage hazard. The
hydraulic tank may become
damaged if the tank mounting
fasteners are over tightened.
REV A
E-2
Perform Engine Maintenance
Engine specifications require that
this procedure be performed
every 2000 hours or every two
years, whichever comes first.
Proper engine maintenance, following the engine
manufacturer's maintenance schedule, is essential
to good engine performance and service life.
Failure to perform the maintenance procedures
can lead to poor engine performance and
component damage.
Required maintenance procedures and additional
engine information are available in the
Kubota Z482-E Operator's Manual
(Kubota part number 16676-89163).
Kubota Z482-E Operator's Manual
Genie part number52958
To access the engine:
16 Clean up any oil that may have spilled. Properly
July 2004Section 3 • Scheduled Maintenance Procedures
REV ACHECKLIST E PROCEDURES
E-3
Grease the Steer Axle
Wheel Bearings
Maintaining the steer axle wheel bearings is
essential for safe machine operation and service
life. Operating the machine with loose or worn
wheel bearings may cause an unsafe operating
condition and continued use may result in
component damage. Extremely wet or dirty
conditions or regular steam cleaning and pressure
washing of the machine may require that this
procedure be performed more often.
1 Loosen the wheel lug nuts. Do not remove
them.
2 Block the non-steer wheels, then center a lifting
jack under the steer axle.
3 Raise the machine 6 inches / 15 cm and place
blocks under the drive chassis for support.
4 Remove the lug nuts. Remove the tire and
wheel assembly.
5 Check for wheel bearing wear by attempting to
move the wheel hub side to side, then up and
down.
Result: There should be no side to side or up
and down movement.
Skip to step 10 if there is no movement.
6 Remove the dust cap from the hub. Remove the
cotter pin from the castle nut.
7 Tighten the castle nut to 35 ft-lbs / 47 Nm to
seat the bearings.
8 Loosen the castle nut and re-tighten to
8 ft-lbs / 11 Nm.
9 Check for wheel bearing wear by attempting to
move the wheel hub side to side, then up and
down.
Result: If there is side to side or up and down
movement, continue to step 11 and replace the
wheel bearings with new ones.
When replacing a wheel bearing,
both the inner and outer bearings,
including the pressed-in races,
must be replaced.
Result: If there is no side to side or up and
down movement, continue with step 11 and
grease the wheel bearings.
10 Remove the dust cap from the hub. Remove the
cotter pin from the castle nut.
11 Remove the castle nut.
12 Pull the hub off of the spindle. The washer and
outer bearing should fall loose from the hub.
13 Place the hub on a flat surface and gently pry
the bearing seal out of the hub. Remove the
rear bearing.
14 Pack both bearings with clean, fresh grease.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy3 - 39
Page 64
July 2004Section 3 • Scheduled Maintenance Procedures
CHECKLIST E PROCEDURES
15 Place the large inner bearing into the rear of the
hub.
16 Install a new bearing grease seal into the hub
by pressing it evenly into the hub until it is flush.
Always replace the bearing grease
seal when removing the hub.
17 Slide the hub onto the yoke spindle.
Component damage hazard. Do
not apply excessive force or
damage to the lip of the seal may
occur.
18 Place the outer bearing into the hub.
19 Install the washer and castle nut.
20 Tighten the castle nut to 35 ft-lbs / 47 Nm to
seat the bearings.
21 Loosen the castle nut and re-tighten to
8 ft-lbs / 11 Nm.
REV A
22 Install a new cotter pin. Bend the cotter pin
to lock it in.
23 Install the dust cap, then the tire and wheel
assembly. Torque the wheel lug nuts to
specification. Refer to Section 2,
Most of the procedures in this section should only
be performed by a trained service professional
in a suitably equipped workshop. Select the
appropriate repair procedure after troubleshooting
the problem.
Observe and Obey:
Repair procedures shall be completed by a
person trained and qualified on the repair of this
machine.
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating the machine.
Before Repairs Start:
Read, understand and obey the safety rules
and operating instructions in the
Genie Z-45/25 Bi-Energy and Genie Z-45/25J
Bi-Energy Operator’s Manual
Be sure that all necessary tools and parts are
available and ready for use.
Read each procedure completely and adhere
to the instructions. Attempting shortcuts may
produce hazardous conditions.
Unless otherwise specified, perform each
repair procedure with the machine in the
following configuration:
· Machine parked on a firm, level surface
· Boom in stowed position
· Turntable rotated with the boom between
the non-steer wheels
· Turntable secured with the turntable
rotation lock
· Key switch in the off position with the
key removed
· Wheels chocked
on your machine.
Perform disassembly procedures to the point
where repairs can be completed. Then to
re-assemble, perform the disassembly steps in
reverse order.
Symbols Legend
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 death.
Used to indicate the presence of
an imminently hazardous situation
which, if not avoided, will result in
death or serious injury.
Used to indicate the presence of a
potentially hazardous situation
which, if not avoided, could result
in death or serious injury.
With safety alert symbol—used to
indicate the presence of a
potentially hazardous situation
which, if not avoided, may cause
minor or moderate injury.
Without safety alert symbol—used
to indicate the presence of a
potentially hazardous situation
which, if not avoided, may result in
property damage.
Used to indicate operation or
maintenance information.
Indicates that a specific result is expected after
performing a series of steps.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 1
Page 66
July 2004Section 4 • Repair Procedures
Platform Controls
1-1
Controllers
Platform Controls
The drive joystick is connected to the drive motor
controller located under the non-steer end drive
chassis cover. The drive motor controller can also
recognize machine drive malfunctions and display
controller fault codes by flashing an LED at the
ground controls. See the Troubleshooting section
of this manual for a list of fault codes and
additional information. There are no adjustments
needed on the drive joystick controller. For further
information or assistance, consult the Genie
Industries Service Department.
REV A
Boom Function Speed
Controller Adjustments
Do not adjust the controllers
unless the static battery supply
voltage is above 24V DC at the
platform red Emergency Stop
button.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
1 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
2 Open the platform control box lid and locate the
boom function speed controller.
b
aboom function speed controller
bdrive joystick
a
b
a
c
d
athreshold adjustable trimpot
bmax-out adjustable trimpot
cwhite/red wire to TP6
dboom function speed controller
the wht/red wire. Connect the black (-) lead to
the piece of wire at TP6.
After serial number 21179:
3 Disconnect the blk/red wire of the boom
function speed controller from the wht/red wire.
4 Connect the red (+) lead from an amp meter to
the blk/red wire. Connect the black (-) lead to
the wht/red wire.
All models:
5 Turn the boom function speed controller to the
CREEP position.
6 Set the threshold: With the boom in the stowed
position, press down the foot switch and move
the primary boom toggle switch in the down
position until the amperage reading appears.
Adjust the amperage to 0.17 to 0.18A. Turn the
threshold trimpot adjustment screw clockwise to
increase the amperage or counterclockwise to
decrease the amperage.
PLATFORM CONTROLS
7 Turn the boom function speed controller to
the 9 position.
8 Set the max-out: Press down the foot switch,
then move the primary boom toggle switch in
the down position. Adjust the amperage to 0.54
to 0.55A. Turn the max-out trimpot adjustment
screw clockwise to increase the amperage or
counterclockwise to decrease the amperage.
9 Before serial number 21180: Remove the
temporary wire from TP6 and install the wht/red
wire into TP6.
Boom function speed
controller specifications
Threshold0.17 to 0.18A
Max-out0.54 to 0.55A
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 3
Page 68
July 2004Section 4 • Repair Procedures
Platform Components
2-1
Platform Leveling Slave Cylinder
The slave cylinder and the rotator pivot are the
two primary supports for the platform. The slave
cylinder keeps the platform level through the
entire range of boom motion. It operates in a
closed-circuit hydraulic loop with the master
cylinder. The slave cylinder is equipped with
counterbalance valves to prevent movement in
the event of a hydraulic line failure.
How to Remove the Platform
Leveling Slave Cylinder
Before cylinder removal is
considered, bleed the slave
cylinder to be sure there is no
air in the closed loop.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section Two,
Hose and Fitting Torque
Specifications.
1 Z-45/25J: Extend the primary boom until the
slave cylinder barrel-end pivot pin is accessible.
2 Raise the primary boom slightly and place
blocks under the platform for support.
Hydraulic
REV A
3 Lower the primary boom until the platform is
resting on the blocks just enough to support the
platform.
Do not rest the entire weight of the
boom on the blocks.
4 Z-45/25J: Tag and disconnect the hydraulic
hoses from the slave cylinder at the union
located near the jib/rotate manifold and connect
them together using a connector. Connect the
hoses from the cylinder together using a
connector.
Bodily injury hazard. Spraying
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.
Z-45/25: Tag and disconnect the hydraulic
hoses from the slave cylinder and connect the
hoses together using a connector. Cap the
fittings on the cylinder. Then pull the slave
cylinder hoses out through the primary
extension boom.
Bodily injury hazard. Spraying
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.
slave cylinder rod-end pivot pin. Do not remove
the pin.
Page 69
July 2004 Section 4 • Repair Procedures
REV APLATFORM COMPONENTS
6 Z-45/25J: Remove the external snap rings from
the barrel-end pivot pin. Do not remove the pin.
Z-45/25: Remove the pin retaining fastener
from the slave cylinder barrel-end pivot pin. Do
not remove the pin.
7 Support the slave cylinder with a lifting device.
8 Z-45/25J: Support the jib boom bell crank with a
suitable lifting device.
9 Use a soft metal drift to drive the rod-end pivot
pin out.
Crushing hazard. The jib boom
bell crank could fall when the
slave cylinder rod-end pivot pin is
removed if not properly supported.
Component damage hazard. The
slave cylinder rod may become
damaged if it is allowed to fall if
not properly supported by the
lifting device.
10 Use a soft metal drift to remove the rod-end
pivot pin.
How to Bleed the Slave Cylinder
1 Raise the primary boom to a horizontal position.
2 Move the platform level switch up and down
through two platform leveling cycles to remove
any air that might be in the system.
11 Use a soft metal drift to remove the barrel-end
pivot pin.
12 Carefully pull the cylinder out of the primary
boom.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 5
Page 70
July 2004Section 4 • Repair Procedures
PLATFORM COMPONENTS
2-2
Platform Rotator
How to Bleed the Platform
Rotator
1 Move the function enable toggle switch to either
side and activate the platform rotate toggle
switch to the right then the left through two
platform rotation cycles, then hold the switch to
the right position until the platform is fully
rotated to the right.
2 Connect a clear hose to the top bleed valve.
Place the other end of the hose in a container
to collect any drainage. Secure the container to
the boom.
3 Open the top bleed valve on the rotator, but do
not remove it.
a
REV A
4 Move the function enable toggle switch to either
side and hold the platform rotate toggle switch
to the left position until the platform is fully
rotated to the left. Continue holding the toggle
switch until air stops coming out of the bleed
valve. Close the bleed valve.
Crushing hazard. Keep clear of
the platform during rotation.
5 Connect the clear hose to the bottom bleed
valve and open the valve. Do not remove the
bleed valve.
6 Move the function enable toggle switch to either
side and hold the platform rotate toggle switch
to the right position until the platform is fully
rotated to the right. Continue holding the toggle
switch until air stops coming out of the bleed
valve. Close the bleed valve.
Crushing hazard. Keep clear of
the platform during rotation.
Perform this procedure with the
boom in the stowed position.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Remove the platform.
2 Remove the platform mounting weldment
and the platform rotator.
3 Remove the hose and cable cover from the side
of the jib boom.
4 Attach a lifting strap from an overhead crane to
the jib boom.
5 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on the
cylinder.
Bodily injury hazard. Spraying
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.
Hydraulic Hose and
6 Support the barrel end of the cylinder with a
suitable lifting device.
7 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
8 Use a soft metal drift to remove the pin and let
the cylinder hang down.
9 Remove the pin retaining fastener from the jib
boom pivot pin. Use a soft metal drift to remove
the pin, then remove the jib boom from the
primary boom bellcrank.
Crushing hazard. The jib boom
could become unbalanced and fall
when removed from the machine if
not properly attached to the
overhead crane.
10 Remove the pin retaining fastener from the jib
boom lift cylinder rod-end pivot pin. Do not
remove the pin.
11 Slide both of the jib boom leveling arms off of
the jib boom cylinder rod-end pivot pin.
12 Attach a lifting strap from an overhead crane to
the lug on the rod end of the jib boom lift
cylinder.
13 Use a soft metal drift to remove the jib boom lift
cylinder rod-end pivot pin, then remove the jib
boom lift cylinder from the primary boom
bellcrank.
Crushing hazard. The jib boom lift
cylinder could become unbalanced
and fall when removed from the
machine if not properly attached to
the overhead crane.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 7
Page 72
July 2004Section 4 • Repair Procedures
REV AJIB BOOM COMPONENTS, Z-45/25J
3-2
Jib Boom Lift Cylinder
How to Remove the Jib Boom
Lift Cylinder
Perform this procedure with the
boom in the stowed position.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Raise the jib boom slightly and place blocks
under the platform mounting weldment. Then
lower the jib boom until the platform is resting
on the blocks just enough to support the
platform.
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.
Hydraulic Hose and
3 Remove the pin retaining fasteners from the jib
boom lift cylinder rod-end pivot pin. Do not
remove the pin.
4 Use a soft metal drift to tap the jib boom lift
cylinder rod-end pivot pin half way out. Then
lower one of the leveling arms to the ground.
Tap the pin the other direction and lower the
opposite leveling arm. Do not remove the pin.
5 Support the jib boom lift cylinder with a lifting
device.
6 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin. Use a
soft metal drift to remove the barrel-end pin and
let the cylinder hang down.
7 Attach a lifting strap from an overhead crane to
the lug on the rod end of the jib boom lift
cylinder.
8 Use a soft metal drift to remove the jib boom lift
cylinder rod-end pin. Remove the cylinder from
the machine.
Crushing hazard. The jib boom lift
cylinder could become unbalanced
and fall when removed from the
machine if not properly attached to
the overhead crane.
Bodily injury hazard. Spraying
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.
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 Cable Track,
Z-45/25
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Locate the cables from the primary boom cable
track to the platform control box. Number each
cable and its entry location at the platform
control box.
2 Disconnect the cables from the platform control
box.
3 Pull all of the electrical cables out of the plastic
cable track. Do not pull out the hydraulic hoses.
4 Raise the primary boom to a horizontal position.
Hydraulic Hose
5 Tag, disconnect and plug the platform rotator
hydraulic hoses at the union located above the
primary boom lift cylinder. Cap the fittings on
the unions.
Bodily injury hazard. Spraying
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.
6 Tag, disconnect and plug the hydraulic hoses
from the "V1" and "V2" ports on the
counterbalance valve manifold located on the
platform rotator. Cap the fittings on the
manifold.
Bodily injury hazard. Spraying
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.
7 Tag, disconnect and plug the hydraulic hoses
from the platform leveling master cylinder. Cap
the fittings on the cylinder.
Bodily injury hazard. Spraying
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.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 9
Page 74
July 2004Section 4 • Repair Procedures
REV APRIMARY BOOM COMPONENTS
8 Tag and disconnect the hydraulic hoses from
the platform leveling slave cylinder and connect
them together using a connector. Cap the
fittings on the cylinder.
Bodily injury hazard. Spraying
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.
9 Pull the four hydraulic hoses toward the
platform to clear the rod end of the primary
boom lift cylinder.
10 Place blocks in between the upper and lower
cable tracks and secure the upper and lower
tracks together.
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.
11 Remove all hose and cable clamps from the
underside of the primary boom.
12 Attach a strap from an overhead crane to the
cable track.
13 Remove the mounting fasteners from the upper
cable track at the platform end of the extension
boom.
14 Remove the cable track mounting fasteners that
attach the lower cable track to the primary
boom.
15 Remove the cable track from the machine and
place it on a structure capable of supporting it.
Crushing hazard. The cable track
could become unbalanced and fall
if not properly attached to the
overhead crane.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
How to Remove the Cable Track,
Z-45/25J
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Locate the cables from the primary boom cable
track to the platform control box. Number each
cable and its entry location at the platform
control box.
2 Disconnect the cables from the platform control
box.
3 Pull all of the electrical cables out of the plastic
from the "V1" and "V2" ports on the
counterbalance valve manifold located on the
platform rotator. Cap the fittings on the
manifold.
Bodily injury hazard. Spraying
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.
5 Tag and disconnect the hydraulic hoses from
the platform leveling slave cylinder at the union
and connect them together using a connector.
Connect the hoses from the cylinder together
using a connector.
Bodily injury hazard. Spraying
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.
6 Tag, disconnect and plug the hydraulic hoses
from the jib boom/platform rotate manifold. Cap
the fittings on the manifold.
PRIMARY BOOM COMPONENTS
7 Tag, disconnect and plug the platform rotator
hydraulic hoses at the union located above the
primary boom lift cylinder. Cap the fittings on
the unions.
Bodily injury hazard. Spraying
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.
8 Tag, disconnect and plug the hydraulic hoses
from the platform leveling master cylinder. Cap
the fittings on the cylinder.
Bodily injury hazard. Spraying
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.
9 Raise the boom to a horizontal position.
10 Remove the hose and cable cover from the side
of the jib boom.
11 Remove the hose clamp on the primary boom
bellcrank.
Bodily injury hazard. Spraying
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.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 11
12 Place blocks between the upper and lower
cable tracks and secure the upper and lower
tracks together.
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.
Page 76
July 2004Section 4 • Repair Procedures
PRIMARY BOOM COMPONENTS
13 Attach a lifting strap from an overhead 5 ton /
5,000 kg capacity crane to the platform end of
the primary boom for support. Do not lift it.
14 Remove all hose and cable clamps from the
underside of the primary boom.
15 Support the rod end of the primary boom lift
cylinder with a lifting device.
16 Remove the pin retaining fasteners from the
primary boom lift cylinder rod-end pivot pin. Do
not remove the pin.
17 Raise the primary boom slightly with the
overhead crane to relieve the pressure on the
primary boom lift cylinder rod-end pivot pin.
18 Use a soft metal drift to remove the primary
boom lift cylinder rod-end pivot pin.
Crushing hazard. The primary
boom lift cylinder could become
unbalanced and fall if not properly
supported by the lifting device.
REV A
23 Remove the mounting fasteners from the upper
cable track at the platform end of the extension
boom.
24 Remove the cable track mounting fasteners that
attach the lower cable track to the primary
boom.
25 Remove the cable track from the machine and
place it on a structure capable of supporting it.
Crushing hazard. The cable track
could become unbalanced and fall
if it is not properly attached to the
overhead crane.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
19 Lower the rod end of the primary boom lift
cylinder approximately 12 inches / 30 cm.
20 Pull all of the hoses and cables out and away
from the mounting ears for the rod end of the
primary boom lift cylinder.
21 Raise the rod end of the primary boom lift
cylinder back into position and install the rodend pivot pin. Install the pin retaining fastener.
Component damage hazard. The
primary boom cable track can be
damaged if it is twisted.
A 7 link repair section of cable
track is available through the
Genie Industries Service Parts
Department.
a
b
alink separation point
blower clip
1 Use a slotted screwdriver to pry down on the
lower clip.
2 To remove a single link, open the lower clip
and then use a screw driver to pry the link to
the side.
3 Repeat steps 1 and 2 for each link.
4-2
Primary Boom
How to Remove the Primary
Boom
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.
Perform this procedure with the
boom in the stowed position.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Remove the platform.
2 Remove the platform rotator and platform
mounting weldment.
Hydraulic Hose
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 13
3 Z-45/25: Remove the platform leveling slave
cylinder. See 2-1,
Leveling Slave Cylinder.
Z-45/25J: Remove the jib boom.
See 3-1,
How to Remove the Jib Boom.
How to Remove the Platform
Page 78
July 2004Section 4 • Repair Procedures
REV APRIMARY BOOM COMPONENTS
4 Remove the cable track. See 4-1,
How to
Remove the Cable Track.
5 Raise the primary boom to a horizontal position.
6 Remove the hose and cable cover from the
upper pivot.
7 Remove the pin retaining fastener from the
master cylinder barrel-end pivot pin. Use a soft
metal drift to remove the pin. Then lower the
cylinder and let it hang down.
Component damage hazard.
When lowering the master cylinder
down, be sure not to damage the
master cylinder hoses or fittings.
8 Locate the primary boom drive speed limit
switch inside of the upper pivot.
9 Remove the primary boom drive speed limit
switch mounting fasteners. Do not disconnect
the wiring.
10 Locate the primary boom extension drive speed
limit switch inside of the extension boom.
11 Remove the primary boom extension drive
speed limit switch mounting fasteners. Do not
disconnect the wiring.
14 Remove the hose clamp at the pivot end of the
boom.
15 Attach a 5 ton / 5,000 kg overhead crane to the
center point of the primary boom.
16 Attach a similar lifting device to the primary
boom lift cylinder.
17 Place support blocks under the primary boom
lift cylinder.
18 Remove the pin retaining fastener from the
primary boom lift cylinder rod-end pivot pin. Use
a soft metal drift to remove the pin.
Crushing hazard. The boom lift
cylinder and primary boom will fall
if not properly supported.
19 Lower the rod end of the primary boom lift
cylinder onto support blocks. Protect the
cylinder rod from damage.
20 Remove the pin retaining fastener from the
primary boom pivot pin.
21 Remove the primary boom pivot pin with a soft
metal drift, then carefully remove the primary
boom from the machine and place it on a
structure capable of supporting it.
12 Pull the limit switch and the wiring out of the
extension tube and move it out of the way.
13 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses. Cap the
fittings on the cylinder.
Crushing hazard. The primary
boom could become unbalanced
and fall when removed from the
machine if not properly attached to
the overhead crane.
Bodily injury hazard. Spraying
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.
Complete disassembly of the
boom is only necessary
if the outer or inner boom tube
must be replaced. The extension
cylinder can be removed without
completely disassembling the
boom. See 4-4,
the Primary Boom Extension
Cylinder
1 Remove the primary boom. See
.
Remove the Primary Boom
2 Place blocks under the barrel end of the primary
boom extension cylinder for support.
3 Remove the pin retaining fastener from the
extension cylinder barrel-end pivot pin at the
pivot end of the primary boom. Use a soft metal
drift to remove the pin.
4 Remove and label the location of the wear pads
from the platform end of the primary boom.
How to Remove
How to
.
6 Remove the external snap rings from the
extension cylinder rod-end pivot pin at the
platform end of the extension tube. Use a soft
metal drift to remove the pin.
7 Support and slide the extension cylinder out of
the base end of the extension tube. Place the
extension cylinder on blocks for support.
Crushing hazard. The extension
cylinder could become unbalanced
and fall when removed from
primary boom extension tube if not
properly supported.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
Pay careful attention to the
location and amount of shims
used with each wear pad.
5 Support and slide the extension tube and
extension cylinder assembly out of the boom
tube.
Crushing hazard. The primary
boom extension tube could
become unbalanced and fall when
removed from the primary boom
tube if not properly supported.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 15
Page 80
July 2004Section 4 • Repair Procedures
PRIMARY BOOM COMPONENTS
4-3
Primary Boom Lift Cylinder
The primary boom lift cylinder raises and lowers
the primary boom. The primary boom lift cylinder is
equipped with a counterbalance valve to prevent
movement in the event of a hydraulic line failure.
How to Remove the Primary
Boom Lift Cylinder
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.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Raise the primary boom until the primary boom
is horizontal.
Hydraulic Hose
REV A
4 Support the rod end and the barrel end of the
primary boom lift cylinder with a second
overhead crane or similar lifting device.
5 Tag, disconnect and plug the primary boom lift
cylinder hydraulic hoses. Cap the fittings on the
cylinder.
Bodily injury hazard. Spraying
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.
6 Remove the pin retaining fastener from the
primary boom lift cylinder rod-end pivot pin. Use
a soft metal drift to remove the pin.
The primary boom will fall if not
properly supported when the
primary boom rod-end pivot pin is
removed.
7 Place a support block across both turntable
covers under the primary boom lift cylinder.
8 Lower the lift cylinder onto the block. Protect the
cylinder rod from damage.
Crushing hazard. The primary
boom lift cylinder could fall if not
properly supported.
2 Raise the secondary boom until the primary
boom lift cylinder barrel-end pivot pin is above
the turntable covers.
end pivot pin retaining fasteners. Do not
remove the pin.
10 Use a slide hammer to remove the barrel-end
pivot pin. Carefully remove the primary boom lift
cylinder from the machine.
Crushing hazard. The lift cylinder
could become unbalanced and fall
if not properly supported and
secured to the lifting device.
Page 81
July 2004 Section 4 • Repair Procedures
REV A
4-4
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
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.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Raise the primary boom to a horizontal position.
2 Extend the primary boom until the primary
boom extension cylinder rod-end pivot pin is
accessible in the primary boom extension tube.
Hydraulic Hose
PRIMARY BOOM COMPONENTS
3 Remove the hose and cable guard from the
upper pivot.
4 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses. Cap the
fittings on the cylinder.
Bodily injury hazard. Spraying
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.
5 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.
6 Remove the barrel-end pivot pin retaining
fasteners.
7 Place a rod through the barrel-end pivot pin and
twist to remove the pin.
8 Support and slide the extension cylinder out of
the upper pivot.
Crushing hazard. The extension
cylinder could fall when removed
from the extension boom if not
properly supported.
Component damage hazard. Be
careful not to damage the
counterbalance valves on the
primary boom extension cylinder
when removing the cylinder from
the primary boom.
Component damage hazard.
Hoses and cables can be
damaged if the primary boom
extension cylinder is dragged
across them.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 17
Note the length of the cylinder
after removal. The cylinder must
be at the same length for
installation.
Page 82
July 2004Section 4 • Repair Procedures
PRIMARY BOOM COMPONENTS
4-5
Platform Leveling
Master Cylinder
The master cylinder acts as a pump for the slave
cylinder. It’s part of the closed circuit hydraulic loop
that keeps the platform level through the entire
range of boom motion. The master cylinder is
located at the base of the primary boom.
How to Remove the Platform
Leveling Master Cylinder
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
Hydraulic Hose
REV A
3 Attach overhead crane or similar lifting device to
the master cylinder.
4 Remove the pin retaining fasteners from the
master cylinder barrel-end pivot pin. Do not
remove the pin.
5 Place a rod through the barrel-end pivot pin and
twist to remove the pin.
6 Remove the pin retaining fastener from the rod-
end pivot pin.
7 Place a rod through the rod-end pivot pin and
twist to remove the pin.
8 Remove the master cylinder from the machine.
Crushing hazard. The master
cylinder could become unbalanced
and fall if not properly attached to
the overhead crane.
1 Raise the secondary boom until both the rod-
end and barrel-end pivot pins on the master
cylinder are accessible.
2 Tag, disconnect and plug the master cylinder
hydraulic hoses. Cap the fittings on the
cylinder.
Bodily injury hazard. Spraying
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. The
procedures in this section require
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 required.
Follow the disassembly steps to the point required
to complete the repair. Then re-assemble the
secondary boom by following the disassembly
steps in reverse order.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Remove the platform.
Hydraulic Hose
SECONDARY BOOM COMPONENTS
4 Remove the master cylinder. See 4-5,
Remove the Master Cylinder
5 Attach a lifting strap from an overhead crane to
to the lug on the rod end of the primary boom
lift cylinder. Then raise the primary boom lift
cylinder with the crane, to a vertical position.
6 Tag, disconnect and plug the hydraulic hoses at
the primary boom lift cylinder. Cap the fittings
on the cylinder.
Bodily injury hazard. Spraying
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.
7 Remove the pin retaining fastener from the
primary boom lift cylinder barrel-end pivot pin.
8 Use a slide hammer to remove the pin. Remove
the primary boom lift cylinder from the machine.
Crushing hazard. The primary
boom lift cylinder could become
unbalanced and fall if not properly
supported by the overhead crane.
9 Tag, disconnect and plug the hydraulic hoses
on both of the secondary boom lift cylinders.
Cap the fittings on the cylinders.
.
How to
2 Z-45/25J: Remove the jib boom.
See 3-1,
3 Remove the primary boom. See 3-2,
Remove the Primary Boom
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 21
How to Remove the Jib Boom.
.
How to
Bodily injury hazard. Spraying
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.
Page 86
July 2004Section 4 • Repair Procedures
REV ASECONDARY BOOM COMPONENTS
10 Remove the pin retaining fasteners from both
sides of the secondary boom lift cylinder rodend pivot pin and barrel-end pivot pin. Do not
remove the pins.
11 Attach a strap from an overhead crane to the
lug on the rod end of one of the secondary
boom lift cylinders for support. Do not apply any
lifting pressure.
12 Use a soft metal drift to drive the barrel-end
pivot pin half way out. Lower the barrel end of
the secondary boom lift cylinder and let it hang
down.
13 Use a soft metal drift to drive the rod-end pivot
pin half way out.
14 Remove the secondary boom lift cylinder from
the machine.
15 Repeat steps 11 through 14 for the other
secondary boom lift cylinder.
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly attached to the overhead
crane.
Component damage hazard.
When removing a secondary
boom lift cylinder from the
machine, be careful not to damage
the counterbalance valve at the
barrel end of the cylinder.
16 Attach a lifting strap from an overhead crane to
the upper pivot for support. Do not lift it.
17 Attach a lifting strap from a second overhead
crane to the number 1 arm at the mid-point
between the upper pivot and mid-pivot.
18 Remove the pin retaining fasteners from the
number 1 arm pivot pins at the mid-pivot and
the upper pivot. Do not remove the pins.
19 Use a soft metal drift to drive both pins out.
20 Remove the number 1 arm from the machine.
Crushing hazard. The number 1
arm could become unbalanced
and fall when removed from the
machine if not properly attached to
the overhead crane.
Crushing hazard. The upper pivot
could fall when the number 1 arm
is removed from the machine if not
properly supported by the
overhead crane.
21 Using the overhead crane attached to upper
pivot, raise the secondary boom assembly
approximately 30 inches / 76 cm.
22 Insert a 4 x 4 x 11 inch / 10 x 10 x 30 cm block
between the number 2 arm and the boom rest.
Then lower the secondary boom assembly onto
the block.
Crushing hazard. The secondary
boom assembly could fall if not
properly supported by the
4 x 4 x 11 inch / 10 x 10 x
30 cm block.
23 Pull all of the cables and hoses out through the
upper pivot.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
24 Remove the hose and cable covers from the top
of the number 2 arm.
25 Pull all of the hoses and cables out of the upper
pivot and out through the mid-pivot. Lay the
hoses and cables on the ground.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
26 Remove the pin retaining fastener from the
number 2 arm pivot pin at the upper pivot. Use
a soft metal drift to remove the pin.
27 Remove the upper pivot from the machine.
Crushing hazard. The upper pivot
could become unbalanced and fall
when removed from the machine if
not properly attached to the
overhead crane.
28 Attach the lifting strap from an overhead crane
to the number 2 arm at the upper pivot end.
29 Raise the number 2 arm slightly and remove the
4 x 4 x 11 inch / 10 x 10 x 30 cm block.
31 Insert a 4 x 4 x 81/2 inch / 10 x 10 x 20 cm block
between the number 3 arm and the number 4
arm at the mid-pivot end.
32 Attach a lifting strap from the overhead crane to
the mid-pivot for support. Do not lift it.
33 Remove the pin retaining fasteners from the
number 2, 3 and 4 arm pivot pins at the
mid-pivot. Do not remove the pins.
34 Use a soft metal drift to drive each pin out. Then
remove the mid-pivot from the secondary boom
assembly.
Crushing hazard. The mid-pivot
could become unbalanced and fall
when removed from the
secondary boom assembly if not
properly supported by the
overhead crane.
35 Attach the lifting strap from an overhead crane
to the center point of the number 2 arm for
support. Do not lift it.
36 Remove the pin retaining fasteners from both
compression link pivot pins. Do not remove the
pins.
37 Use a soft metal drift to remove the lower
compression link pivot pin at the number 3 arm.
38 Support the compression link with an
appropriate lifting device.
30 Lower the number 2 arm onto the boom rest
pad.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 23
Page 88
July 2004Section 4 • Repair Procedures
REV ASECONDARY BOOM COMPONENTS
39 Use a soft metal drift to remove the upper
compression link pivot pin from the number 2
arm. Remove the compression link from the
machine.
Crushing hazard. The number 2
arm could fall when the
compression link is disconnected
from the number 2 arm if not
properly supported by the
overhead crane.
Crushing hazard. The
compression link may fall if not
properly supported when removed
from the secondary boom
assembly.
40 Remove the number 2 arm from the machine.
Crushing hazard. The number 2
arm could become unbalanced
and fall when removed from the
secondary boom assembly if not
properly supported by the
overhead crane.
41 Remove the upper and lower hose and cable
covers from the number 3 arm.
42 Pull all of the cables and hoses from the
number 3 arm and lay them over the turntable
counterweight.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
43 Open the ground controls side turntable cover.
44 Remove the fuel tank.
Explosion and fire hazard. Engine
fuels are combustible. Perform this
procedure in an open, wellventilated area away from heaters,
sparks, flames and lighted
tobacco. Always have an
approved fire extinguisher within
easy reach.
45 Remove the retaining fastener from the ground
control box and function manifold pivot plate.
46 Lower the ground control box and function
manifold pivot plate to access the number 3
arm pivot pin.
47 Attach the lifting strap from the overhead crane
to the centerpoint of the number 3 arm for
support. Do not lift it.
48 Remove the mounting fasteners from the cover
located in the boom storage area to access the
number 3 and number 4 arm pivot pin retaining
fasteners at the turntable pivot.
49 Remove the pin retaining fasteners from the
number 3 arm at the turntable pivot. Do not
remove the pin.
50 Use a slide hammer to remove the number 3
arm pivot pin from the turntable pivot through
the access hole behind the ground control box.
51 Remove the number 3 arm from the machine.
Crushing hazard. The number 3
arm could become unbalanced
and fall when removed from the
machine if not properly supported
by the overhead crane.
switch mounting fasteners from the number 4
arm at the mid-pivot end. Do not disconnect the
wiring.
53 Remove the pin retaining fasteners from the
number 4 arm at the turntable pivot. Do not
remove the pin.
54 Attach a lifting strap from the overhead crane to
the center point of the number 4 arm. Do not
lift it.
55 Use a slide hammer to remove the number 4
arm from the turntable pivot through the ground
controls side bulkhead.
56 Remove the number 4 arm from the machine.
Crushing hazard. The number 4
arm could become unbalanced
and fall when removed from the
machine if not properly supported
by the overhead crane.
SECONDARY BOOM COMPONENTS
5-2
Secondary Boom Lift Cylinders
There are two secondary boom lift cylinders
incorporated in the structure of the secondary
boom assembly. These cylinders operate in
parallel and require hydraulic pressure to extend
and retract. Each secondary boom lift cylinder is
equipped with a counterbalance valve to prevent
movement in the event of a hydraulic line failure.
How to Remove a Secondary
Boom Lift Cylinder
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.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation.
Refer to Section 2,
and Fitting Torque Specifications.
1 Lower the secondary boom to the stowed
position.
2 Raise the primary boom so that it is above the
secondary boom lift cylinder rod-end pivot pin.
Hydraulic Hose
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 25
Page 90
July 2004Section 4 • Repair Procedures
SECONDARY BOOM COMPONENTS
3 Tag, disconnect and plug the hydraulic hoses
on the secondary boom lift cylinder.
Bodily injury hazard. Spraying
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.
4 Remove the pin retaining fasteners from the
secondary boom lift cylinder rod-end pivot pin
and barrel-end pivot pin. Do not remove the
pins.
5 Attach a strap from an overhead crane to the
lug on the rod end of the secondary boom lift
cylinder for support. Do not apply any lifting
pressure.
6 Use a soft metal drift to drive the barrel-end
pivot pin half way out. Lower the barrel end of
the secondary boom lift cylinder and let it hang
down.
REV A
7 Use a soft metal drift to drive the rod-end pivot
pin half way out.
8 Remove the secondary boom lift cylinder from
the machine.
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly attached to the overhead
crane.
Component damage hazard.
When removing a secondary
boom lift cylinder from the
machine, be careful not to damage
the counterbalance valve at the
barrel end of the cylinder.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 27
Page 92
July 2004Section 4 • Repair Procedures
KUBOTA Z482-E ENGINE
How to Install the Engine Drive
Pulley
The generator pulley must already
be installed before performing this
procedure. See 7-1,
the Generator Pulley
1 Align the woodruff key on the engine shaft with
the slot in the pulley bushing and slide the
pulley bushing onto the engine shaft. Do not
tighten the set screw.
2 Align the flywheel side of the pulley bushing on
the engine shaft with the outer face of the
generator pulley using a straightedge.
a
b
How to Install
.
c
REV A
3 Tighten the set screw on the pulley bushing
hand tight.
4 Slide the engine pulley onto the pulley bushing.
5 Install the pulley mounting bolts and tighten
them to specification. Refer to Section 2,
Specifications
.
Component damage hazard. Do
not overtighten the pulley
mounting bolts. There must be a
gap visible between the engine
drive pulley and the pulley
bushing.
engine out away from the machine to access
the generator pulley.
3 Loosen the tension adjustment bolt on the
generator.
4 Pull the generator away from the machine and
remove the belts from the generator pulley.
5 Disconnect the battery cables from the engine
battery.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
Generator
How to Install the Generator
Pulley
The pulley on the generator must
be installed before installing the
engine drive pulley.
1 Align the woodruff key on the generator shaft
with the slot in the pulley and slide the pulley all
the way onto the generator shaft.
2 Install the flat washer and pulley retaining nut
onto the generator shaft, then torque the nut to
specification. Refer to Section 2,
3 Adjust the tension of the generator belts.
See 7-2,
How to Adjust the Generator Belts.
Specifications
.
6 Remove the engine battery hold down, then
remove the battery from the machine.
7 Remove the generator pulley retaining nut from
the generator shaft.
8 Slide the pulley off of the generator shaft.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 29
Page 94
July 2004Section 4 • Repair Procedures
GENERATOR
7-2
Generator Belts
How to Adjust the Generator
Belts
1 Disconnect the battery packs.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
2 Remove the engine pivot plate latch retainer.
3 Open the engine pivot plate latch and swing the
engine out away from the machine to access
the generator belts.
4 Loosen the tension adjustment bolt on the
generator.
5 Push the generator towards the machine and
tighten the adjustment bolt.
6 Check the generator belts for proper tension.
Refer to Section 2,
deflection is not within specification, perform
steps 4 and 5 and re-check the belt tension.
a
Specifications
. If the belt
REV A
7-3
Generator Voltage Regulator
How to Adjust the Generator
Voltage Regulator
The voltage regulator regulates the output voltage
of the generator. A properly adjusted voltage
regulator is essential to good generator
performance and service life. A defective or
improperly adjusted voltage regulator could result
in component damage.
Be sure the batteries are fully
charged before performing this
procedure.
1 Remove the engine pivot plate latch retainer.
2 Open the engine pivot plate latch and swing the
engine out away from the machine to access
the generator.
3 Connect the positive lead of a voltmeter to the
POS terminal on the generator and the negative
lead of the voltmeter to the NEG terminal on the
generator.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
move the rpm select toggle switch to the
maintained high idle position. Check the voltage
on the generator.
Result: The voltage should be 54V DC.
5 If the voltage reading is not 54V DC, insert a
small flat blade screwdriver into the
potentiometer located inside of the generator.
Use the access hole on the back of the
generator labeled VOLTADJ.
Component damage hazard. Be
sure that the screwdriver is
properly inserted into the
potentiometer or the generator
and/or voltage regulator may
become damaged.
6 Carefully adjust the potentiometer to obtain a
54V DC voltage reading. Turn the
potentiometer clockwise to increase the voltage
or counterclockwise to decrease the voltage.
Do not rotate the potentiometer past the internal
stops.
Component damage hazard. The
voltage regulator inside the
generator will become damaged if
the potentiometer is rotated past
the internal stops.
GENERATOR
How to Replace the Voltage
Regulator
1 Disconnect the battery packs from the machine.
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
2 Remove the engine pivot plate latch retainer.
3 Open the engine pivot plate latch and swing the
engine out away from the machine to access
the generator.
4 Tag and disconnect the positive and negative
battery cables from the generator.
5 Loosen the tension adjustment bolt on the
generator.
6 Pull the generator away from the machine and
remove the belts from the generator pulley.
7 Remove the generator mounting fasteners then
remove the generator from the machine.
8 Remove the 3 nuts from the battery cable
terminal posts.
9 Remove the 3 screws that hold the plastic cover
onto the generator. Carefully remove the cover.
The maximum range of motion of
the potentiometer on the voltage
regulator is 280° and the
maximum allowed torque is
5 oz-in / 0.035 Nm.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 31
Page 96
July 2004Section 4 • Repair Procedures
GENERATOR
10 Locate the 3 white wires that lead from the
voltage regulator to the negative rectifier
assembly.
negative rectifier assembly, then remove the
wires.
Do not remove the spacers from
the underneath the wires on the
negative rectifier assembly.
12 Locate the red wire that leads from the voltage
regulator to the positive rectifier assembly.
13 Remove the screw that attaches the red wire to
the positive recitfier assembly.
g
14 Remove the #4 nut that attaches the black wire
to the voltage regulator.
h
15 Remove the voltage regulator mounting screws.
16 Remove the voltage regulator while carefully
guiding the red and black wires from
underneath the bottom support of the positive
and negative rectifier assembly.
17 Install the new voltage regulator by following the
previous steps in reverse order.
18 Apply Loctite® removable thread sealant onto
the voltage regulator mounting fasteners and
torque to specification. Refer to Section 2,
Specifications
.
19 Torque all fasteners to specification. Refer to
Section 2,
Specifications
.
20 Install the plastic cover onto the generator then
install the generator onto the machine.
21 Adjust the generator belts. See 7-2,
Adjust the Generator Belts.
22 Adjust the voltage regulator. See 7-3,
Adjust the Voltage Regulator.
Component damage hazard. The
voltage regulator and/or generator
may become damaged if the
voltage regulator is not properly
adjusted after replacement.
When the voltage regulator is
replaced, the voltage regulator
must be adjusted. See 7-3,
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Place a suitable container under the hydraulic
tank. See capacity specifications.
2 Remove the drain plug from the hydraulic tank.
3 Completely drain the tank into a suitable
container.
Hydraulic Hose and
Hydraulic Pumps
8-2
Function Pump
How to Remove the Function
Pump
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2,
Fitting Torque Specifications.
1 Place a suitable container under the hydraulic
tank. See capacity specifications.
2 Remove the drain plug from the hydraulic tank.
3 Completely drain the tank into a suitable
container.
Hydraulic Hose and
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
4 Remove the engine pivot plate latch retainer.
5 Open the engine pivot plate latch and swing the
engine pivot plate out away from the machine.
6 Tag, disconnect and plug the hydraulic hoses
from the pump.
Bodily injury hazard. Spraying
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.
7 Remove the pump mounting bolts. Carefully
remove the pump.
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
4 Remove the engine pivot plate latch retainer.
5 Open the engine pivot plate latch and swing the
engine pivot plate out away from the machine.
6 Tag, disconnect and plug the hydraulic hoses
from the pump.
Bodily injury hazard. Spraying
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.
7 Remove the pump mounting bolts. Carefully
remove the pump.
Part No. 106488Genie Z-45/25 Bi-Energy and Genie Z-45/25J Bi-Energy4 - 33
Page 98
August 2004Section 4 • Repair Procedures
Manifolds
REV B
9-1
Function Manifold Components (before serial number 17841)
The function manifold is located next to the hydraulic tank underneath the ground controls side cover.
IndexSchematic
No.Description ItemFunctionTorque
1Differential sensing valve .................. A ........... All functions....................................... 20-25 ft-lbs / 27-34 Nm