Snorkel TL37 User manual

December 2017
Part Number 511116-000-EN-A
MANUAL
OPERATOR’S
Serial number 007625 and after

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, boom structure, 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, boom structure, 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, chemicals known to the
State of California to cause cancer and birth defects or
other reproductive harm. Wash hands after handling.

TL37J – 511116-000-EN-A
Table of Contents
Electrical Danger .............................. Inside front cover
Proposition 65 Warning .................... 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
General Specications ...............................................4
Operating dimensions .............................................4
Travel dimensions ...................................................4
Weight .....................................................................4
Operating parameters .............................................4
Tires ........................................................................4
Brakes .....................................................................4
Hydraulic System ....................................................4
Electrical System.....................................................4
Maximum Wind Speed ............................................4
Operating Envelope.................................................4
Chapter 3 – Safety
Electrocution Hazards ................................................5
Minimum Safe Approach Distance .............................5
Prestart Inspection......................................................5
Work Place Inspection and Practices.........................5
Operation....................................................................6
Tip-Over and Falling Hazards.....................................6
Electrical System........................................................7
Hydraulic System........................................................7
Placards and Decals...................................................7
Chapter 4 – Safety Devices
Emergency Stop Buttons............................................9
Control Select/Ground Operation Switch....................9
Outrigger Indicators....................................................9
Emergency Slew.......................................................10
Emergency Lowering Valve......................................10
Emergency Lowering Hand Pump............................ 11
Guardrails................................................................. 11
Chapter 5 – Gauges and Displays
Battery Charge Indicator ..........................................13
Diagnostic Center Display ........................................13
Chapter 6 – Batteries
General Maintenance ...............................................15
Charging...................................................................15
Chapter 7 – Controls
Lower Controls .........................................................17
Emergency Stop Button ........................................17
Control Selector/Ground Operation Switch ...........17
Platform Raise/Lower Button ................................17
Outrigger Raise/Lower Button...............................17
Upper Controls .........................................................17
Emergency Stop Button ........................................18
Platform Raise/Lower Button ................................18
Chapter 8 – Prestart Inspection
Operator’s Manual....................................................19
Electrical System......................................................19
Battery terminals....................................................19
Battery Fluid Level ................................................19
Safety Switches......................................................20
Battery Charger ...................................................20
Damaged/Loose Fittings...........................................20
Wheels.......................................................................20
Cables and Wiring Harness......................................20
Hydraulic System......................................................20
Fluid Level.............................................................20
Hoses, Tubes, and Fittings....................................21
Lower Control Station...............................................21
Operating Controls ................................................21
Emergency Stop....................................................21
Emergency Lower/Slew ........................................21
Structures .................................................................22
Weldments ............................................................22
Fasteners ..............................................................22
Upper Control Station...............................................22
Guardrail System ..................................................22
Emergency Hand Pump ........................................22
Emergency Stops..................................................22
Placards and Decals.................................................23
Prestart Inspection Checklist....................................27
Chapter 9 – Operation
Preparing for Operation............................................29
Lower Controls .........................................................29
Upper Controls .........................................................29
Platform ....................................................................30
Swing-Out Tray Covers ............................................30
Electrical Power Outlet .............................................31
Chapter 10 – Stowing and Transporting
Stowing.....................................................................33
Transporting .............................................................33
Securing for Transport...........................................33
Towing ...................................................................34
Friction Drive Assist Package................................34
Chapter 11 – Emergency Operation
Emergency Slew.......................................................36
Emergency Lowering valves.....................................36
Emergency Lowering Hand Pump............................37

Table of Contents
TL37J – 511116-000-EN-A
Chapter 12 – Troubleshooting
Troubleshooting Chart ..............................................38
Appendix A – Glossary
Limitited Warranty

TL37J – 511116-000-EN-A 1
Chapter 1 – Introduction
Aerial Platform Features
The aerial platform is a class leader, offering several
features as standard.
Features of the aerial platform include a powered plat-
form rotation and fully proportional hydraulic controls at
both platform and ground level.
The aerial platform also has an independent hydraulically
operated ick-out boom and rotating platform for extra
maneuverability. It guarantees access to the most hard
to reach places, while the 90 degrees platform rotation
provides the precision positioning that is vital for work-
ing in tight spaces.
The aerial platform has a simple boom conguration
that provides maximum safety and control ability
combined with a robust construction to withstand a
demanding working environment
The aerial platform is designed for a two man capacity
(200 kg Safe Working Load). The machine incorporates
a bottom boom with a tie-rod, a short vertical boom and
a top boom with a telescope section.
The hydraulic system design incorporates a failsafe
with built in hydraulic lock valves on all of the rams as
a precaution against hose failure. The aerial platform is
controlled by means of proportional manual controls of
the ‘direct hand’ lever operating type.
Emergency lowering valves are also tted to allow the
machine to be lowered from the ground or platform
controls.
The machine has four hydraulically operated outriggers
which are tted with load sensing interlocks to prevent
the booms from being raised without the outriggers
being extended and under load. An interlock prevents
the hydraulic outriggers from being accidentally
retracted while the booms are raised. Warning lights
are also available to show the power supply is on and
each of the outriggers is under load.
The standard machine includes the following features:
yUpper controls
yLower controls
yEmergency lowering
yPlatform overload alarm
yOutriggers
yTie down lugs
yGuardrail
yPlatform
yHydraulic proportional system
y3 stage lift cylinder
yStabilizer feet
The aerial platform has been manufactured to conform to
all applicable requirements of the following organizations.
yOccupational Safety and Health Administration
(OSHA)
yAmerican National Standards Institute (ANSI)
yCanadian Standards Association (CSA)
Options
The following options may be provided on the machine:
yFlashing Amber light
yNylon Spreader Pads
• Work Lights in Platform
• Friction Drive Assist Package
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.
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.

Chapter 1 – Introduction
2 TL37J – 511116-000-EN-A
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 could
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 per-
form 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 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
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 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 Lessees of
ANSI/SIA A92.6-2006 Self-Propelled Elevating 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.snorkellifts.com

TL37J – 511116-000-EN-A 3
Chapter 2 – Specications
Component Identication
Right Side
Left Side
Emergency Lowering Valve
Boom Structure
Lower/Ground
Controls
Outriggers
Identication
number plate
Toeboards
Platform Controls
Platform
Wheels
Safety
Harness
Rear Lights
Battery Disconnect-
Plug
Chassis Manual
Holder
Slew Lever
Emergency Lowering Valve Platform Overload Switch
Emergency Lowering
Hand Pump
Jockey Wheel

Chapter 2 – Specications
4 TL37J – 511116-000-EN-A
General Specications
Operating Dimensions
Maximum platform height 36’ (11.1m)
Guard rail height 44.5”(1.13m)
Maximum working height 40’(12.23m)
Platform length 47”(1.2m)
Platform width 31.5”(0.8m)
Toeboard height 6.3”(0.16m)
Maximum outreach
(from centre of rotation) 18’(5.6m)
Outrigger raised height 37.8”(0.96m)
Travel Dimensions
Towing length 23’(6.9m)
Towing width 5’(1.47m)
Stowed height 7’(2.02m)
Weight
Weight (battery model)
UN-LADEN 3483.3 lb(1580kg)
Weight (battery model + friction
drive) UN-LADEN 3747.9 lb(1700kg)
Weight(bi-fuel model) 3549.4 lb(1610kg)
Operating Parameters
Safe working load 473.99 lb(215kg)
Maximum horizontal pull 89.9 lbs(400N)
Maximum wind speed 28 mph(12.5m/s)
Rotation 700°
Platform slew 90°
Lift system 3 stage lift cylinder
Control system Hydraulic proportional
Outrigger raise 53 seconds
Outrigger lower 60 seconds
Platform raise 83 seconds
Platform lower 38 seconds
Maximum ground slope 5°
Stabilizer feet to +/-5°
accomodate ground
uneveness of at least 10°
Tires 185R14C
Brakes Hand brake (spring release)
Hydraulic System
Hydraulic reservoir capacity 3.96 US gal (15 litres)
Maximum hydraulic
system pressure 3045.79 psi (210 bar)
Hydraulic uid temperature ISO #22
normal above 32 °F (0°C)
Electrical System
Energy source 24V battery 4 X 6V
225 Ampere hour/ 230V
mains power/ bi-energy/
petrol & battery power
System voltage 24 DC
Battey duty cycle 70.5% in 67.87 minutes
Battery charger Auto selectable dual
input :
AC input 100-240V 50-60 Hz
8A Output: 24V - 18A
Maximum Wind Speed 28 mph (12.5 m/s)
Operating Envelope

TL37J – 511116-000-EN-A 5
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.
OUTRIGGERS: Take care when lowering outriggers, en-
sure outriggers are located on rm solid ground. Ensure
all cables and other obstructions are removed before low-
ering, electrical cables can get damaged under outriggers.
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 in-
adequate 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 A92.6.
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
Table 1 – Minimum Safe Approach Distance
Prestart Inspection
Perform a prestart inspection before each shift as de-
scribed in Chapter 8. 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.
Figure 3 – Minimum Safe Approach Distance
Denotes
prohibited
zone

Chapter 3 – Safety
6 TL37J– 511116-000-EN-A
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:
yDebris
ySlopes
yDrop-offs or holes
yBumps and oor obstructions
yOverhead obstructions
yUnauthorized persons
yHigh voltage conductors
yWind and weather conditions
yInadequate 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 (clas-
si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 prac-
tice is to have qualied personnel in the immediate work
area to:
yHelp in case of an emergency
yOperate emergency controls as required
yWatch for loss of control by platform operator
yWarn the operator of any obstructions or hazards that
may not be obvious to them
yWatch for soft terrain, sloping surfaces, drop-offs, etc.
where stability could be jeopardized
yWatch for bystanders and never allow anyone to be
under while operating 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
clearance around the machine before moving the
chassis 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.
yDo not engage in any form of horseplay or permit rid-
ers any place other than in the platform.
Secure all accessories, containers, tools and other ma-
terials 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 an-
other platform.
Warning
The potential for an accident increases when operat-
ing an aerial platform that is damaged or malfunction-
ing. 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 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.
Make sure the area below the platform is free of person-
nel 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.
Tip-Over and Falling Hazards
Operate the aerial platform only on a rm, at, level sur-
face 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 outrigger level sensor information. Raise the
platform only when the aerial platform is on level ground.
Take care when lowering outriggers, ensure outriggers
are located on rm solid ground. Ensure all cables and
other obstructions are removed before lowering, electrical
cables can get damaged under outriggers.
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. Do not
raise the platform outdoors in wind speeds above 28
mph (12.5 m/s).

Chapter 3 – Safety
TL37J – 511116-000-EN-A 7
Do not operate the aerial platform within 4′(1.2 m) of any
drop-off or hole.
Do not raise the platform in winds above 28 mph (12.5 m/s).
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 entry doors closed.
Make sure that all protective guards, cowlings, and doors
are securely fastened.
Do not exceed the platform capacity nor the platform-
extension capacity as indicated on the platform rating
placard on the platform. Do not carry loads that extend
beyond the platform guardrails without prior written con-
sent from Snorkel.
Do not operate the aerial platform from trucks, trailers, rail-
way 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 boom structure becomes caught
on an adjacent structure or other obstacle and is
prevented from normal motion, reverse the control to
free the platform.
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. If you are using a fall restraint, transfer your anchor-
age from one structure to the other before stepping
across.
2. Remember that you might be transferring to a
structure where personal fall arrest is required.
3. Use the platform entrance, do not climb over or
through the guardrails.
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 com-
bine 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 could 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 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.
Placards and Decals
The aerial platform is equipped with placards and decals
that provide instruction for operation and accident preven-
tion. Do not operate the aerial platform if any placards or
decals are missing, damaged, or illegible.

Chapter 3 – Safety
8 TL37J– 511116-000-EN-A

TL37J – 511116-000-EN-A 9
Chapter 4 – Safety Devices
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 Buttons
Emergency stop buttons are tted on the machine to stop
operation in an emergency. There are two emergency
stop buttons; one on the upper control panel and the
other on the lower control panel
At the lower controls, the emergency stop is a two-position
red push button (refer to Figure 4.1).
Figure 4.1 – Emergency Stop Buttons
yPush the emergency stop button inward to disconnect
power to all control circuits.
yTwist and pull the button outward 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.
Push the emergency stop button inward when the upper
controls are not in use to protect against unintentional
operation.
At the upper controls, the emergency stop is a two-
position red push button (refer to Figure 4.1).
The Emergency Stops
are reset by twisting in a
clockwise direction
yPush the emergency stop button inward to disconnect
power to the upper control circuits.
yTwist and pull the button outward to restore power.
Control Select/Ground Operation Switch
The switch controlling operation of the machine is split
into 3 categories namely the upper controls position, the
Off position and the lower controls position as shown
in Figure 4.2
Upper
Controls
O
Lower
Controls
Outriggers LED
Lights
Control Select/
Ground Opera-
tion Switch
Figure 4.2 - Control Select Positions
To be able to control the aerial platform, the control
select/ground operation switch must either be set to the
lower controls position or the upper controls position.
When the aerial platform is not in use, the control select/
ground operation switch should be set to the off position.
Note
The control select positions are only available at the
lower control station.
Outrigger Indicators
The LED lights at the lower control station as shown in
Figure 4.2 are indicators for outriger stability.
To operate the outriggers;
• Firstly, ensure the aerial platform is not within
4’(1.2m) of any drop-off or hole and also clear of
person(s).
• Set the key switch as shown on Figure 4.2 to the
lower controls position.
• Pressing down on the outrigger raise/lower button
as shown in Figure 4.2, drop or raise the outriggers
using the outrigger raise/lower levers as shown in
Figure 4.3.
Note
When the outriggers are being raised or lowered, an
alarm sounds to make all person(s) around the ma-
chine aware of the outrigger movements.

Chapter 4 – Safety Devices
10 TL37J – 511116-000-EN-A
Slew Lever
insert
Slew
Lever
Figure 4.5 – Slew Lever Location and Insert
Emergency Lowering Valves
In the event of a power failure, the emergency lowering
valve on the ram can be used to lower the booms.
This process involves assistance from the ground.
• Operate the lower ram valve rst because it is clos-
er to the ground
• Press on the lowering valve button to initiate lower-
ing and faciliate access to the top ram valve.
Note
Each emergency ram valve will automatically close
when the button is released.
Figure 4.6 – Emergency Valve Location
Danger
If the emergency lower is used due to a machine
defect, do not use the machine. Contact your local
Snorkel representative.
Warning
If the emergency lower is used, the top and bottom
booms must be fully extended then fully lowered
before work can continue.
Bubble
Indicator Outrigger
Levers
Figure 4.3 – Outrigger Location & Bubble Indicator
When the outriggers are securely under load, the LED
lights on the ground control station begin to illuminate
showing a green colour as shown in Figure 4.4.
Figure 4.4 – LED Indicator of Outrigger Under
Load/Not Under Load
The bubble indicator as shown in Figure 4.3 must be
used always to ensure the aerial platform is level on
the ground and safe to use.
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 within 4′(1.2 m) of any drop-off, hole,
or other tip-over hazard.
Emergency Slew
The emergency lowering lever may be used to lower
the platform if there is a malfunction in the hydraulic or
electrical system.
In the event of a failure, the machine can be manually
slewed by moving the slew platform clockwise or anti-
clockwise by inserting the slew lever into the insert and
rotating the gearbox (refer to Figure 4.5).
The slew lever for the aerial platform is located on the
side of the chassis as shown in Figure 4.5.

Chapter 4 – Safety Devices
TL37J – 511116-000-EN-A 11
After emergency lowering, any further powered
lowering could cause an airlock in the hydraulic
system. This could cause the hydraulic operation
to fail.
All booms must be fully extended/raised, then low-
ered before work can recommence.
Emergency Lowering Hand Pump
The emergency lowering hand pump procedure is
available from the upper control station. In the event
of a power failure, the hand pump procedure to use is
as follows:
• Insert the hand pump into the pump shaft.
• Move the platform raise/lower levers to the required
direction of movement and operate the hand pump.
• Continue pressing down on the platform raise/low-
er levers when the machine starts to lower.
Hand Pump Platform
Raise/Lower
Levers
Figure 4.7 – Hand Pump Emergency Lowering
Procedure
Guardrails
The guardrails help protect personnel from falling off
the platform.
The guard rail system includes:
• Top rail
• Mid rail
• Lock rail strap
• Toeboards around the sides of the platform
The lock rail allows for access to the platform. The lock
rail must be securely closed except when personnel
are entering or leaving the platform.
Top Rail
Mid Rail
Toeboard
Lock Rail
Strap
Figure 4.8 – Platform

Chapter 4 – Safety Devices
12 TL37J – 511116-000-EN-A

TL37J – 511116-000-EN-A 13
The aerial platform is equipped with several gauges to
monitor the condition of the machine before and during
operation.
Battery Charge Indicator
The battery charger has three LED’s (refer to Figure 5.1)
which indicate the charger status.
Figure 5.1 – LED Charge Indicators
The LED’s are visible on the battery charger.
• 50% green LED blinking – indicates that the batteries
are 0% to 50% charged.
• 50% solid green LED light and 75% green LED blink-
ing – indicates that the batteries are 50% to 75%
charged.
• 50% solid green LED light, 75% solid green LED light
and green LED blinking – indicates that the batteries
are 75% to 100% charged.
• 50% solid green LED light, 75% solid green LED light
and a 100% solid green LED light – indicates that the
charge cycle is complete.
Diagnostic Center Display
The diagnostic center LCD display (refer to Figure 5.2)
is located at the lower control station. The LCD display
shows:
• The accumulated aerial platform operating time.
• The available battery power to operate the machine.
LCD
Display
Figure 5.2 – Diagnostic Center LCD Display
Chapter 5 – Gauges and Displays

Chapter 5 – Gauges and Displays
14 TL37J – 511116-000-EN-A

TL37J – 511116-000-EN-A 15
Chapter 6 – Batteries
The battery tray contains four, 6 volts 225ah batteries.
These batteries supply 24 volt DC electrical power to
operate the aerial platform control systems. Proper ma-
chine operation depends on well maintained and charged
batteries.
General Maintenance
Always keep the batteries clean, free of dirt and corrosion.
A lm on top of the battery can accelerate discharge.
Warning
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.
Use distilled water to rell the batteries. Avoid water
containing metallic solids such as iron which can reduce
the life of the batteries.
Consult a battery charger specialist if extreme tempera-
ture use is unavoidable.
yCold reduces battery capacity and retards charging.
yHeat increases water usage and can result in over-
charging.
yVery high temperatures can cause thermal run away
which may lead to an explosion or re.
Charging
The aerial platform is equipped with a manual plugin bat-
tery charger that will completely recharge the batteries.
Warning
Batteries give off hydrogen and oxygen that can com-
bine explosively. Death or serious injury can result
from a chemical explosion. Charge the batteries only
in a well ventilated area away from sparks or ame.
It may take from 1 1/2 to 16 hours to recharge the batteries
depending on the amount of discharge. If the charging
cycle exceeds 16 hours without the batteries being fully
recharged, shut off the charger and have the batteries
checked.
Fully recharge the batteries, immediately after use.
yOne charging cycle per day is preferred.
yFully charged batteries perform best.
yThe deeper the discharge, the fewer number of cycles
a battery will deliver. Deep discharges deteriorate the
battery quicker than light shallow cycles.
yAn overly discharged battery may need to be cycled
a few times before it can fully recover.
yIf a battery begins to heat before becoming fully
charged, it may be necessary to recharge and dis-
charge the battery a few times.
Use the following procedure to charge the batteries.
1. Check the battery water level. Add water to indi-
vidual cells only if the plates are exposed. Replace
the battery caps.
2. Plug the charger into a properly grounded AC outlet
using a 3 conductor, 12 gauge or larger extension
cord. The extension cord must be as short as pos-
sible and in good electrical condition.
3. Leave the charger plugged in until the batteries are
fully charged.
4. Unplug the extension cord after turning the charger
off. Allow the batteries to cool off after charging.
5. Check the battery water level. Add water to indi-
vidual cells only if the plates are exposed. Replace
the battery caps.

Chapter 6 – Batteries
16 TL37J – 511116-000-EN-A