Snorkel A38E User manual

OPERATORS
MANUAL
Part number 514252-000-EN
Nov 2016
Serial Number 007300 +

A38E Work Platform i
OPERATORS MANUAL
A 38E
Aerial Work Platform
Nameplate
The Serial Number of the Work
Platform is also stamped on the
inside of the Chassis, close to the
Steering Cylinder.
The A38E work platform meets and exceeds the requirements of both:
En280:2001 and ANSI A92.5 (1992)

Page 1
OPERATION MANUAL
WARNING
All personnel shall carefully read, understand and follow all safety rules and operating instructions before
operating or performing maintenance on any Snorkel aerial work platform.
Safety Rules
Electrocution Hazard Tip Over Hazard Collision Hazard Fall Hazard
UpRi
ghtAB38
THIS MACHINE IS NOT
INSULATED!
NEVER elevate the platform or
drive the machine while elevated
unless the machine is on a rm,
level surface.
NEVER position the platform
without rst checking for overhead
obstructions or other hazards.
NEVER climb, stand, or sit on
platform guardrails or midrail.
USE OF THE AERIAL WORK PLATFORM: This aerial work platform is intended to lift persons and his tools as well as the material
used for the job. It is designed for repair and assembly jobs and assignments at overhead workplaces (ceilings, cranes, roof structures,
buildings etc.). All other uses of the aerial work platform are prohibited!
THIS AERIAL WORK PLATFORM IS NOT INSULATED! For this reason it is imperative to keep a safe distance from live parts of
electrical equipment!
NEVER get closer than the minimum distance recommended by your National Regulations.
Exceeding the specied permissible maximum load is prohibited! See “Platform Capacity” for details.
The use and operation of the aerial work platform as a lifting tool or a crane is prohibited!
NEVER exceed the manual force allowed for this machine. See “Manual Force” for details.
DISTRIBUTE all platform loads evenly on the platform.
NEVER operate the machine without rst surveying the work area for surface hazards such as holes, drop-offs, bumps, curbs, or
debris; and avoiding them.
OPERATE machine only on surfaces capable of supporting wheel loads.
NEVER operate the machine when wind speeds exceed this machine’s wind rating. “Beaufort Scale” for details.
IN CASE OF EMERGENCY push EMERGENCY STOP switch to deactivate all powered functions.
IF ALARM SOUNDS while platform is elevated, STOP, carefully lower platform. Move machine to a rm, level surface.
Climbing up the railing of the platform, standing on or stepping from the platform onto buildings, steel or prefab concrete structures,
etc., is prohibited!
Dismantling the entry gate or other railing components is prohibited! Always make certain that the entry gate is closed and securely
locked!
It is prohibited to keep the entry gate in an open position when the platform is raised!
To extend the height or the range by placing of ladders, scaffolds or similar devices on the platform is prohibited!
NEVER perform service on machine while platform is elevated without blocking elevating assembly.
INSPECT the machine thoroughly for cracked welds, loose or missing hardware, hydraulic leaks, loose wire connections, and
damaged cables or hoses before using.
VERIFY that all labels are in place and legible before using.
NEVER use a machine that is damaged, not functioning properly, or has damaged or missing labels.
To bypass any safety equipment is prohibited and presents a danger for the persons on the aerial work platform and in its working
range.
NEVER charge batteries near sparks or open ame. Charging batteries emit explosive hydrogen gas.
Modications to the aerial work platform are prohibited or permissible only at the approval by Snorkel .
AFTER USE, secure the work platform from unauthorized use by turning the keyswitch off and removing key.
The driving of MEWP’s on the public highway is subject to regulations made under the Road Trafc Acts.
ALWAYS use a full body harness, prior to raising the platform, as recommended by the Health and Safety Executive (H1/05/05)

Page 2 Operation Manual
CONTENTS
Safety Rules.........................................................................................................................................Page 1
Contents.............................................................................................................................................. Page 2
1.0 Introduction & Specications
1.0 Introduction .......................................................................................................................................... Page 3
Purpose ............................................................................................................................... Page 3
Scope .............................................................................................................................................. Page 3
1.1 General Information
Platform .......................................................................................................................................... Page 3
Control Box ..................................................................................................................................... Page 3
Elevating Assembly .......................................................................................................................... Page 3
Rotation Gear ................................................................................................................................... Page 3
Drive & Steer Systems ...................................................................................................................... Page 4
Power System .................................................................................................................................. Page 4
Control System ................................................................................................................................. Page 4
Chassis ............................................................................................................................................ Page 4
A38E Purpose & Limitations ............................................................................................................. Page 4
Snorkel Guard Overide Switch............................................................................................................ Page 4
1.2 Specications ........................................................................................................................................ Page 5
1.3 Notes .................................................................................................................................................... Page 6
2.0 Machine Preparation
2.1 Preparation For Use .............................................................................................................................. Page 7
2.2 Preparation For Shipment ...................................................................................................................... Page 7
2.3 Forklifting The Work Platform ................................................................................................................ Page 7
2.4 Lifting The Work Platform ...................................................................................................................... Page 7
2.5 Transport by Truck ................................................................................................................................. Page 7
2.6 Manual Brake Release ............................................................................................................................ Page8
2.7 Storage ................................................................................................................................................. Page 8
2.8 Charging ............................................................................................................................................... Page 9
3.0 Operation
3.0 Introduction .........................................................................................................................................Page 11
General Functioning ........................................................................................................................Page 11
Driving ...........................................................................................................................................Page 11
Steering ..........................................................................................................................................Page 11
Operating the Booms .......................................................................................................................Page 11
Design Features .............................................................................................................................. Page 12
3.1 Safety Rules & Precautions ................................................................................................................... Page 13
3.2 Controls & Indicators .......................................................................................................................... Page 14
3.3 Pre-Operation Inspection ..................................................................................................................... Page 16
3.4 Opertaion ........................................................................................................................................... Page 17
Elevating & Lowering The
A38E Work Platform .................................................................................................................. Page 17
Travel With The Work Platform
Lowered ................................................................................................................................... Page 17
Travel With The Work Platform
Elevated ................................................................................................................................... Page 18
Levelling ....................................................................................................................................... Page 18
Platform Rotate .............................................................................................................................. Page 18
Hydraulic Platform Rotate .......................................................................................................... Page 18
Manual Platform Rotate ............................................................................................................. Page 18
Emergency Situations &
Emergency Override ....................................................................................................................... Page 18
Emergency Lowering ............................................................................................................ Page 18
Control From Ground Level ............................................................................................................ Page 18
After Use Each Day ........................................................................................................................ Page 20
Manual Rotation ............................................................................................................................. Page 20
Manual Telescopic Retraction .......................................................................................................... Page 20
Snorkel Guard Overide Switch.......................................................................................................... Page 20
3.5 Daily Preventitive Maintenance Checklist .............................................................................................. Page 22
Notes .................................................................................................................................................. Page 23

Introduction & Specications Section
1.0
A38E Work Platform Page 3
1.0 Introduction
PURPOSE
The purpose of this Service & Parts Manual is to
provide instructions and illustrations for the operation
and maintenance of the A38E Work Platform
manufactured by Snorkel (See Figure 1-1).
SCOPE
The manual includes the procedures and
responsibilities which must be strictly adhered to
for proper operation, maintenance, adjustment, and
repair of this product. The Maintenance Section
further covers preventative maintenance and trouble
shooting.
1.1 General Information
The A38E is a quickly deployable self propelled
aerial work platform, designed to raise two operators
with hand tools to a work height of up to 13.45 m
(44.12 ft.) i.e. a platform oor height of 11.45 m
(37.56 ft.). It is designed to provide mobility with the
Platform in the raised or lowered position, although
travel with the Platform raised is limited to a low
speed. The boom assembly and telescope functions
are operated by a hydraulic pump driven by a DC
electric motor. Two DC electric traction motors
coupled to two braked gearboxes regulate the drive
function.
PLATFORM
The platform is large enough for two operators and
has a free-draining perforated oor with 150 mm (5.9
inches) toeboards. Hand rails are constructed from
steel tubing and a safety drop-bar is provided at the
entrance. Safety harness anchor points are also
tted in the oor of the platform. The primary Control
Box is tted permanently within this platform.
AW A R N I N G A
DO NOT begin using the machine until the
platform entrance drop bar is in the fully lowered
position.
CONTROL BOX
The control box is permanently tted at the front
centre of the platform. It features a Joystick which
will provide proportional control for raising or
lowering either of the two booms, extending or
retracting the Telescopic Boom, rotating (slewing)
the entire Booms, Platform (if Platform Rotate tted)
& Posts Assembly or driving. A safety feature which
is incorporated into the Joystick’s operation is the
Interlock Switch. This must be activated at all times
while operation is required. This allows for one-
handed operation. A complete explanation of control
functions can be found in Section 3.
ELEVATING ASSEMBLY
The platform is raised and lowered by a combination
of two steel lift booms and one telescopic boom,
each of which is operated by a hydraulic cylinder
which in turn is actuated by hydraulic power from the
motor driven pump. Solenoid operated valves control
to which cylinder the hydraulic oil is directed. Each
cylinder features an integral holding valve to prevent
uncontrolled descent in the case of a hose burst.
ROTATION GEAR
The Booms & Posts Assembly can be rotated to
provide up to 5.6 m (18.4 ft.) of side outreach,
measured from the centreline of rotation to the front
of the Platform. This is done by means of an integral
hydraulic motor driving a Worm Drive Unit, around a
large diameter Slew Gear.
Figure 1-1: A38E Work Platform
1.
2.
3.4.
5.
6.
7.
1. Platform
2. Elevating Assembly
3. Chassis
4. Power Module
5. Control Module
6. Platform Control Box
7. Lower Control Box

Page 4 A38E Work Platform
Section
1.1 Introduction & Specications
DRIVE & STEER SYSTEMS
The A38E Work Platform is restricted to low speed
drive when the Platform is raised above the Boom
Rest Limit Switch. The Traction controller controls
the application of drive from the Joystick by means
of two Traction Motors, which are assembled to the
drive wheels via a Drive Reduction Gearbox.
Steering of the A38E Work Platform is controlled by
the P600, which controls the signals activating a
double acting cylinder. An Operator can Steer left or
right by depressing the Rocker Switches on top of
the Joystick, while activating the Interlock Switch.
POWER SYSTEM
The power system incorporates eight 6V batteries
driving the drive traction motors, or the 4kW (5.4HP)
electric motor which in turn drives the hydraulic
pump. The application of this hydraulic pressure is
performed by the Control System.
CONTROL SYSTEM
The machine is provided with fully proportional
controls by means of the interaction between
a P600, electronic motor controller and a
proportional joystick. The P600 and motor controller
regulate the drive motor/pump speed and hence the
ow of oil reaching the cylinders, the Worm Drive
Unit or the Drive Reduction Gearbox. It regulates
the direction of ow of the hydraulic oil via the
solenoid valves located on the manifold block, and
it also monitors the operation of all switches on the
machine via the machine harness system.
The motor control units are located, in the left hand
chassis module. The manifold block is located on the
hydraulic tank. This is accessible by removing the
main cover.
CHASSIS
The chassis is a structural frame designed to support
all the components of the A38E Work Platform.
A38E PURPOSE & LIMITATIONS
The purpose of the A38E work platform is to provide
a quickly deployable variable height work platform.
It is capable of lifting two people with work tools
up to an upper limit of 215 kg (ANSI 475 lbs) in
total. The unit will provide the ability to reach over
obstacles but must be used on rm level ground.
See Specication table on page 1-3.
The platform must only be used on rm level or
slightly uneven ground capable of supporting the
maximum load generated under the four wheels. Do
not use on soft or severely sloping ground.
ADANGER A
NOTE: It should be recognised that if the tilt
switch senses a degree of slope greater than
3º the elevating circuits will lockout and sound
a warning alarm. The Emergency Override
should then be used, to lower the Elevating
Assembly.
SNORKEL GUARD OVERRIDE
SWITCH
When the Snorkel Guard system is activated, the
Snorkel Guard override switch is used to override
the system to operate Upper and Lower Boom down
functions. The switch is spring returned to the normal
operation position.
• Hold the switch upward to override the Snorkel
Guard System.
• Release the switch to the downward position to
resume normal machine operation.

Introduction & Specications Section
1.2
A38E Work Platform Page 5
1.2 Specications
Table 1-1: Specications
ITEM METRIC IMPERIAL (ANSI)
Duty Cycle 45% of 8 hour shift 45% of 8 hour shift
Platform Size 0.58 m x 1.3 m (inside gaurdrails) 1.77 ft x 4.3 ft (inside gaurdrails)
Max. Platform Capacity 215 kg 475 lbs
Indoors 2 People 2 People
Outdoors 1 People 2 People
Min. Platform Floor Height
13.45 m
11.45 m
0.65 m
44.12 ft
37.56 ft
2.13ft
6.10 m 20.00 ft
Platform Height At
Maximum Outreach 5.40 m 17.72 ft
Stowed Dimensions
Length
Width
Height
4.04 m
1.50 m
2.00 m
13.25 ft
4.92 ft
6.56 ft
Ground Clearance 0.12 m 0.39 ft
Wheel Base x Gauge 2.00 m x 1.27 m 6.56 ft x 4.16 ft
Rotation 362 degrees non-continuous 362 degrees non-continuous
Unloaded Weight 3,795 kg 9,164 lbs
With Load/ Max Weight 4,010 kg 9,639 lbs
Drive Speed Stowed 0 - 4 km/h 0 - 2.49 mph
Drive Speed Elevated 0 - 0.4 km/h 0 - 0.25 mph
Maximum Gradeability 36% 36%
Inside Turning Radius 0.40 m 1.31 ft
Outside Turning Radius 2.40 m 7.87 ft
Power Source 48V DC 4kW, 8 X 6V 210Ah Batteries 48V DC 5.4HP, 8 X 6V 210Ah Batteries
System Voltage Control 12V 12V
Battery Charger Auto Dual AC input 100-240V ~ 50/60Hz 18A
Output 48V, 25A
(Auto Dual AC input 100-240V ~ 50/60Hz 18A)
Output 48V, 25A
Hydraulic Oil Tank Capacity 25 Litres 6.5 Gallons US
Max. Hydraulic Pressure 145 bar 2105 psi
Hydraulic Oil Grade ISO #46 ISO #46
Cylinder Types
2 Double Acting Lift Cylinders With Lock
Valves And Manual Emergency Lowering
Facility.
1 Double ActingTelescopic Cylinder
1 Double Acting Plat. Rotate Cylinder
2 Double Acting Lift Cylinders With Lock
Valves And Manual Emergency Lowering
Facility.
1 Double ActingTelescopic Cylinder
1 Double Acting Plat. Rotate Cylinder
Refer to Section 5 of the Service & Parts
Manual
Refer to Section 5 of the Service &
Parts Manual
Control System One handed Proportional Joystick
Operating Energy Efcient Motor Control
System
One handed Proportional Joystick
Operating Energy Efcient Motor
Control System
Wheels/Tyres 400 mm Diameter Steel Disc Wheel With
Solid All Surface Tyres
15.75 inch Diameter Steel Disc Wheel
With Solid All Surface Tyres
Braking Automatic Spring Applied Hydraulic
Release
Automatic Spring Applied Hydraulic
Release
Max Noise Level 69.5 dB(A) 69.5 dB(A)

Page 6 A38E Work Platform
Section
1.3 Introduction & Specications
NOTES: