Snorkel TB60 User manual

June 2014
Part Number 0083739
MANUAL
OPERATOR’S
Models TB60/TB60RT
Replaces 0083739 March 2014

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, recogniz-
ing 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 Cali-
fornia 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 constitu-
ents are known by the State of California to cause cancer, birth
defects and other reproductive harm.

TB60 – 0083739
Electrical Danger ............................ Inside Front Cover
California Proposition 65 ................ Inside Front Cover
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
Engine Specications ...............................................6
Engine Oil Viscosity..................................................8
Chapter 3 – Safety
Electrocution Hazards ............................................ 11
Minimum Safe Approach Distance ......................... 11
Prestart Inspection..................................................12
Work Place Inspection and Practices.....................12
Operation................................................................12
Tip-Over and Falling Hazards.................................13
Electrical System....................................................13
Hydraulic System....................................................13
Engine and Fuel Handling Precautions ..................14
Placards and Decals...............................................14
Chapter 4 – Safety Devices
Emergency Stop Controls.......................................15
Emergency Power System .....................................15
Emergency Lowering Knob ....................................16
Ground Operation Switch .......................................16
Platform Foot Switch ..............................................16
Guardrails...............................................................16
Lanyard Anchors.....................................................16
Ground Fault Circuit Interrupter..............................17
Tilt Alarm.................................................................17
Engine Protection Systems ....................................17
High Engine Temperature Alarm .........................17
Low Oil Pressure Alarm.......................................17
Horn........................................................................18
All Motion Alarm......................................................18
Flashing Light .........................................................18
Driving Lights..........................................................18
Platform Work Lights ..............................................18
Bump Guard System ..............................................18
Chapter 5 – Gauges and Displays
Hour Meter..............................................................19
Engine Temperature Gauge ...................................19
Ammeter – Cummins, Deutz and Ford Engines.....19
Voltmeter – General Motors Engines......................19
Engine Air Filter Gauge ..........................................19
Fuel Gauge.............................................................19
Engine Oil...............................................................20
Hydraulic Fluid Filter Gauge...................................20
Fluid Level and Temperature Gauge ......................20
Chapter 6 – Controls
Battery Disconnect Switch......................................21
Lower Controls .......................................................21
Emergency Stop Button ......................................21
Control Selector Switch.......................................21
Start Switch .........................................................21
Ground Operation Switch....................................22
Rotation Switch ...................................................22
Boom Elevation Switch .......................................22
Boom Extend/Retract Switch ..............................22
Boom Speed Knob .............................................22
Platform Level Switch..........................................23
Platform Rotation Switch.....................................23
Engine/Emergency Power Switch .......................23
Throttle Switch ....................................................23
Fuel Switch..........................................................23
Hydraulic System Warm-up Switch .....................23
Circuit Breaker Reset Buttons ................................24
Upper Controls .......................................................24
Start Switch .........................................................24
Emergency Stop Button ......................................25
Drive Joystick ......................................................25
Drive Range Switch.............................................25
Boom Joystick .....................................................26
Boom Extension Switch ......................................26
Platform Level Switch..........................................26
Platform Rotation Switch.....................................26
Boom Speed Knob ..............................................26
Throttle Switch ....................................................26
Engine/Emergency Power Switch .......................26
Platform Foot Switch ..............................................27
Machine/Generator Switch .....................................27
Hydraulic System Warm-up Switch ........................27
Driving and Platform Work Lights...........................27
Horn Button ............................................................28
Table of Contents

Table of Contents
TB60 – 0083739
Chapter 7 – Prestart Inspection
Operator’s Manual..................................................29
Engine ....................................................................29
Oil Level ..............................................................29
Coolant................................................................29
Radiator...............................................................30
Fuel Tank.............................................................30
Fuel Line .............................................................31
Air Filter...............................................................31
Charging System ................................................31
Cold Weather Start Kit ........................................31
Electrical System....................................................32
Battery Fluid Level ..............................................32
Battery Terminals.................................................32
Cables and Wiring Harness....................................32
Hydraulic System....................................................32
Fluid Level...........................................................32
Fluid Filter ...........................................................33
Hoses, Tubes, and Fittings..................................33
Tires and Wheels....................................................33
Lower Control Station.............................................34
Operating Controls ..............................................34
Emergency Stop..................................................34
Emergency Power...............................................34
Emergency Lowering..............................................34
Level Sensor...........................................................35
Flashing Light .........................................................35
Sandblast Protection Kit .........................................36
Structures ...............................................................36
Weldments ..........................................................36
Slide Pads ...........................................................36
Wire Ropes .........................................................36
Fasteners ............................................................37
Upper Control Station.............................................37
Guardrail System ................................................37
Lanyard Anchors .................................................38
Operating Controls ..............................................38
Emergency Stop..................................................38
Emergency Power...............................................38
Horn ....................................................................39
Electrical Power Outlet........................................39
All Motion Alarm......................................................39
Air Line to Platform.................................................39
Driving and Platform Work Lights...........................39
Tow Kit ....................................................................40
Platform Glazier Package.......................................40
Platform Control Cover...........................................40
Placards and Decals...............................................40
Prestart Inspection Checklist..................................47
Chapter 8 – Operation
Cold Weather Start Up ...........................................49
Engine Cold Weather Start Kit................................49
Cummins, Kubota and Ford – Block Heater........49
Cummins – Ether Injection ..................................49
Deutz – Manifold Preheater ................................50
GM – Radiator Hose In-Line ...............................50
Hydraulic System Cold Weather Warm-Up ............50
Hydraulic System Warm-up Switch .....................50
Manually Warming The Hydraulic System ..........50
Preparing for Operation..........................................50
Lower Controls .......................................................50
Upper Controls .......................................................51
Boom Operation ..................................................52
Driving and Steering............................................52
Drive Speeds.......................................................53
Motion Warning Alarm .........................................53
Four Wheel Drive....................................................53
Gradeability ............................................................53
Percent vs. Degree of Slope ...............................54
Driving on a Slope...............................................54
Calculating Percent Grade ..................................54
Machine Gradeability ..........................................55
All Motion Alarm......................................................55
Four Wheel Drive....................................................55
Electrical Power Outlet ...........................................55
AC Generator .........................................................55
Dual Fuel ................................................................56
Air Line ...................................................................56
Driving Lights..........................................................56
Platform Work Lights ..............................................56
Platform Glazier Package.......................................57
Platform Capacity................................................57
Bump Guard System ..............................................57
Chapter 9 – Stowing and Transporting
Stowing...................................................................59
Transporting ...........................................................59
Driving .................................................................59
Winching .............................................................60
Hoisting ...............................................................60
Securing for Transport.........................................61
Chapter 10 – Emergency Operation
Emergency Power System .....................................63
Lower Controls ....................................................63
Upper Controls ....................................................63
Emergency Lowering..............................................64
Towing ....................................................................65
Chapter 11 – Troubleshooting
Troubleshooting Chart ............................................67
Appendix A – Glossary
Limited Warranty

TB60 – 0083739 1
Chapter 1 – Introduction
Aerial Platform Features
The aerial platform is a boom-supported elevating work
platform used to raise personnel, tools and materials 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.
yProportional boom lift, swing and drive control
y180 degree hydraulic platform rotation
y360 degree continuous turntable rotation
y39″ x 96″ (99 cm x 243 cm) steel
500 lb (227 kg) capacity platform
yPlatform gravity gate
yDrivable at full height
yTwo safety lanyard attachments
yManual lowering valve at chassis
yHydraulic oil level and temperature gauges
yTie-down/lifting lugs
yBattery operated emergency power system
yEngine anti-restart
yHigh engine temperature shut down
yLow oil pressure shut down
yTilt alarm
yHour meter
yAmmeter – Cummins, Deutz, Ford engines
yVoltmeter – GM engine
yCoolant temperature gauge
ySpark arrestor mufer – GM engines
yFoam lled tires
yFour wheel drive
yFive year limited warranty
The machine may be powered with one of the following
engines.
yCummins B3.3 – Diesel
yDeutz F4L-1011F – Diesel
yDeutz F4L-2011F – Diesel
yKubota V2403-M-T – Diesel
yFord LRG 425 – Gasoline, LPG or dual fuel
yFord LRG 423 – Gasoline, LPG or dual fuel
yGeneral Motors 2.4L – Gasoline, LPG or dual fuel
The aerial platform has been manufactured to conform
to all applicable requirement of the following organiza-
tions.
yOccupational Safety and Health Administration
(OSHA)
yAmerican National Standards Institute (ANSI)
Options
The following options may be provided on the ma-
chine.
yProportional boom extend and retract
yLower control cover
yPlatform work lights – ood lights
yFlashing light
yDriving lights – two headlights and two rear lights
yPlatform swinging gate
ySide entry gravity gate
ySandblast protection kit
yCold weather start kit
yHydraulic system cold weather warm-up kit
yAC generator – hydraulic powered, 110 V, 2000 W
yAC generator – hydraulic powered, 220 V, 50Hz
yAll motion alarm
yAirline to platform
yTow kit
y30″ x 96 (76 cm x 244 cm) aluminum 500 lb
(272 kg) capacity platform
y30″x 96″ (76 cm x 244 cm) steel 500 lb
(227 kg) capacity platform
y30″x 60″ (76 cm x 152 cm) aluminum 600 lb
(272 kg) capacity platform
yHorn
yTwo wheel drive
yPlatform glazier package
yPlatform welder package
ySpark arrestor mufer – Deutz engines
yDual fuel with 20 gallon gasoline tank
yTilt warning light
yFlotation tires
yHighway tread tires
yNon-marking tires
yCanadian 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

Chapter 1 – Introduction
2 TB60 – 0083739
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.
Caution
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.
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 personnel
lifting 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.
yBecome procient in knowledge and actual operation
before using the aerial platform on the job.
yThe operator must be trained and authorized to
perform any functions of the aerial platform.
yOperation 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.
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 condi-
tion. Other maintenance functions must be performed
by maintenance personnel who are qualied to work on
the aerial platform.
Caution
Welding current can be very intense. Damage to elec-
tronic components may result. Connect the ground
clamp as close as possible to the area being welded.
Disconnect battery cables and any microprocessors
and engine control modules before welding on the
machine.
If it becomes necessary to weld aerial platform com-
ponents as a method of repair, take all precautions to
prevent damage to electronic circuitry and devices on
the machine. This includes, but may not be limited to,
disconnecting battery cables and electronic devices.
Do not modify this aerial platform without prior written con-
sent 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 OSHA regulations is the respon-
sibility 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 the “Manual of Responsibilities for
Dealers, Owners, Users, Operators, Lessors and Les-
sees of ANSI/SIA A92.5-2006 Boom-Supported Elevat-
ing Work Platforms” is available from Snorkel dealers or
from the factory upon request.
Copies are also available from:
Scaffold Industry Association, Inc.
P.O. Box 20574
Phoenix, AZ 85036-0574 USA
Additional Information
For additional information contact your local dealer or
Snorkel at:
Snorkel International
P.O. Box 1160
St. Joseph, MO 64502-1160 USA
1-800-255-0317
http://www.snorkelusa.com

TB60 – 0083739 3
Component Identication
Right Side
Chassis
Lower Controls
Upper Controls
Wiring Box
Operator’s
Manual
Steer Wheels
Left Side
Platform
Main Boom Tip Boom
Hydraulic Fluid Tank
And Filter Battery Disconnect Switch
Batteries
Engine
Steer Wheels
Platform
Foot Switch
Emergency
Lowering
Valve
Intermediate
Boom
Fuel Tank
LP Fuel Tank
Chapter 2 – Specications

Chapter 2 – Specications
4 TB60 – 0083739
Working Envelope
72°
16°
0
10
(3)
20
(6.1)
30
(9.1)
40
(12.2)
50
(15.2)
60
(18.3)
70
(21.3)
10
(3) 60
(18.3)
010
(3)
20
(6.1)
30
(9.1)
40
(12.2)
50
(15.2)
10
(3)
Feet
(Meters)

Chapter 2 – Specications
TB60 – 0083739 5
General Specications
Aerial Platform
Working height 66′ (20.1 m)
Maximum platform height 60′ (18.3 m)
Horizontal reach 50′ (15.2 m)
Main boom
Articulation -16° to +72°
Extension 0 to 27′4″ (0 to 8.33 m)
Turntable rotation 360° continuous
Turning radius, inside 15′5″ (4.7m)
Wheelbase 10′ (3 m)
Ground clearance 13″ (33 cm)
Maximum wheel load 10,600 lbs (4808 kg)
Maximum ground pressure 64 psi (442 kPa)
Weight, GVW
Approximate 20,700 lbs (9,389 kg)
Stowed width 8′5″ (2.5 m)
Stowed length 30′10″ (9.4 m)
Stowed height 8′9″ (2.7 m)
Platform
Dimensions
Standard steel 39″x 96″ (99 cm x 243 cm)
Rated work load 500 lb (227 kg)
Optional aluminum 30″x 60″ (76 cm x 152 cm)
Rated work load 600 lb (272 kg)
Optional aluminum 30″x 96″ (76 cm x 244 cm)
Rated work load 500 lb (227 kg)
Optional steel 30″x 96″ (76 cm x 244 cm)
Rated work load 500 lb (227 kg)
Rotation 90° CW to 80° CCW
Maximum number of occupants 2 people
Optional AC generator 125 VAC
Optional AC generator 220 VAC, 50 Hz
Function Speed
Turntable rotation, 360 degrees 85 to 95 seconds
Main boom
Up 40 to 50 seconds
Down 40 to 50 seconds
Extend 60 to 70 seconds
Retract 50 to 60 seconds
Platform rotation, 170 degrees 16 to 20 seconds
Drive
High, booms stowed 3.0 mph (4.8 km/h)
Low, booms elevated 1.0 mph (1.6 km/h)
Drive System
Standard Four-wheel drive
Gradeability 30%
Optional Two-wheel drive
Gradeability 25%
Tires
Foam Fillled
Highway tread,14 ply 15″x 19.5″ (38 cm x 50 cm)
Bar lug, 4x4 12 ply 15″x 19.5″ (38 cm x 50 cm)
Flotation, 4x4 40″x 19-19.5″ (101.6 cm x 50 cm)
Air Fillled
Flotation 40″x 19-19.5″ (101.6 cm x 50 cm)
Electrical System
Voltage 12 V DC negative chassis ground
Source 12 V 550 CCA battery
Fluid recommended distilled water
Hydraulic System
Maximum pressure 2,500 psi (17,250 kPa)
Reservoir capacity 26.1 US gal (99 l)
System capacity 35 US gal (132 l)
Maximum operating temperature 200°F (93°C)
Hydraulic uid recommended
Above 10°F (-12°C) Mobil DTE-13M (ISO VG32)
Below 10°F (-12°C) Mobil DTE-11M (ISO VG15)
Engine
Diesel Cummins B3.3
Deutz F4L-1011F
Deutz F4L-2011F
Kubota V2403-M-T
Gasoline and/or LPG Ford LRG 423
Ford LRG 425
General Motors 2.4L
Fuel Tank Capacity
Diesel or gasoline 40 US gal (151 l)
LPG 43.5 lbs (19.7 kg)
Dual fuel gasoline 20 US gal (76 l)
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 (12.8 m/s)

Chapter 2 – Specications
6 TB60 – 0083739
Engine Specications
Engine Displacement Fuel Grade Coolant Operating
Temperature
Oil
Capacity
Oil
Grade
Cummins
B3.3
199 cu. in.
(3.26 liter)
Diesel
ASTM No. 2D fuel with a mini-
mum Cetane no. of 40.1For op-
erating temperature below 0°C
(32°F) use winterized No. 2D.
50% Water
50% Antifreeze2
140°F to 212°F
60°C to 100°C
2 US gal
(7.5 liter)3
SAE
15W-403
API
CH4/SG
Deutz
F4L-1011F
190 cu. in.
(3.11 liter)3
Diesel
yDIN 51 601 (February 1986).1
yBS 2869: A1 and A2 (with A2
refer to Deutz manual about
sulfur content)1
yASTM D 975-88: 1-D and 2-D
yCEN EN 590 or DIN EN 590
yNATO Code F-54 and F-75
yFor operating temperatures
below 0°C (32°F) use winter
grade diesel.
Air 172°F to 203°F
78°C to 95°C
2.75 US
gal (10.4
liter)
API: CD
or
higher3
Deutz
F4L-2011F
190 cu. in.
(3.11 liter)
Diesel
yDIN 51 601 (February 1986).1
yBS 2869: A1 and A2 (with A2
refer to Deutz manual about
sulfur content)1
yASTM D 975-88: 1-D and 2-D
yCEN EN 590 or DIN EN 590
yNATO Code F-54 and F-75
yFor operating temperatures
below 0°C (32°F) use winter
grade diesel.
Air 172°F to 203°F
78°C to 95°C
2.75 US
gal (10.4
liter)
API: CD
or
higher3
Note 1: Refer to the engine manufacturers manual for specic fuel recommendations and specications.
Note 2: Refer to the engine manufacturers manual for specic coolant recommendations and specications.
Note 3: Refer to the engine manufacturers manual for specic lubricating oil recommendations and specications.
148.5 cu. in.
(2.43 liter)
Diesel
Diesel Fuel No. 2-D
ASTM D9751
50% water
50% Antifreeze2
2.51 gal
(9.5 liter)
API:
CF grade
or higher3
Kubota
V2403-M-T
NA

Chapter 2 – Specications
TB60 – 0083739 7
Engine Displacement Fuel Grade Coolant Operating
Temperature
Oil
Capacity
Oil
Grade
Ford
LRG 425
153 cu. in.
(2.5 liter)3
Gasoline
Unleaded 87 or 89 octane.1
Do not use gasoline blends with
more than 10% ethanol by
volume octane index of 87 or 89.
LPG
HD-5 USA 1
EN589 European
50% Water
50% Antifreeze3
195°F to 220°F
91°C to 104°C
4.5 US qt
(4.26 liter)3
API: SH
or SJ2
Ford
LRG 423
140 cu. in.
(2.3 liter)
Gasoline
Unleaded gasoline 85 octane
(motor method).1
LPG
Gas Processors Association
Standard 2140
Category: special duty propane
50% Water
50% Antifreeze3
160°F to 190°F
71°C to 88°C
4 US qt
(3.8 liter)
Gasoline
API: SH
SG only if
SH is not
available2
LPG
SG or SH
GM
2.4L
150 cu. in.
(2.4 liter)
Gasoline
Unleaded 87 octane1
LPG
HD-51
50% Water
50% Antifreeze5
176°F to 183°F
80°C to 84°C
With lter:
1.12 US gal
(4.5 liter)
W/o lter:
1.18 US gal
(4.25 liter)
ILSAC
GF-44
Note 1: Refer to the engine manufacturers manual for specic fuel recommendations and specications.
Note 2: Refer to the engine manufacturers manual for specic lubricating oil recommendations and specications.
Note 3: Refer to the Ford LRG 425 Operator Handbook for specic coolant recommendations and specications.
Note 4: API Starburst symbol on GF-4 oils reads “API Service SM.”
Note 5: Refer to the engine manufacturers manual for specic coolant recommendations and specications.

Chapter 2 – Specications
8 TB60 – 0083739
Engine Oil Viscosity
Cummins B3.3
Deutz F4L-1011F
Deutz F4L-2011F
Kubota V2403-M-T
SAE 15W/40

Chapter 2 – Specications
TB60 – 0083739 9
Ford LRG 423
General Motors 2.4L
Note
No straight weight oils and no specialized diesel oils are
to be used in GM engines.
Ford LRG 425
°F °F
-40 -31 -22 -13 -4 514 23 32 41 50 59 68 77 86 104 122
°C °C
-40 -35 -30 -25 -20 -15 -10 -5 010 15 20 25 30 40 50
5
SAE 5W/30
SAE 0W/30

Chapter 2 – Specications
10 TB60 – 0083739

TB60 – 0083739 11
Chapter 3 – Safety
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.
yNever disable, modify, or ignore any safety device.
ySafety 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 sus-
pected, 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 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 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.
Table 1 – Minimum Safe Approach Distance
Figure 3 – Minimum Safe Approach Distance
Voltage Range
(Phase to Phase)
Minimum Safe Approach Distance
Feet Meters
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
Denotes
prohibited
zone

Chapter 3 – Safety
12 TB60 – 0083739
Prestart Inspection
Perform a prestart inspection before each shift as de-
scribed 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.
yThe welding ground clamp must be attached to the
same structure that is being welded.
yElectrical 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
Before using the aerial platform in any hazardous
(classied) location, make certain it is approved and
of the type required by ANSI/NFPA 505 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 operat-
ing the aerial platform
Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure there is sufcient clear-
ance 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.
Always look in the direction of movement.
yDrive with care and at speeds compatible with the
work place conditions.
yUse caution when driving over rough ground, on
slopes and when turning.
yDo 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 acciden-
tally 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 an-
other platform.
Warning
The potential for an accident increases when oper-
ating an aerial platform that is damaged or malfunc-
tioning. Death or serious injury could result from
such accidents. Do not operate the aerial platform
if it is damaged or malfunctioning.
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 plat-
form 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 ob-
struct your view below. Make sure the area below the
platform is free of personnel before lowering.
Keep both feet positioned rmly on the platform oor.
yOperate the controls slowly and deliberately to avoid
jerky and erratic operation.
yAlways 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.

Chapter 3 – Safety
TB60 – 0083739 13
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.
Danger
The aerial platform can tip over if it becomes unsta-
ble. Death or serious injury will 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.
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 struc-
ture where personal fall arrest is required.
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.
Take care to prevent rope, electrical cords, and hoses,
etc., from becoming caught in or on the aerial platform.
yIf the platform or booms becomes caught on an ad-
jacent structure or other obstacle and is prevented
from normal motion, reverse the control to free the
platform.
yIf control reversal does not free the platform, evacu-
ate 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 could
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 protec-
tion when working near the batteries.
yBatteries contain sulfuric acid that can damage your
eyes or skin on contact.
yWear a face shield, rubber gloves, and protective
clothing when working around batteries.
yIf acid contacts your eyes, ush immediately with
clear water and get medical attention.
yIf 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 will result if medical treatment
is not given immediately. In case of injury by escap-
ing hydraulic uid, seek medical attention at once.

Chapter 3 – Safety
14 TB60 – 0083739
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.
Danger
Engine exhaust contains carbon monoxide, a poi-
sonous gas that is invisible and odorless. Breathing
engine exhaust fumes will 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.
Do not overll the fuel tank. Allow room for expansion.
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 may 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 de-
cals that provide instruction for operation and accident
prevention. Do not operate the aerial platform if any
placards or decals are missing or not legible.

TB60 – 0083739 15
This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
yFor the safety of all personnel, do not disable, modify,
or ignore any safety device.
ySafety 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 could 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 person-
nel 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 button is a
two-position push button (refer to Figure 4.1).
Figure 4.1 – Lower Controls
yPush the emergency stop button inward to discon-
nect power to all control circuits.
yPull the button outward to restore power.
yOn older machines the emergency stop is a two-
position toggle switch with a red safety guard.
yPush the guard down over the toggle switch to dis-
connect power to all control circuits. Lift the guard
and push the switch up to restore power.
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged, the lower
controls can still be used to operate the aerial platform.
At the upper controls, the emergency stop is a two-posi-
tion push button (refer to Figure 4.2).
Figure 4.2 – Upper Controls
yPush the emergency stop button inward to discon-
nect power to the upper control circuits.
yPull the button outward to restore power.
Emergency Power System
The emergency power system includes a back-up 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.
Caution
The emergency power system is for emergency
lowering and stowing only. The length of time the
pump can be operated depends on the capacity
of the battery. Do not use this system for normal
operation.
yHold the engine/emergency power switch (refer to
Figure 4.1 and 4.2) downward to activate the emer-
gency power system.
yRelease the switch to disengage the emergency
power system.
yThe length of time the pump can be operated de-
pends on the capacity of the battery.
Chapter 4 – Safety Devices
Emergency
Stop Button
Engine/Emergency
Power Switch
Ground Operation
Switch
Emergency
Stop Button
Engine/Emergency
Power Switch

Chapter 4 – Safety Devices
16 TB60 – 0083739
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 will not work.
The knob is on the base end of the main boom lift
cylinder (refer to Figure 4.3) under the left side of the
turntable.
Figure 4.3 – Emergency Lowering Knob
Ground Operation Switch
The ground operation switch (refer to Figure 4.1) pre-
vents 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
Step down on the platform foot switch (refer to Figure
4.4) to activate the upper controls.
Figure 4.4 – 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 guardrails (refer to Figure 4.5) help protect person-
nel from falling off the platform.
The guardrail system includes:
yA top rail
yA mid rail
yA gravity gate or optional swinging gate
yOptional side entry gravity gate
yToeboards around the sides of the platform.
The gravity gate(s) allow for access to the platform and
close automatically after entering or exiting the platform.
After entering the platform check to make sure the gates
are fully lowered and even with the mid rail.
The optional swinging gate (refer to Figure 4.5) allows
for access to the platform. The gate must be securely
latched except when personnel are entering or leaving
the platform.
Figure 4.5 – Platform Swing Gate
Lanyard Anchors
Two lanyard anchors for fall restraint anchorage are
provided below the upper controls at the front of the
platform (refer to Figure 4.4).
Note
The lanyard anchors are not designed for lifting or tying
the machine down.
yAll personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising
the platform.
yAttach only one fall restraint device to each lanyard
anchor.
yDo not use the aerial platform for personal fall arrest
anchorage.
Emergency
Lowering Knob
Toeboard
Platform Foot
Switch
Lanyard
Anchors
Gravity
Gate
Top Rail
Mid Rail