Snorkel TB125J User Manual

0192216

OPERATOR’S

MANUAL

Part Number 0192214

September 2011

Replaces September 2006

The aerial platform is not electrically insulated. Death or serious injury will result from contact
with, or inadequate clearance from, an energized conductor.

Do not go closer than the minimum safe approach distance as dened by the Minimum Safe
Approach Distance section in Chapter 3–Safety.

Regard all conductors as energized.

Allow for electrical wire sag and aerial platform sway.

If the platform, booms, or any part of the aerial platform contacts a high-voltage electrical conductor,
the entire machine can become electrically charged.

If that happens, remain on the machine and do not contact any other structure or object. This in­cludes the ground, adjacent buildings, poles, and any other objects that are not part of the aerial
platform.

Such contact could make your body a conductor to the other object, creating an electrical shock
hazard resulting in death or serious injury.

If an aerial platform is in contact with an energized conductor the platform operator must warn ground
personnel in the vicinity to stay away. Their bodies can conduct electricity creating an electrical shock
hazard resulting in death or serious injury.

Do not approach or leave the aerial platform until the electricity has been turned off.

Do not attempt to operate the lower controls when the platform, booms, or any part of the aerial
platform is in contact with a high-voltage electrical conductor or if there is an immediate danger of
such contact.

Personnel on or near an aerial platform must be continuously aware of electrical hazards, recogniz­ing that death or serious injury can result from contact with an energized conductor.

California

Proposition 65 Warning

Battery posts, terminals and related accessories contain lead
and lead components, a chemical known to the State of Cali­fornia to cause cancer and birth defects or other reproductive
harm. Wash hands after handling.

California

Proposition 65 Warning

Diesel and gasoline engine exhaust and some of its constitu­ents are known by the State of California to cause cancer, birth
defects and other reproductive harm.

Table of Contents

Chapter 1 – Introduction

Aerial Platform Features .............................................1

Options .......................................................................1

Operator’s Manual ......................................................1

Safety Alerts ...............................................................1

Operation ....................................................................2

Maintenance ...............................................................2

Manual of Responsibilities ..........................................2

Additional Information .................................................2

Chapter 2 – Specications

Component Identication ............................................3

Working Envelope ......................................................4

General Specications................................................5

Aerial Platform ........................................................5

Platform ..................................................................5

Function Speed ......................................................5

Drive System ..........................................................5

Tires ........................................................................5

Electrical System ....................................................5

Hydraulic System ....................................................5

Engine ....................................................................5

Ambient Air Temperature Operating Range ............5

Maximum Wind Speed ...........................................5

Engine Specications .................................................6

Engine Oil Viscosity ....................................................7

Cummins B3.3 ........................................................7

General Motors 2.4L ...............................................7

Chapter 3 – Safety

Electrocution Hazards ................................................9

Minimum Safe Approach Distance .............................9

Prestart Inspection....................................................10

Work Place Inspection and Practices .......................10

Operation ..................................................................10

Tip-Over and Falling Hazards ...................................10

Electrical System ...................................................... 11

Hydraulic System...................................................... 11

Engine and Fuel Handling Precautions ....................11

Placards and Decals.................................................12

Chapter 4 – Safety Devices

Emergency Stop Controls.........................................13

Emergency Power System .......................................13

Emergency Bleed Down System ..............................13

Emergency Lowering Knob ......................................14

Axle/Boom Interlock..................................................14

Ground Operation Switch .........................................14

Platform Foot Switch ................................................14

Guardrails .................................................................14

Lanyard Anchors.......................................................14

Envelope Management System................................15

Height Restriction .................................................15

Ground Fault Circuit Interrupter ................................15

Tilt Alarm ...................................................................15

Engine Protection Systems ......................................16

High Engine Temperature Alarm ...........................16

Low Oil Pressure Alarm ........................................16

Horn ..........................................................................16

Drive Motion Alarm ...................................................16

Flashing Light ...........................................................16

Driving Lights ............................................................16

Platform Work Lights ................................................16

Chapter 5 – Gauges and Displays

Hour Meter................................................................17

Engine Temperature Gauge .....................................17

Ammeter ...................................................................17

Engine Air Filter Gauge ............................................17

Fuel...........................................................................17

Engine Oil .................................................................18

Hydraulic Fluid Filter Gauge .....................................18

Fluid Level and Temperature Gauge ........................18

Chapter 6 – Controls

Battery Disconnect Switch ........................................19

Axle Controls ............................................................19

High Range Speed Selector – 4x4 ...........................19

Lower Controls .........................................................19

Start Switch ..........................................................20

Emergency Stop Button ........................................20

Control Selector Switch ........................................20

Ground Operation Switch .....................................20

Boom/Axle Switch .................................................20

Rotation Switch .....................................................20

Boom Elevation Switch .........................................20

Boom Extension Switch ........................................20

Boom Speed Knob ...............................................20

Jib Articulation Switch ...........................................20

Platform Level Switch ...........................................20

Platform Rotate Switch .........................................20

Engine/Emergency Power Switch ........................21

Engine Speed Switch ...........................................21

Fuel Switch ...........................................................21

Hydraulic System Warm-Up Switch ......................21

Circuit Breaker Reset Buttons ..................................21

Upper Controls .........................................................21

Start Switch ..........................................................22

Emergency Stop Button ........................................22

Boom Joystick ......................................................22

Drive Joystick .......................................................22

Drive Range Switch ..............................................22

Jib Articulation Joystick .........................................22

Platform Level Switch ...........................................22

Platform Rotate Switch .........................................23

Boom Extend/Retract Joystick .............................. 23

Engine/Emergency Power Switch ........................23

Throttle Switch ......................................................23

Horn Button ..........................................................23

T125J/TB125J – 0192214

Table of Contents

Platform Foot Switch ............................................23

Machine/Generator Switch .......................................23

Driving and Platform Work Lights ............................. 23

Chapter 7 – Prestart Inspection

Operator’s Manual ....................................................25

Engine ......................................................................25

Oil Level ................................................................25

Coolant .................................................................25

Radiator ................................................................25

Fuel Tank .............................................................. 25

Fuel Line ...............................................................26

Air Filter ................................................................26

Charging System .................................................26

Electrical System ......................................................26

Battery Fluid Level ................................................27

Battery Terminals ..................................................27

Cables and Wiring Harness ..................................27

Hydraulic System......................................................27

Fluid Level ............................................................27

Fluid Filter .............................................................28

Hoses, Tubes, and Fittings ...................................28

Tires and Wheels ......................................................28

Axle/Boom Interlock..................................................29

Lower Control Station ...............................................29

Operating Controls ...............................................30

Emergency Stop ...................................................30

Emergency Power ................................................30

Envelope Management System ............................ 30

Emergency Lowering ................................................31

Level Sensor.............................................................31

Flashing Light ...........................................................32

Sandblast Protection Kit ...........................................32

Structures .................................................................32

Weldments ............................................................32

Slide Pads ............................................................32

Wire Ropes ...........................................................32

Fasteners ..............................................................34

Upper Control Station ...............................................34

Guardrail System ..................................................34

Lanyard Anchors ...................................................34

Operating Controls ...............................................34

Emergency Stop ...................................................35

Emergency Power ................................................35

Horn ......................................................................35

Electrical Power Outlet .........................................35

Drive Motion Alarm ...............................................36

Driving and Work Lights........................................36

Platform Control Cover .........................................36

Tow Kit ......................................................................36

Placards and Decals.................................................36

Prestart Inspection Checklist ....................................41

Chapter 8 – Operation

Cold Weather Start-Up .............................................43

Engine Cold Weather Start Kit ..................................43

Cummins – Block Heater ......................................43

GM – Radiator Hose In-Line .................................43

Hydraulic System Cold Weather Warm-Up .............43

Hydraulic System Warm-Up Switch ...................... 43

Manually Warming The Hydraulic System ............ 44

Preparing for Operation ............................................44

Lower Controls .........................................................44

Axle Controls ............................................................45

Extending The Rear Axles ....................................45

Retracting The Rear Axles ....................................46

Upper Controls .........................................................46

Boom Operation ...................................................46

Driving and Steering .............................................47

Drive Speeds ........................................................47

Motion Warning Alarm ..........................................48

Four Wheel Drive......................................................48

High Range Speed Selector .................................48

AC Generator ...........................................................48

Dual Fuel ..................................................................48

Air Line .....................................................................49

Driving Lights ............................................................49

Platform Work Lights ................................................49

Chapter 9 – Stowing and Transporting

Stowing .....................................................................51

Tucked Stow .........................................................51

Transporting .............................................................51

Driving ..................................................................52

Winching ...............................................................52

Hoisting .................................................................53

Securing for Transport ..........................................53

Chapter 10 – Emergency Operation

Emergency Power System .......................................55

Lower Controls .....................................................55

Upper Controls .....................................................55

Electric Emergency Bleed Down System .................56

Manual Emergency Bleed Down System .................57

Towing ......................................................................57

Chapter 11 – Troubleshooting

Troubleshooting Chart ..............................................59

Appendix A – Glossary

Limited Warranty

T125J/TB125J – 0192214

Chapter 1 – Introduction

Aerial Platform Features

The aerial platform is a boom-supported elevating work
platform used to raise personnel, their tools, and material
to the workstation. The booms are raised and lowered
with hydraulic cylinders. Hydraulic motors on the drive
wheels provide power to move the aerial platform.

The standard machine includes the following features.

Four wheel drive



Foam lled tires



Extendable rear axles



High engine temperature shut down



Low oil pressure shut down



Hour meter



Ammeter



Coolant temperature gauge



Hydraulic oil level and temperature gauges



Horn



5 degree tilt alarm



360 degree continuous turntable rotation



180 degree platform rotation



Tie-down/Lifting lugs



30″ x 92″ (76 cm x 234 cm) aluminum 500 lb (226



kg) capacity platform
Envelope Management System (EMS)



Two safety lanyard attachments



Emergency bleed down systems



Built-in chassis jack



Keyed master switch



Powered self-stowing sliding platform



The machine is powered with the following engine:

Cummins B3.3 – Diesel



GM 2.4L – Gasoline, LPG or dual fuel



The aerial platform has been manufactured to conform
to all applicable requirements of the following organiza­tions:

Occupational Safety and Health Administration



(OSHA)
American National Standards Institute (ANSI)



Tow kit



Airline to platform



AC generator – hydraulic powered, 120 V



Non self-stowing platform



Canadian Standards Association (CSA)



Operator’s Manual

This manual provides information for safe and proper
operation of the aerial platform. Some information in
this manual refers to options that may or may not be on
your machine. Read and understand the information
in this Operator’s Manual before operating the aerial
platform on the job.

Additional copies of this manual may be ordered from
Snorkel. Supply the model and manual part number
from the front cover to assure that the correct manual
will be supplied.

All information in this manual is based on the latest
product information at the time of publication. Snorkel
reserves the right to make product changes at any time
without obligation.

Safety Alerts

A safety alert symbol is used throughout this manual
to indicate danger, warning, and caution instructions.
Follow these instructions to reduce the likelihood of
personal injury and property damage. The terms dan­ger, warning, and caution indicate varying degrees of
personal injury or property damage that can result if the
instruction is not followed.

Danger

Indicates an imminently hazardous situation which,

if not avoided, will result in death or serious injury.
This signal word is to be used in the most extreme

situations.

Warning

Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious in­jury.

Options

The following options may be provided on the ma­chine.

Drive motion alarm



Flashing light



Driving lights



Platform work lights – ood or halogen



Platform control cover



Dual fuel with 20 gallon gasoline tank



Swinging platform gate



Sandblast protection kit



Cold weather start kit



Hydraulic system cold weather warm-up kit



T125J/TB125J – 0192214 5

Indicates a potentially hazardous situation which,

if not avoided, may result in minor or moderate
injury. It may also be used to alert against unsafe

practices.

Notes
Notes are used to provide special information or helpful
hints to assist in aerial platform operation, but do not
indicate a hazardous situation.

Caution

Chapter 1 – Introduction

Operation

The aerial platform has built-in safety features and has
been factory tested for compliance with Snorkel speci-

cations and industry standards. However, any aerial

platform can be potentially dangerous in the hands of
untrained or careless operators.

Warning

The potential for an accident increases when the

aerial platform is operated by personnel who are not

trained and authorized. Death or serious injury can
result from such accidents. Read and understand
the information in this manual and on the placards

and decals on the machine before operating the
aerial platform on the job.

Training is essential and must be performed by a

qualied person. Become procient in knowledge and

actual operation before using the aerial platform on
the job. You must be trained and authorized to perform
any functions of the aerial platform. Operation of the
aerial platform must be within the scope of the machine

specications.

The operator bears ultimate responsibility for following
all manufacturer’s instructions and warnings, regulations
and safety rules of their employer and/or any state or
federal law.

Do not modify this aerial platform without prior writ­ten consent of the Snorkel Engineering Department.

Modication may void the warranty, adversely affect

stability, or affect the operational characteristics of the
aerial platform.

Manual of Responsibilities

All owners and users of the aerial platform must read,
understand, and comply with all applicable regulations.
Ultimate compliance to national safety regulations is the
responsibility of the user and their employer.

ANSI publications clearly identify the responsibilities of
all personnel who may be involved with the aerial plat­form. A reprint of “Manual of Responsibilities for Dealers,
Owners, Users, Operators, Lessors and Lessees of
ANSI/SIA A92.5-2006 Boom-Supported Elevating Work
Platforms” is available from Snorkel dealers or from the
factory upon request.

Copies are also available from:

Scaffold Industry Association, Inc.
PO Box 20574
Phoenix, AZ 85036-0574 USA

Additional Information

For additional information contact your local dealer or
Snorkel at:

Maintenance

Every person who maintains, inspects, tests, or repairs

the aerial platform must be qualied to do so. Following

the daily prestart inspection in this Operator’s Manual will
help keep the aerial platform in optimum working condi­tion. Other maintenance functions must be performed

by maintenance personnel who are qualied to work on

the aerial platform.

Snorkel International
P.O. Box 1160
St. Joseph, MO 64502-1160 USA
1-800-255-0317

http://www.snorkellifts.com

6 T125J/TB125J – 0192214

Component Identication

Chapter 2 – Specications

Upper Controls

Main Boom

Batteries

LP Fuel Tank

Fuel Tank

Right Side

Second Intermediate

Boom

Hydraulic Fluid Tank

Operator’s

Manual

Chassis

First Intermediate

Boom

and Filter

Emergency

Lowering Valve

Tip Boom

Lower

Controls

Platform

Jib

Engine

Wiring Box

T125J/TB125J – 0192214 7

Battery Disconnect

Switch

Left Side

Platform Foot Switch

Chapter 2 – Specications

Working Envelope

Feet

(Meters)

130

(39.6)

120

(36.6)

110

(33.5)

100

(30.5)

90

(27.4)

80

(24.4)

70

(21.3)

60

(18.3)

50

(15.2)

40

(12.2)

30

(9.1)

20

(6.1)

10

(3.0)

0

10

(3.0)

70

(21.3)60(18.3)50(15.2)40(12.2)

8 T125J/TB125J – 0192214

30

(9.1)

20

(6.1)

10

(3.0)

0

10

(3.0)

20

(6.1)

General Specications

Chapter 2 – Specications

Aerial Platform

Working height 130′ 6″ (39.8 m)
Maximum platform height 124′ 6″′ (37.9 m)
Horizontal reach 65′ (19.8 m)
Main boom
Articulation -12° to +75°
Extension 26′ (7.9 m)
Turntable rotation 360° continuous
Turning radius, inside
Axles extended 19′ (5.8 m)
Wheelbase 12′ (3.7 m)
Ground clearance 13″ (33 cm)
Maximum wheel load 21,100 lbs (9571 kg)
Maximum ground pressure 91 psi (628 kPa)
Weight, EVW
Approximate 40,500 lbs (18,370 kg)
Width
Axles retracted 8′ 6″ (2.6 m)
Axles extended 12′ 10″ (3.9 m)
Stowed length 39′ 7″ (12.1 m)
Stowed height 10′ 4″ (3.1 m)

Platform

Dimensions
Aluminum 30″ x 92″ (76 cm x 234 cm)
Rated work load
Aluminum 76 cm x 234 cm 500 lb (227 kg)
Rotation 74° CW / 87° CCW
Maximum number of occupants 2 people
Optional AC generator 120 V

Function Speed

Turntable rotation
Booms retracted 120 to 140 seconds
Booms extended 320 to 360 seconds
Main boom
Up
Booms retracted 60 to 80 seconds
Booms extended 80 to 100 seconds
Down
Booms retracted 65 to 85 seconds
Booms extended 85 to 105 seconds
Extend 80 to 100 seconds
Retract 80 to 100 seconds
Jib Boom
Up 20 to 40 seconds
Down 30 to 50 seconds
Platform rotation 16 to 20 seconds
Drive – four wheel drive
Booms down and retracted
High speed, low torque 3.0 mph (4.8 km/h)
Mid speed, mid torque 1.5 mph (2.4 km/h)
Low speed, high torque 0.75 mph (1.2 km/h)
Booms up and/or extended
To mid elevation 0.75 mph (1.2 km/h)
Above mid elevation creep (0.06 m/sec)

Drive System

Standard Four wheel drive
Gradeability 30%

Tires

Foam lled 18″ x 22.5″ (46 cm x 56 cm), 18 ply

Electrical System

Voltage 12 V DC negative chassis ground
Source Three - 12 V 550 CCA batteries
Fluid recommended distilled water

Hydraulic System

Maximum pressure
Four wheel drive 2,800 psi (19,320 kPa)
Reservoir capacity 60 US gal (227 l)
System capacity 90 US gal (341 l)
Maximum operating temperature 200°F (93°C)
Hydraulic uid recommended
Above 10°F (-13°C) Mobil DTE-13M (ISO VG32)
Below 10°F (-13°C) Mobil DTE-11M (ISO VG15)

Engine

Diesel Cummins B3.3
Gasoline and/or LPG General Motors 2.4L

Fuel Tank Capacity

Gasoline or Diesel 54 US gal (204 l)
LPG 43.5 lbs (19.7 kg)

Ambient Air Temperature Operating Range

Fahrenheit 0°F to 110°F
Celsius -18°C to 43°C

Maximum Wind Speed

Gust or steady 28 mph (45 km/h)

T125J/TB125J – 0192214 9

Chapter 2 – Specications

Engine Specications

Engine Displacement Fuel Grade Coolant

Diesel

ASTM No. 20 fuel with a

Cummins

B3.3

199 cu. in.

(3.26 liter)

minimum Cetane number
of 40.1 For operating tem-

peratures below 32°F (0°C)

use winterized No. 2D.

50% Water

50% Antifreeze

Operating

Temperature

140°F to 212°F

2

60°C to 100°C

Oil

Capacity

2 gal (7.5 liter)

total

1.6 qt (1.5 liter)
Low to High

Oil

Grade

SAE

15W-40

API:

CH4/SG

With lter:

GM 2.4L

150 cu. in.

(2.4 liter)

Gasoline

Unleaded 87 octane

LPG

HD-5

50% Water

50% Antifreeze

176°F to 183°F

80°C to 84°C

1.12 US gal

(4.5 liter)

Without lter:

1.18 US gal

ILSAC

GF-4

(4.25 liter)

Note 1: Refer to the engine manufacturers manual for specic fuel recommendations and specications.

Note 2: Ethylene glycol or Propylene glycol may be used. Refer to the Cummins® Operation and Maintenance Manual B3.3 Series Engines

Note 3: Refer to the engine manufacturers manual for specic lubricating oil recommendations and specications.

Note 4: API Starburst symbol on GF-4 oils reads “API Service SM.”

for specic coolant recommendations and specications.

3

4

10 T125J/TB125J – 0192214

Engine Oil Viscosity

°F

°F

-4 0

-3 1

-2 2

-1 3

-4

5

14

23 32

41

50 59 68 77 86 104

122

°C

°C

-4 0

-3 5

-3 0 -2 5 -20 -15 -1 0

-5

0

10

15 2 0 25

30

40 5 0

5

S A E 5 W/3 0

S A E 0 W/3 0

Cummins B3.3

General Motors 2.4L

Chapter 2 – Specications

Note
No straight weight oils and no specialized diesel oils are
to be used in GM engines.

T125J/TB125J – 0192214 11

Chapter 2 – Specications

12 T125J/TB125J – 0192214

Chapter 3 – Safety

D e n o tes
prohib ite d
zone

Knowledge of the information in this manual, and
proper training, provide a basis for safely operating the
aerial platform. Know the location of all controls and
how they operate to act quickly and responsibly in an
emergency.

Safety devices reduce the likelihood of an accident.
Never disable, modify, or ignore any safety device.
Safety alerts in this manual indicate situations where
accidents may occur.

If any malfunction, hazard or potentially unsafe condi­tion relating to capacity, intended use, or safe operation
is suspected, stop aerial platform operation and seek
assistance.

The operator bears ultimate responsibility for following
all manufacturer’s instructions and warnings, regulations
and safety rules of their employer and/or any state or
federal law.

Electrocution Hazards

The aerial platform is made of metal components and is
not insulated. Regard all conductors as energized. Do
not operate outside during a thunderstorm.

Minimum Safe Approach Distance

Minimum safe approach distances to energized power
lines and their associated parts must be observed while
operating the aerial platform.

Danger

The aerial platform is not electrically insulated.
Death or serious injury can result from contact
with, or inadequate clearance from, an energized
conductor. Do not go closer than the minimum safe

approach distance as dened by ANSI.

ANSI publications dene minimum distances that must

be observed when working near bus bars and energized
power lines. Table 1 and Figure 3 are reprinted courtesy
of Scaffold Industry Association, ANSI/SIA A92.5.

Voltage Range

(Phase to Phase)

0 to 300V Avoid Contact

Over 300V to 50kV 10 3.05

Over 50kV to 200kV 15 4.60

Over 200kV to 350Kv 20 6.10

Over 350kV to 500kV 25 7.62

Over 500kV to 750kV 35 10.67

Over 750kV to 1000kV 45 13.72

Minimum Safe Approach Distance

Feet Meters

Table 1 – Minimum Safe Approach Distance

Figure 3 – Minimum Safe Approach Distance

T125J/TB125J – 0192214 13

Chapter 3 – Safety

Prestart Inspection

Perform a prestart inspection before each shift as
described in Chapter 7. Do not use the aerial platform
on the job unless you are trained and authorized to do
so.

Work Place Inspection and Practices

Do not use the aerial platform as a ground connection
when welding. The welding ground clamp must be at­tached to the same structure that is being welded. Elec-

trical current ow can be very intense, causing serious

internal damage to some components.

Inspect the area before and during aerial platform use.
The following are some potential hazards that may be
in the work place.

• Debris

• Slopes

• Drop-offs or holes

• Bumps and oor obstructions

• Overhead obstructions

• Unauthorized persons

• High voltage conductors

• Wind and weather conditions

• Inadequate surface and support to withstand load
forces applied by the aerial platform in all operating

congurations

Always look in the direction of movement. Drive with care
and at speeds compatible with the work place condi­tions. Use caution when driving over rough ground, on
slopes and when turning. Do not engage in any form of
horseplay or permit riders any place other than in the
platform.

Secure all accessories, containers, tools and other
materials in the platform to prevent them from acciden­tally falling or being kicked off the platform. Remove all
objects that do not belong in or on the aerial platform.

Never steady the platform by positioning it against an­other platform.

Do not operate the aerial platform if it is damaged or not

functioning properly. Qualied maintenance personnel

must correct the problem before putting the aerial plat­form back into service.

Operation

Use three points of support when entering or exiting
the platform. For example, use two hands and one foot
when climbing into the platform.

Never cover the platform oor grating or otherwise ob­struct your view below. Make sure the area below the
platform is free of personnel before lowering.

Before using the aerial platform in any hazardous (clas-

sied) location, make certain it is approved and of the

type required for use in that particular location.

Know and understand the job site trafc-ow patterns
and obey the agmen, road signs and signals.

While operating the aerial platform, a good safety

practice is to have qualied personnel in the immediate

work area to:

• Help in case of an emergency

• Operate emergency controls as required

• Watch for loss of control by platform operator

• Warn the operator of any obstructions or hazards
that may not be obvious to them

• Watch for soft terrain, sloping surfaces, drop-offs,
etc. where stability could be jeopardized

• Watch for bystanders and never allow anyone to be
under, or to reach through the booms while operat­ing the aerial platform

Danger

Pinch points may exist between moving compo­nents. Death or serious injury can result from be­coming trapped between components, buildings,
structures or other obstacles. Make sure there is
sufcient clearance around the machine before mov­ing the chassis, booms, or platform. Allow sufcient
room and time to stop movement to avoid contact

with structures or other hazards.

Warning

The potential for an accident increases when operat­ing an aerial platform that is damaged or malfunc­tioning. Death or serious injury can result from such
accidents. Do not operate the aerial platform if it is
damaged or malfunctioning.

Keep both feet positioned rmly on the platform oor.

Operate the controls slowly and deliberately to avoid
jerky and erratic operation. Always stop the controls in
neutral before going in the opposite direction.

Do not dismount while the aerial platform is in motion
or jump off the platform.

Properly stow the aerial platform and secure it against
unauthorized operation at the end of each work day,
before transporting, or if it is left unattended.

Tip-Over and Falling Hazards

Operate the aerial platform only on a rm, at, level

surface capable of withstanding all load forces imposed
by the aerial platform in all operating conditions. Refer to

the General Specications chart for the maximum wheel

load and ground pressure. Raise the booms only when
the aerial platform is on level ground.

14 T125J/TB125J – 0192214

Chapter 3 – Safety

Danger

The aerial platform can tip over if it becomes unsta­ble. Death or serious injury can result from a tip-over
accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard. Do not
raise the boom in winds above 28 mph (45 km/h).

All platform occupants must wear a fall restraint device
connected to a lanyard anchor point.

It is best not to transfer from the platform to another
structure or from the structure to the platform, unless
that is the safest way to do the job. Judge each situation
separately taking the work environment into account. If
it is necessary to transfer from the platform to another
structure the following guidelines apply:

1. Where possible, place the platform over a roof or
walking structure to do the transfer.

2. Transfer your anchorage from one structure to the
other before stepping across.

3. Remember that you might be transferring to a struc­ture where personal fall arrest is required.

If the platform or booms becomes caught on an adja­cent structure or other obstacle and is prevented from
normal motion, reverse the control to free the platform.
If control reversal does not free the platform, evacuate
the platform before attempting to free it.

Electrical System

Charge the batteries in a well-ventilated area free of

ame, sparks, or other hazards that might cause re

or explosion.

Do not operate any of the aerial platform functions while
the battery charger is plugged in.

Warning

Batteries give off hydrogen and oxygen that can
combine explosively. Death or serious injury can

result from a chemical explosion. Do not smoke or

permit open ames or sparks when checking the
batteries.

Battery acid can damage the skin and eyes. Serious

infection or reaction can result if medical treatment

is not given immediately. Wear face and eye protec­tion when working near the batteries.

4. Use the platform entrance, do not climb over or
through the guardrails.

Do not operate the aerial platform in windy or gusty
conditions. Do not add anything to the aerial platform
that will increase the wind loading such as billboards,

banners, ags, etc.

Never operate the aerial platform without all parts of the
guardrail system in place and the gate closed. Make
sure that all protective guards, cowlings and doors are
securely fastened.

Do not exceed the platform capacity as indicated on
the platform rating placard on the platform. Do not carry
loads that extend beyond the platform guardrails without
prior written consent from Snorkel.

Do not operate the aerial platform from trucks, trail-

ers, railway cars, oating vessels, scaffolds, or similar

equipment unless the application is approved in writing
by Snorkel.

Do not use the aerial platform as a crane, hoist, jack or
for any purpose other than to position personnel, tools
and materials.

Do not climb on the guardrails or use ladders, planks,
or other devices to extend or increase the work position
from the platform.

Batteries contain sulfuric acid that can damage your eyes
or skin on contact. Wear a face shield, rubber gloves,
and protective clothing when working around batteries.

If acid contacts your eyes, ush immediately with clear

water and get medical attention. If acid contacts your
skin, wash off immediately with clear water.

Hydraulic System

The hydraulic system contains hoses with hydraulic uid
under pressure.

Danger

Hydraulic uid escaping under pressure can have
enough force to inject uid into the esh. Serious

infection or reaction can result if medical treatment

is not given immediately. In case of injury by escap­ing hydraulic uid, seek medical attention at once.

Do not place your hand or any part of your body in front

of escaping hydraulic uid. Use a piece of cardboard or

wood to search for hydraulic leaks.

Engine and Fuel Handling Precautions

Refer to the engine manufacturer’s Operator’s Manual
for complete information on safe engine operation,

maintenance and specications.

Take care to prevent rope, electrical cords, and hoses,
etc., from becoming caught in or on the aerial platform.

T125J/TB125J – 0192214 15

Chapter 3 – Safety

Danger

Engine exhaust contains carbon monoxide, a poi­sonous gas that is invisible and odorless. Breathing

engine exhaust fumes can cause death or serious
illness. Do not run the engine in an enclosed area

or indoors without adequate ventilation.

Operate dual fuel machines on LPG fuel when indoors
to reduce exhaust fumes and carbon monoxide.

Be careful not to run the diesel fuel tank empty. Bleed
the fuel system if air enters the lines between the tank
and the injection pump.

Allow the engine to return to idle before shutting the
engine off.

Do not smoke or permit open ames while fueling or

near fueling operations.

Never remove the fuel cap or ll the fuel tank while the

engine is running or hot. Never allow fuel to spill on hot
machine components.

Maintain control of the fuel ller nozzle when lling the
tank. Spilled fuel is a potential re hazard.

Clean up spilled fuel immediately.

Tighten the fuel tank cap securely. If the fuel cap is lost,
replace it with an approved cap from Snorkel. Use of a
non-approved cap without proper venting may result in
pressurization of the tank.

Never use fuel for cleaning purposes.
For diesel engines, use the correct fuel grade for the
operating season.

Caution

Engine coolant escaping under pressure can cause

serious burns. Shut the engine off and let it cool
before removing the radiator cap.

Let the engine and radiator cool before adding cool­ant.

Placards and Decals

The aerial platform is equipped with placards and de­cals that provide instruction for operation and accident
prevention. Do not operate the aerial platform if any
placards or decals are missing or not legible.

Do not overll the fuel tank. Allow room for expansion.

16 T125J/TB125J – 0192214

Chapter 4 – Safety Devices

This aerial work platform is manufactured with safety
devices, placards and decals to reduce the likelihood of
an accident. For the safety of all personnel, do not dis­able, modify or ignore any safety device. Safety devices
are included in the daily prestart inspection.

Warning

The potential for an accident increases when safety

devices do not function properly. Death or serious

injury can result from such accidents. Do not alter,

disable, or override any safety device.

If any safety devices are defective, remove the aerial
platform from service until qualied maintenance person­nel can make repairs.

Emergency Stop Controls

There is an emergency stop control at the lower and
upper controls.

At the lower controls, the emergency stop is a two-posi­tion push button (refer to Figure 4.1). Push the emer­gency stop button in to disconnect power to all control
circuits. Pull the button out to restore power.

At the upper controls, the emergency stop is a two-posi­tion push button (refer to Figure 4.2).

Emergency

Stop Button

Engine/Emergency

Power Switch

Figure 4.2 – Upper Controls

Push the emergency stop button in to disconnect power
to the upper control circuits. Pull the button out to restore
power.

Emergency Power System

The emergency power system includes a backup pump,
motor, and battery. Use this system to operate the boom
and turntable functions to lower the platform if the main
power system fails due to engine or pump failure.

Engine/Emergency

Power Switch

Emergency
Stop Button

Ground

Operation Switch

Figure 4.1 – Lower Controls

Note
The lower controls override the upper controls. If the
upper control emergency stop button is engaged, the
lower controls can still be used to operate the aerial
platform.

Hold the emergency power switch (refer to Figures

4.1 and 4.2) down to activate the emergency power
system.

The length of time the pump can be operated depends
on the capacity of the battery.

Emergency Bleed Down System

The emergency bleed down system may be used to
lower the booms if the engine will not start and the
emergency power system will not work. The emergency
bleed down system is composed of two pairs of toggle
switches. (Refer to Figures 4.3 and 4.4) One pair of
switches is located on either side of the wiring box. The
second pair of switches is located on either side of the
upper control box.

Emergency Bleed

Down Switches

Figure 4.3 – Wiring Box

T125J/TB125J – 0192214 17

Chapter 4 – Safety Devices

Emergency Bleed

Down Switch

Ground Operation Switch

The ground operation switch (refer to Figure 4.1) pre­vents boom and platform movement if a control switch
on the lower control panel is accidentally moved.

Hold the switch up to operate the machine from the
lower controls.

Platform Foot Switch

Stepping down on the platform foot switch (refer to
Figure 4.6) activates the upper controls.

Top Rail

Figure 4.4 – Right Side of Upper Controls

Emergency Lowering Knob

The emergency lowering knob may be used to lower
the booms if the engine will not start and the emergency
power system and bleed down system will not work.
The knob is located at the base end of the main boom
lift cylinder, under the center of the turntable (refer to
Figure 4.5). It is accessible from the underside of the
turntable.

Emergency

Lowering Knob

Figure 4.5 – Emergency Lowering Knob

The knob may be turned to open the cylinder bleed down
valve for emergency lowering.

Axle/Boom Interlock

The rear axles on the chassis extend to help stabilize
the machine when the boom is raised or extended.

The axle/boom interlock prevents the boom from extend­ing and from raising above horizontal if the rear axles
are not properly extended and locked in position.

Gravity

Gate

Platform Foot

Switch

Lanyard
Anchors

Mid Rail

Toeboard

Figure 4.6 – Platform

The foot switch must be engaged and a control must be
moved to operate the boom, drive and/or platform from
the upper controls.

Guardrails

The guardrail system includes a top rail, mid rail and
toeboards around the sides of the platform (refer to
Figure 4.6).

A gravity gate (refer to Figure 4.6) or an optional swing­ing gate allows for access to the platform.

The gates close automatically after entering or exiting
the platform. The gate is part of the guardrail system and
must be securely fastened after entering the platform.

Lanyard Anchors

Two lanyard anchors for fall restraint anchorage are
provided below the upper controls at the front of the
platform (refer to Figure 4.6).

Note
The lanyard anchors are not for lifting or tying the ma­chine down.

All personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising the
platform. Do not use the aerial platform for personal fall
arrest anchorage.

18 T125J/TB125J – 0192214

Chapter 4 – Safety Devices

Envelope Management System

The Envelope Management System (EMS) restricts the
movement of the platform to keep it within safe work
parameters. There are EMS indicator lights on the upper
and lower controls (refer to Figure 4.7).

EMS Indicator

Lights

Green

White

Red

Figure 4.7 – EMS Indicator Lights

A ashing green EMS light indicates the machine is in

need of calibration. A Snorkel authorized service pro­vider must be contacted before any further operation. A
solid green light indicates system operation is normal.

Green

White

Red

EMS Indicator

Lights

Height Restriction

The EMS has a height restriction feature which allows
the machine owner to limit the maximum height the plat­form will reach. The maximum height display is located
on the wiring box on the left side of the machine (refer
to Figure 4.9). If the height has been restricted the word
LIMIT will be displayed in the lower right corner.

Limit Indicator

Figure 4.9 – Wiring Box

Ground Fault Circuit Interrupter

The electrical power outlet at the platform contains a
ground fault circuit interrupter (GFCI) to provide protec­tion for personnel.

Electrical

Power Outlet

The white EMS light will begin to ash as the platform

approaches the edge of the working envelope. A solid
white light indicates the edge of the working envelope
has been reached. In the advent of a solid white light,
the EMS will restrict one or more types of movement to
keep the platform within the working envelope.

The red EMS light/button will only be lit in the case of a
malfunction with the EMS system. The red button/light
will ash and beep in quick pulses then pause and re­peat if the primary envelope has been exceeded. When
the red button/light emits a continuous series of beeps

and ashes, the primary and backup envelopes have

been exceeded. The display of a solid red light, with
solid tone, is indicative of system or electrical failures or
further extension beyond the backup envelope. If, after
resetting the EMS system, the solid red light reoccurs, a
Snorkel authorized service provider must be contacted
before any further operation.

When the machine is rst started or after the EMS has

been reset, there will be a 7-10 second delay before the
EMS system will be operational. During this delay period
the green light will not be on and the EMS functions will
not be operational.

Figure 4.10 – Electrical Power Outlet

Tilt Alarm

If the aerial platform chassis is out of level more than
5 degrees when the main boom is raised or extended,
an alarm will sound. The tilt alarm is located under the
upper control panel.

Danger

The aerial platform can tip over if it becomes unsta­ble. Death or serious injury can result from a tip-over
accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard.

T125J/TB125J – 0192214 19

Chapter 4 – Safety Devices

When the tilt alarm sounds, completely retract and lower
the main boom and then drive to a level surface.

The tilt alarm is for added protection and does not

justify operating on anything other than rm, at, level

surfaces.

Engine Protection Systems

A light in the emergency stop button will illuminate to
warn against high engine temperature.

The engine will shutdown if the operating temperature
exceeds a preset level or if the oil pressure is too low for
safe operation. An engine temperature gauge is on the
top of the lower control panel (refer to Figure 4.11).

Engine

Temperature

Gauge

Figure 4.11 – Lower Control Panel

High Engine Temperature Alarm

If the coolant exceeds the engine operating temperature,
a light in the emergency stop button will illuminate and
the engine will shut off.

Do not restart the engine until the condition that caused
the overheating has been corrected.

Horn Button

Figure 4.12 – Upper Control Panel Front

Drive Motion Alarm

An optional drive motion alarm may be provided on the
machine. When the drive/steer control is moved out of
neutral the alarm sounds, in short beeps, to warn per­sonnel in the work area to stand clear.

Flashing Light

An optional red or amber ashing light may be located
on the top of the boom near the base end. The ashing

light warns personnel that the aerial platform is in the
area.

The light ashes at about one ash per second when

the engine is running.

Driving Lights

Optional headlights and blinking tail lights may be in­stalled on the machine. The headlights are located on
the top of the front cowling. The tail lights are mounted
on the sides of the rear cowling.

Driving lights help improve visibility while driving the
aerial platform and help others see it too. Driving lights
are not for driving on public roadways.

Platform Work Lights

Optional platform work lights may be located on the top
rail of the platform (refer to Figure 4.13), one on each
side of the upper control panel.

Low Oil Pressure Alarm

If the engine oil pressure falls below a safe operating
value the engine will shut off after 30 seconds. The
engine can be restarted with low oil pressure, but it will
only run a few seconds before it shuts off again.

Do not restart the engine until the condition that caused
the low oil pressure has been corrected.

Platform Work

Horn

The optional horn may be used to warn personnel on
the ground. The horn button is on the right side of the
upper control panel (refer to Figure 4.12). The horn is
operational when the emergency stop button and the
start switched are both on at the lower and the upper
controls.

Use the platform lights to improve visibility while work­ing aloft in dimly lit areas. Do not use the platform work
lights to drive on public roadways.

20 T125J/TB125J – 0192214

Figure 4.13 – Platform Work Light

Lights

Chapter 5 – Gauges and Displays

The aerial platform is equipped with several gauges to
monitor the condition of the machine before and during
operation.

Hour Meter

The hour meter is located on the right side of the lower
controls (refer to Figure 5.1). It measures the accumu­lated engine operating time.

Engine

Temperature

Ammeter

Hour Meter

Gauge

Air Filter Gauge

Figure 5.2 – Air Filter Gauge

The yellow indicator disk inside the sight glass stays at
its highest level when the engine is turned off.

When the yellow indicator disk reaches the red area,

it’s time to change the lter element. After changing the
lter, press the reset button to reset the indicator disk

to the bottom of the sight glass.

Fuel

The fuel tank is translucent. The amount of fuel in the
tank can be gauged by raising the door on the right
rear of the machine (refer to Figure 5.3) and looking at
the tank. On older machines the fuel tank is behind the
cowling door on the right side of the machine. These
tanks have a gauge on top of them that measures the
amount of fuel in the tank.

Figure 5.1 – Lower Controls

Fuel Tank

Engine Temperature Gauge

The temperature gauge is located on the lower control
panel (refer to Figure 5.1). The gauge displays the
temperature of the water and antifreeze mixture in the
engine block.

Ammeter

The ammeter is located on the lower control panel (refer
to Figure 5.1). The ammeter displays the level of current

ow from the alternator to the batteries.

After the engine has been running for a few minutes
under normal operating conditions, the ammeter gauge
indicator should read approximately “0.”

Engine Air Filter Gauge

The air lter gauge (refer to Figure 5.2) is located above

the lower control panel. The gauge measures the air

pressure between the intake manifold and the air lter.

T125J/TB125J – 0192214 21

Note
Do not run a diesel fuel tank empty. Air in the fuel line
makes the engine hard to start.

LPG tanks have a fuel gauge that has two scales. One
scale measures the fuel level when the tank is mounted
vertical and the other is used when the tank is mounted
horizontal (refer to Figure 5.4).

Figure 5.3 – Fuel Tank

Chapter 5 – Gauges and Displays

Horizontal Scale

Figure 5.4 – LPG Fuel Tank

The LPG tank is mounted horizontally behind the rear
cowling door on the right side of the machine. Read the
horizontal scale to determine the fuel level.

Engine Oil

The engine oil level is measured with a dipstick. The
dipstick is the only way to accurately determine the
engine oil level. The engine oil level should always be
between the add and full marks on the dipstick.

Fluid Level and Temperature Gauge

A gauge on the left end of the reservoir displays the

level and temperature of the hydraulic uid (refer to

Figure 5.5).

Fluid Level and

Temperature Gauge

Figure 5.5 – Hydraulic Fluid Gauge

If the temperature rises above 200°F (93°C) stop ma-

chine operation and let the uid cool before resuming

operation.

Hydraulic Fluid Filter Gauge

The uid lter gauge (refer to Figure 5.4) is located on
the return line lter on top the reservoir. The reservoir is

behind the door on the right side of the turntable. Dur-

ing high pump ow situations, the gauge indicates the
condition of the lter. When the needle on the gauge is
in the red zone, its time to change the lter.

Filter Gauge

Figure 5.4 – Hydraulic Fluid Filter Gauge

22 T125J/TB125J – 0192214

Chapter 6 – Controls

Controls to position the platform are located on the lower
control panel on the turntable and on the upper control
panel in the platform. Drive controls are located on the
upper control panel only.

Danger

Pinch points may exist between moving compo­nents. Death or serious injury can result from be­coming trapped between components, buildings,
structures, or other obstacles. Make sure all person-

nel stand clear while operating the aerial platform.

Battery Disconnect Switch

The battery disconnect is located behind the door on
the left side of the turntable above the batteries (refer
to Figure 6.1).

Jack Lever

Axle Lever

Figure 6.2 – Axle Controls

High Range Speed Selector – 4x4

The high range speed selector (refer to Figure 6.3) is
located on the top of the chassis near the front of the
machine.

Battery Disconnect Switch

Figure 6.1 – Battery Disconnect Switch

The battery disconnect removes electrical power from all
electrically controlled functions when in the off position.
Place the switch in the on position to electrically connect
the battery to the electrical system.

Caution

Only authorized personnel should operate the aerial

platform. Unqualied personnel may cause injury
to coworkers or property damage. Lock the battery
disconnect switch in the off position before leaving

the aerial platform unattended.

Turn the battery disconnect switch off to prevent unau­thorized use of the aerial platform.

Axle Controls

The axle controls (refer to Figure 6.2) are located on the
top of the chassis at the rear of the machine.

One of the controls operates the jack to raise and lower
the chassis and the other operates the axle extend and
retract functions.

High Range Speed

Selector Valve

Figure 6.3 – Top of Chassis

This valve works in conjunction with the drive range
switch on the upper controls to determine the maximum
drive speed on four-wheel drive machines. Lock the knob
in the upward position for maximum drive speed.

Lower Controls

The lower controls (refer to Figure 6.4) are located on the
right side of the turntable. Boom and platform functions
can be operated from the lower controls. The following
are located on the lower control panel.

Start switch



Emergency stop button



Controls selector switch



Ground operation switch



Turntable swing switch



Main boom elevation switch



Boom extension switch



Boom speed knob



Jib articulation switch



Platform level switch



Platform rotate switch



Engine/Emergency power switch



Engine speed switch



Fuel switch (dual fuel machines)



Hydraulic warm-up switch (option)



T125J/TB125J – 0192214 23