Upright TL33 Guide

SERVICE & PARTS
MANUAL
TL33
Aerial Work Platform
Serial Numbers 1001 to current
When contacting UpRight for service or parts information,
be sure to include the MODEL and SERIAL NUMBERS
from the equipment nameplate. Should the name plate be
missing the SERIAL NUMBER is also stamped on the axle
mounting plate on the right hand side of the machine.
Manual Part Number 57009-000 Rev 0 Dec.‘96
UpRight
UpRight Ireland Ltd.,
Pottery Road,
Dun Laoire,
Ireland.

TL33 Work Platform i
Foreword
SPECIAL INFORMATION
Indicates the hazard or unsafe practice that
could result in severe injury or death.
Indicates the hazard or unsafe practice that
could result in minor injury or property damage.
Notes: Give helpful information.
WORKSHOP PROCEDURES
CAUTION: Detailed descriptions of standard
workshop procedures, safety principles and service
operations are not included. Please note that this
manual does contain warnings and cautions against
some specific service methods which could cause
cause personal injury, or could damage a machine
and make it unsafe. Please understand that these
warnings cannot cover all conceivable ways in
which service, whether or not recommended by
UpRight Ireland Ltd., might be done, or of the
possible hazardous consequences of each
conceivable way, nor could UpRight Ireland Ltd.
investigate all such ways. Anyone using service
procedures or tools, whether or not recommended
by UpRight Ireland Ltd., must satisfy themselves
thoroughly that neither personal safety nor machine
safety will be jeopardised.
All information contained in this manual is based on the
latest product information available at the time of
printing. We reserve the right to make changes at any
time without notice. No part of this publication may be
reproduced, stored in retrieval system, or transmitted, in
any form by any means, electronic, mechanical,
photocopying, recording, or otherwise, without prior
written permission of the publisher. This includes text,
figures and tables.
CAUTION
WARNING
Introduction &
Specifications
General description and machine specifications 1.0
Machine Preparation
Information on preparation for use & shipment,
transporting and storage. 2.0
Illustrated Parts
Breakdown
Schematics and valve block diagram with description
and location of components 7.0
Operation
Operating instructions and safety rules. 3.0
Maintenance
Preventative maintenance and service information
4.0
Troubleshooting
Causes and solutions to typical problems 5.0
Schematics
Schematics and valve block diagram with description
and location of components 6.0

ii TL33 Work Platform
Foreword
NOTES

TL33 Work Platform I
Contents
Section
i
Section Page
No. No.
1.0 Introduction & Specifications
1.0 Introduction ................................... 1-1
Purpose.................................................. 1-1
Scope..................................................... 1-1
1.1 General Information ............................... 1-1
Description............................................. 1-1
Purpose and Limitations ......................... 1-2
1.2 Specifications ................................... 1-2
2.0 Machine Preparation
2.1 Preparation for use................................. 2-1
2.2 Preparation for shipment ........................ 2-1
2.3 Forklifting of workplatform...................... 2-2
2.4 Lifting Work Platform ............................. 2-2
2.5 Transport ................................... 2-2
2.6 Storage ................................... 2-2
Preservation........................................... 2-2
Batteries................................................. 2-2
3.0 Operation
3.0 Introduction. .................................. 3-1
General Functioning............................... 3-1
Setting up machine for use..................... 3-1
Operating the booms.............................. 3-1
Design Features.................................... .3-1
3.1 Safety Rules and Precautions............. ... 3-2
3.2 Controls and Indicators....................... ... 3-3
Platform Controls................................. .. 3-3
Lower Controls....................................... 3-4
3.3 Pre-Operation Inspection....................... 3-5
3.4 Operation ................................... 3-6
Towing ................................................ . 3-6
Deploying the outriggers......................... 3-6
Elevating platform................................ .. 3-7
Emergency Lowering ............................. 3-7
Emergency Rotation .............................. 3-8
4.0 Maintenance
4.0 Introduction .................................. 4-1
4.1 Preventative Maintenance ...................... 4-1
Preventative Maintenance Table Key ..... 4-2
Preventative Maintenance Report .......... 4-2
4.2 Battery Maintenance............................... 4-3
Battery Inspection and Cleaning.......... ... 4-3
Battery Charging.................................. .. 4-3
Battery Cell Equalization ................. ...... 4-4
4.4 Lubrication .................................. 4-5
Hydraulic Oil Reservoir and Filter........ ... 4-5
Fluid Level............................................ .4-5
Oil and Filter Replacement................... .. 4-5
4.5 Setting Hydraulic pressures.................... 4-6
Main Relief valve.................................. .4-6
Section Page
No. No.
4.6 Maintenance on Elevating Assembly.......4-6
Setting Slew Cut-Out Limit Switch...........4-7
Outrigger Limit Switches...................... ...4-8
4.7 Hydraulic Manifold ..................................4-9
Removal............................................... ..4-9
Disassembly......................................... ..4-9
Cleaning and Inspection..........................4-9
Assembly................................................4-9
Installation............................................ ..4-9
4.8 Hydraulic Pump ..................................4-11
Removal............................................... 4-11
Installation............................................ 4-11
4.9 Wheel Hubs/Bearings ..........................4-11
Maintenance & Adjustment .................. 4-11
Replacing worn bearings /
Hub Oil Seal ........................................ 4-11
4.10 Braking System ................................. 4-13
Principles of Operation..........................4-13
Adjustment of /wheel Brakes ................4-13
4.11 Hydraulic Cylinders.............................. 4-14
Upper Lift Cylinder............................... .4-14
Removal.......................................... .....4-14
Cleaning and Inspection........................4-14
Assembly..............................................4-14
Installation...................................... ......4-14
4.12 Lower Lift Cylinder ...............................4-16
Lower Lift Cylinder............................... .4-16
Removal.......................................... .....4-16
Cleaning and Inspection........................4-16
Assembly..............................................4-16
Installation...................................... ......4-16
4.13 Electric Motor ..................................4-17
Troubleshooting ..................................4-17
Disassembly................................. 4-17
Inspection ................................. 4-17
Reassembly ................................. 4-18
4.14 Adjustment of Overcentre Valves......... 4-20
5.0 Troubleshooting
5.0 Introduction ................................... 5-1
General Procedure..................................5-1
5.1 Trouble shooting charts.......................... 5-2
5.2 General information .............................. 5-4
5.3 D.C. Motor Control ................................ 5-5
5.4 Troubleshooting the MOS90 .................. 5-6
6.0 Schematics
6.0 Introduction ................................... 6-1
6.1 Electrical Schematic ...............................6-3
6.2 Hydraulic Schematic ...............................6-7
Table of Contents

II TL33 Work Platform
Contents
Section
i
Section Page
No. No.
7.0 Illustrated Parts Breakdown
7.0 Introduction .................................. .7-1
7.1 Index .................................. .7-1
7.2 Illustrated Parts ................................... 7-2
Chassis Assembly................................ 7-2
Booms and Posts Assembly................. 7-4
Cage Assembly ................................... 7-6
Axle and Brake Hub Assembly............. 7-8
Hub Assembly ..................................7-10
Brake Assembly..................................7-12
Slew Gearbox Assembly.....................7-14
Lower Control Box Assembly ..............7-16
Tailboard Assembly ............................7-18
Coupling Assembly .............................7-20
Label Kit ..................................7-22
Main Manifold Block Assembly............7-24
Lift Cylinder Assembly ........................7-26
Hydraulic Assembly ............................7-28
Pump Motor Controller Assembly........7-30
Upper Control Box Assembly ..............7-32
Electrical Assembly.............................7-34
Fig. Title Page
No.
1-1 TL33 Work Platform................................1-1
2-1 Lifting the TL33 .................................2-2
3-1 Platform Controls .................................3-3
3-2 Lower Controls .................................3-4
3-3 Releasing Outrigger Lock Pin..................3-6
3-4 Emergency Lowering Valves...................3-8
4-1 Lubrication Points .................................4-5
4-2 Oil and Filter Replacement .....................4-5
4-3 Main Manifold Block................................4-6
4-4 Supporting the Elevating Assembly.........4-6
4-5 Slew Cut-out Limit Switch .......................4-7
4-6 Outrigger Limit Switch.............................4-8
4-7 Main Manifold Block..............................4-10
4-8 Hydraulic Pump . ..............................4-11
4-9 Replacing Bearings / Oil Seal ...............4-12
4-10 Wheel Hub Assembly............................4-12
4-11 Braking Arrangement............................4-13
4-12 Replace Brake Cable ............................4-13
4-13 Upper Lift Cylinder ...............................4-15
4-14 Lower lift Cylinder ...............................4-15
4-15 Hydraulic Cylinder Components ............4-15
4-16 Electrical Test Circuit ............................4-17
4-17 Electric Motor Assembly .......................4-19
6-1 Electrical Schematic ...............................6-5
6-2 Hydraulic Schematic................................6-8
6-3 Hydraulic Manifold...................................6-8
Table Title Page
No.
1-1 Specifications .................................1-2
3-1 Platform Controls and Indicators ............3-3
3-2 Lower Controls .................................3-4
4-1 Preventative Maintenance ......................4-2
4-3 Temperature Correction for Electrolytes..4-4
5-1 Trouble Shooting .................................5-2
5-2 MOS90 Flash Faults...............................5-6
6-1 Electrical Schematic Legend............6-3, 6-4
6-2 Hydraulic Schematic Legend...................6-7
Table of Contents
(cont’d.)
List of Illustrations
List of Tables

TL33 Work Platform 1-1
Introduction & Specifications
Section
1.0
1.0 Introduction
PURPOSE
This manual provides illustrations and instructions for the
operation and maintenance of the TL33 Work Platform
manufactured by Upright Ireland Ltd, Dun Laoire, Ireland.
(See Figure 1-1).
SCOPE
This manual includes both operation and maintenance
responsibilities concerning the TL33 Work Platform’s
readiness. The Maintenance Section covers scheduled
maintenance, trouble shooting, repair, adjustment and
replacement.
1.1 General Information
DESCRIPTION
The TL33 is a two-stage articulating boom lift platform,
designed to raise two operators with hand tools to a work
height of up to 12.3m. It is mounted on a trailer suitable
for towing on public roads at speeds of up to 50 mph /
83Km/h (subject to local regulations). The boom
assembly is operated by a hydraulic pump driven by a
DC electric motor.
Platform
The platform is large enough for two operators and has a
free-draining perforated floor with 150mm toeboards.
Hand rails are constructed from aluminium tubing and a
safety drop-bar is provided at the entrance. Safety
harness anchor points are fitted in the floor of the
platform.
Control Box
The control box is permanently fitted at the front of the
platform, and features a joystick to provide proportional
control of raising and lowering of each boom plus
rotation. A safety ‘Deadman’ switch is provided which
must be pressed at all times if operation is required. This
is integral with the joystick handle allowing one-handed
operation.
A complete explanation of control functions can be found
in chapter 3.
Elevating assembly
The platform is raised and lowered by two steel booms
each of which are operated by a hydraulic cylinder
actuated by hydraulic power from the motor driven
pump. Each cylinder features an integral holding valve to
prevent uncontrolled descent in the case of a hose burst.
Rotation Gear
The booms can be rotated to provide up to 5m side
outreach by means of a hydraulic motor driving a pinion
gear around a large diameter slew gear via a gearbox.
Power Pack
The power pack comprises four 6V batteries driving a
4HP electric motor which drives the hydraulic pump.
The batteries, charger and motor/pump set are located
under the fibreglass covers on either side of the chassis.
Control system
The machine is provided with fully proportional controls
by means of a motor control unit. This unit regulates the
drive motor/pump speed and hence the flow of oil
reaching the cylinders and slew motor via the solenoid
valves located on the manifold block.
The motor control unit is located above the electric motor
in the chassis module. The manifold block is located on
the first post.
Chassis
The chassis is designed for towing on public roads. It is
fitted with suspension and full sized road wheels. Also
fitted is a 50mm ball towhitch, jockey wheel and overrun
braking system with handbrake.
Four ‘Quick set’ fold down outriggers with screw jacks for
level adjustment are provided. Interlocks prevent
operation of the booms until all four outriggers are
deployed. The hydraulic tank is integral with the chassis
members, and a bubble level is fitted to aid levelling of
the chassis before use.
1. Platform
2. Elevating assembly
3. Chassis
4. Control Module
5. Power Module
6. Controller
4
6
2
3
Figure 1-1: TL33 Work Platform
5
1

1-2
TL33 Work Platform
Introduction & Specifications
Section
1.2
Purpose and limitations
The purpose of the TL33 work platform is to provide a quickly deployable, trailer mounted, variable height work platform.
It is capable of lifting two people with work tools up to an upper limit of 215kg in total. The unit will provide the ability to
reach over obstacles and may be used on uneven firm ground provided the chassis is correctly levelled using the screw
jack adjusters prior to elevating.
The platform must only be used on firm level ground capable of supporting
the maximum load generated under the outriggers. All outriggers must be
correctly deployed and the chassis levelled before use. Do not use on soft
or severely sloping ground.
1.2 Specifications* Table 1-1: Specifications
ITEM METRIC IMPERIAL
Duty Cycle 30% of 8hr cycle
Platform Size 0.7m x 1.3m (inside guardrails) 2.3 ft x 4.3ft
Max. Platform Capacity 215Kg 473 lbs
Max. No. of occupants 2 People
Max. Working Height 12.3m 40.3 ft
Max. Platform Floor Height 10.3m 33.8 ft
Max. Working Outreach 5 m 16.4 ft
Travelling Dimensions:
Length
Width
Height
5.5 m
1.6 m
1.99m
18 ft
4.9 ft
6.5 ft
Stabiliser spread 3 m X 3m 10 ft x 10 ft
Rotation 360onon-continuous
Gross weight 1209 Kg 2660 lbs
Max. Towable speed 83 Km/Hr. ** 50 mph **
Energy source 24V DC 4HP, 4 x 6V
220 Ah batteries
System Voltage 24V
Battery Charger 24V 25A 220/110VAC 50/60 Hz
Hydraulic Tank Capacity 8 Litres 2.1 Gallons
Max. Hydraulic System Pressure 140 Bar 2030 P.S.I
Hydraulic Fluid ISO # 46
Lift System 2 x Double acting lift cylinders with lock
valves and manual emergency lower facility
Control System One-hand proportional joystick operating
energy-efficient motor control system
Tyres 6PLY R13
Braking Automatic reverse and overrun brakes plus
handbrake.
*Specifications subject to change without notice.
** Max. speed is subject to traffic regulations in the country in question.
CAUTION

TL33 Work Platform 2-1
Machine Preparation
Section
2.1
2.1 Preparation for use
Read and familiarise yourself with all operating
instructions before attempting to operate machine.
1. Check Hydraulic oil level.
2. Check that batteries are charged.
2.2 Preparation for Shipment
1. Lubricate machine per lubrication instructions in
Section 4.4, Maintenance.
2. Fully Lower the platform.
3. Stow all 4 outriggers.
4. Disconnect the negative (-) battery cable from the
battery terminal.
2.3 Forklifting the Work Platform
NOTE: Lifting is for loading and unloading only.
NOTE: The TL33 is not designed to be forklifted,
and does not have provision on the chassis
to allow this method of lifting. Upright
recommend the procedure below for
handling the machine.
See specifications for weight of work
platform and be certain that lifting
apparatus is of adequate capacity
to lift platform.
2.4 Lifting the Work Platform
The Tl33 may be lifted by an overhead hoist/crane in the
following manner:
Four lifting straps capable of safely supporting the total
weight of the TL33 (1209Kg), and at least 220cm long
are required. This minimum length is important to ensure
the correct lifting angle.
The straps should be positioned as shown in Figure2-1.
The two rear lifting slings should be positioned inside the
“quadrant” outrigger mounting plates. Care must be
taken to ensure the slings do not damage the cable for
the outrigger limit switches (Positions 1 & 2).
the front lifting slings should be positioned under the
towing beam, directly in front of the brake cable anchor
plate. Note that two straps are essential at this point -
one must pass each side of the lower boom and be
positioned between the boom and the tension bars on
either side. (Position 3 & 4).
Care must be taken to avoid damage to covers and other
equipment on the machine.
Figure 2-1: Lifting the TL33
2.5 Transport
The TL33 is a road approved vehicle and therefore may
be transported behind a motor vehicle of suitable towing
capacity.
If the TL33 is to be transported by other means then it
must be securely tied down to the transporting unit at
several points.
Recommended securing points are the four outrigger
support members on the chassis and the towbar. Further
securing points should be used if the terrain on which the
unit is travelling is rough or uneven.
ALWAYS ensure that the handbrake is fully applied and
that all the booms are FULLY stowed.
2.6 Storage
No preparation is required for normal storage. Regular
maintenance per Table 4-1should be performed. If The
work platform is to be placed in long term storage (dead
storage) use the following preservation procedure.
PRESERVATION
1. Clean painted surfaces. If the painted surface is
damaged, repaint.
2. Fill the hydraulic tank to operating level with the
platform fully lowered.Fluid should be visible on
the dip stick.
3. Coat exposed portions of cylinder rods with a
preservative such as multipurpose grease and wrap
with barrier material.
4. Coat all exposed unpainted metal surfaces with
preservative.
BATTERIES
1. Disconnect the battery ground cable and secure to
the chassis.
2. Disconnect the remaining battery leads and secure to
the chassis.
3. Remove the batteries and place in alternate service.
CAUTION
Minimum sling length
220cm
3
4
2
1

2-2
TL33 Work Platform
Machine Preparation
Section
2.6
NOTES

TL33 Work Platform 3-1
Operation
Section
3.0
3.0 Introduction
General functioning
Refer to the Hydraulic and Electrical Schematics,
Section 6
The battery powered electric motor directly drives a two
section hydraulic pump. The low section of the pump is
not used. The high section supplies oil under pressure to
the various platform functions. The oil flow is directed to
the different functions by electrically activated
solenoid valves.
Setting up the machine for use
The TL33 must be set up on firm level ground. The
outrigger set-up is critical for sound stability of the unit
when elevated.
The outriggers are secured in the travel position by a
spring-activated retaining pin. When the outrigger is
lowered the pin locks the leg into the down position by
means of another retaining slot at the bottom of the
‘quadrant’ plate. The screw jack at the end of the
outrigger leg is then lowered until in contact with the
ground surface. Further adjustment off the appropriate
screw jack(s) are then made to level the machine using
the bubble level on the chassis as a guide.
All outriggers are fitted with electrical interlock limit
switches which prevent operation of any functions until all
outriggers are secured in the lowered position and the
outrigger foot is taking the machines weight. Should an
outrigger become unloaded during operation of the
booms an alarm sounds and further operation is
impossible except by means of an emergency override
switch on the cage control box, allowing the operator to
descend and remedy the cause.
Operating the booms
Only when the TL33 is set up according to the above
procedure can raising and lowering of the booms
commence.
The keyswitch at the lower control box can be switched
to platform or chassis controls.
Platform controls provide variable speeds for the boom
functions through the use of a joystick.
This is achieved using a motor control unit which varies
the speed of the motor/pump unit and increases
or decreases the flow of oil to the different functions.
This control unit receives a control signal from the
joystick on the upper controls.
The speed of the motor increases as the control lever is
pushed further away from the neutral (stopped) position.
Note:A deadman trigger is an integral part of the
joystick. This must be depressed for the
functions to operate. (This safety feature
prevents unwanted movement of the booms in
the case of inadvertent movement of the
joystick.)
Chassis controls provide a fixed speed for each of the
boom functions.
Design Features
The TL33 Series Work Platform has the following
features:
• The interlock system on the outriggers ensure that the
machine must be set up safely before use.
• The slew cut-out interlock ensures that the boom
support structure is clear of the towbar before
slewing can commence.
• The energy-efficient motor control units provides long
battery life and smooth proportional control of the
boom functions.
• All cylinders are fitted with hydraulic hose-burst
protection interlocks.
• The on-board charger is fully automatic and charges
the batteries efficiently and economically.
• If the work platform starts to become unstable and one
of the outrigger interlocks becomes de-activated an
alarm will sound in the upper control box. In this
situation power is cut to the upper controls to prevent
boom movement that might increase instability. An
emergency override switch is fitted to allow the booms
to be descend at a controlled speed to bring the
machine back to a stable position.
• In the event of a power loss the two lift cylinders are
fitted with emergency lowering valves which allow the
booms to be lowered at a controlled speed by an
operator on the ground.
• A manual rotation facility is fitted to allow rotation of
the booms in the event of power loss.

3-2
TL33 Work Platform
Operation
Sectio
n
3.1
3.1 Safety Rules and Precautions
Before using the TL33 Work Platform:
NEVERoperate the machine unless you have been fully
trained in its safe use, are medically fit and have read
and fully understood these instructions.
NEVER LEAVE A LIFT UNATTENDED WITH THE
PLATFORM IN THE RAISED POSITION.
ALWAYSposition the machine on firm level ground with
a minimum bearing capacity of 550KN/m 2.
CHECKthat no overhead obstructions exist within the
machines range of movement. DO NOT work within 8
metres of live overhead cables. Set up warning tape
barrier at the safe distance.( THIS MACHINE IS NOT
INSULATED).
DO NOT operate unless all four outriggers are fully
lowered, locked and screwed down to ground level taking
the load of the machine.
DO NOT exceed the safe working load of 215kg
(max. 2 persons plus 55kg equipment)
NEVERsit, stand or climb on guard rail or midrail.
NEVERuse ladders or scaffolding on the platform.
DO NOT use the machine as a crane or for any other
application involving additional loads or forces. The
maximim side force must not exceed 400N.
DO NOT increase wind loadings by fitting items such as
sign boards, flags etc. to the cage or boom.
DISTRIBUTEall loads evenly on the platform. See Table
1-1 for maximum platform load.
NEVERuse damaged equipment. (Contact UpRight
Ireland Ltd. for instructions).
NEVERattach overhanging loads or increase the size of
the working platform.
DO NOT use in winds exceeding 12.5m/s (27mph -
Beaufort Force 6)
NEVERchange or modify operating or safety systems.
INSPECTthe machine thoroughly for cracked welds,
loose hardware, hydraulic leaks, damaged control cable,
loose wire connections and wheel bolts.
NEVERclimb down an elevating assembly with platform
elevated.
NEVERperform service on or in the elevating assembly
while the platform is elevated without first blocking the
elevating assembly.
NEVERrecharge batteries near sparks or open flame;
batteries that are being charged emit highly explosive
hydrogen gas.
SECUREthe work platform against unauthorised use by
turning keyswitch off and removing key from switch.
NEVERreplace any component or part with anything
other than original replacement parts without
manufacturer’s consent.

TL33 Work Platform 3-3
Operation
Section
3.2
3.2 Controls and Indicators
The controls and indicators for operation of the TL33 Work Platform are shown in Figures 3-1 & 3-2. The name and
function of each control and indicator are listed in Tables 3-1 & 3-2. The index numbers in the figure correspond to the
index numbers in the table. The operator should know the location of each control and indicator and have a
thorough knowledge of the function and operation of each before attempting to operate the unit.
The controls and indicators for operation of the TL33 Work Platform are shown in Figure 3-1. The name and function of
each control and indicator are listed in Table 3-1. The index numbers in Figure 3-1 correspond to the index numbers in
Table 3-1. The operator should know the location of each control and indicator and have a thorough knowledge of the
function and operation of each of these before attempting to operate the unit.
Table 3-1: Platform Controls and indicators
INDEX
NO. NAME FUNCTION
1SWITCH :-
ON / OFF -
EMERGENCY
OVERRIDE
Turn clockwise for power 'ON', in centre
position for power 'OFF' and
anticlockwise for 'EMERGENCY
OVERRIDE'. (Must be held against
spring pressure in this position)
2FUNCTION
SELECTOR Select function to be operated.
SELECTOR: Left hand position for
BOOM 1, centre for ROTATE and right
for BOOM 2 operation.
Left hand position for BOOM 1 , centre
for ROTATE and right for BOOM 2
operation.
3EMERGENCY
STOP
SWITCH
Push red button to cut off power to all
functions(OFF). Turn clockwise to
release and restore power (ON).
4JOYSTICK
CONTROL
LEVER
Squeeze to activateDeadman control
and push forward to activate lift or rotate
left function (dependent upon position of
Function Selector2).
Pull back for boom lower or rotate right.
The speed each function operates is
dependent on how far the ever is moved.
INDEX
NO. NAME FUNCTION
5SYSTEM OK
INDICATOR Illuminates to indicate outrigger
interlocks are activated. If not
illuminated check outrigger set-up
immediately (alarm will sound also.
6BATTERY
CONDITION
INDICATOR
This red L.E.D. indicates the
condition of the batteries. It is
constantly illuminated when the
batteries are fully discharged. It
flashes repeatedly when the batteries
have begun to discharge.
It remains off when the batteries are
fully charged.
Figure 3-1: Platform Controls
1
2
3 6 5
O.K.
4
UpRight
TL33
EMERGENCY STOP

3-4
TL33 Work Platform
Operation
Sectio
n
3.2
3.2 Controls and Indicators
Table 3-2: Lower Controls
INDEX
NO. NAME FUNCTION
1KEYSWITCH Turn key clockwise to select
control from ground level,
anticlockwise for platform
control and to the centre
position for power ‘OFF’.
2EMERGENCY
STOP
SWITCH
Push red button to cut off
power to all functions(OFF).
Turn clockwise to release and
restore power (ON).
3ROTATION
CONTROL Move switch to left for ‘ROTATE LEFT’; to the right
for ROTATE RIGHT;. Switch
must be held against spring
pressure while operating. Note
that control is not porportional,
boom will move at a constant,
slow speed.
INDE
XNAME FUNCTION
NO.
4 BOOM 1
CONTROL Move switch up to raise boom no.1, down to lower.
Note that control is not
proportional, boom will
move at a constant, slow
speed.
5BOOM 2
CONTROL Move switch up to raise boom no.1, down to lower.
Note that control is not
proportional, boom will
move at a constant, slow
speed.
NOTE: ALL LOWER CONTROLS OPERATE
AT SLOW, NON-PROPORTIONAL SPEED.
Figure 3-2: Lower Control Box
2
3 4 5
4

TL33 Work Platform 3-5
Operation
SectIon
3.3
3.3 Pre-Operation Inspection
NOTE: Carefully read, understand and follow all safety
rules and operating instructions. Perform the
following steps each day before use.
DO NOT perform service on work platform with
the platform elevated unless the elevating
assembly is properly supported.
1. Remove module covers and inspect for damage, oil
leaks or missing parts.
2. Check the level of the hydraulic oil with the
platform fully lowered. Oil should reach the level of the
filler cap dip stick. If necessary top-up using ISO no.46
hydraulic oil.
3. Check that the electrolyte level in the batteries is
correct. (See Battery Maintenance, Section 4.3)
4. Verify batteries are charged.
5. Check that the A.C. extension cord has been
disconnected from charger.
6. Carefully inspect the entire machine for damage such
as cracked welds or structural members, loose or
missing parts, oil leaks, damaged cables or hoses,
loose connections and tyre damage.
7. Move machine, if necessary, to unobstructed area
where machine can be fully elevated.
8. Check that the ground is capable of supporting the
outrigger loads, and is generally level. Apply
handbrake.
9. Taking each outrigger in turn, pull the locking pin
release lever out while simultaneously lowering the
outrigger leg. Ensure the locking pin snaps into
position in the lower slot.
(See Figure 3-3)
10. Lower all screw jacks until the load is just removed
from the road wheels. Level the machine as necessary
using the bubble level on the chassis to check in both
longitudinal and lateral directions. Retract the jockey
wheel until it is clear of the ground.
11. Turn both Chassis and Platform Emergency Stop
switches ON (rotate clockwise).
12. Turn key switch on Ground Control box to the
CHASSIS position (right-hand position).
13. Using the chassis control switches, fully elevate
booms no 1 and 2.
14. Visually inspect the elevating assembly and cage
mounting/structure, lift cylinders, cables and hoses for
leaks, damage or erratic operation. Check for missing
or loose parts such as nuts, bolts and circlips.
15. Check rotation left and right function.
16. Lower each boom until platform is returned to its rest.
17. Replace module covers.
18. Retract screw jack on one outrigger and check that
warning alarm sounds.
19. Return chassis key switch to OFF (centre) position.
20. Lower jockey wheel until it is in contact with ground.
Raise remaining screw jacks then return each
outrigger leg in turn to vertical position, checking that
locking pin snaps securely into upper slot on the
quadrant.
21. Check tyre pressures and thread depth.
WARNING

3-6 TL33 Work Platform
Operation
Section
3.4
3.4 Operation
NOTE: Understand the functions of all the controls
before operating the machine AND ensure that the Pre-
Operation Inspection (Section 3.3) has been
completed and any deficiencies corrected.
Before Towing, ensure that all booms are properly
stowed and secured and that outriggers are raised
, retracted and locked into position.
Ensure tyres are free from damage, inflated to
correct pressure and have sufficient thread depth.
Ensure breakaway cable is properly attached to
towing vehicle before driving away.
TOWING
1. Adjust Jockey wheel using screw handle until tow hitch
is just above height of tow ball on towing vehicle.
2. Position tow vehicle and fit breakaway cable to a
suitable attachment point on the towing vehicle (not the
tow ball stem or towing pin).
3. Lower tow socket onto hitch using screw handle on
Jockey wheel, until catch snaps into position. Adjust
jockey wheel height until well clear of the ground.
4. Connect electrical lead to tow vehicle socket and check
lighting functions.
NOTE: Exercise caution during brake "Running In"
period (First 850Km or 500 miles). When parking on
hills remember to fully tension handbrake, and in
reverse, compress handbrake spring fully plus double
check when vehicle has moved back. Chock wheels
for safety.
OUTRIGGER DEPLOYMENT
All outriggers MUST be correctly deployed on firm
ground capable of withstanding the loads imposed.
The chassis MUST be correctly levelled before
elevating the platform.
1. Position machine on firm, level ground.
2. Pull out locking handle, lower outrigger until pin locks
into position in the lower slot. Ensure pin is completely
seated in this slot.
3. Repeat for remaining 3 outriggers
4. Screw down all four jacks until they contact firm
surface.
5. Adjust jacks to ensure machine is level.
Check using bubble level located at rear of chassis.
6. Ensure outriggers are taking machine's weight.
Road wheels should be relieved of load, but
remain just in contact with the ground.
7. Raise jockey wheel at tow hitch until it is well
clear of the ground.
Figure 3-3: Releasing Outrigger Lock Pin
WARNING
DANGER
LOCKING
HANDLE
LOCKING
PIN
LOWER
SLOT

TL33 Work Platform 3-7
Operation
SectIon
3.4
ELEVATING PLATFORM
LOOK up and around for obstructions before
performing the lift function.
DO NOT overload the platform
DO NOT operate within 8 metres of any
electrical power cables.
THIS WORK PLATFORM IS NOT INSULATED.
Cordon off the area within the platform's
working area to keep passers-by clear of
boom.
1. Ensure key switch is turned to "Cage" position
and both emergency stop buttons are released
(out).
2. Enter cage through gate and ensure drop bar is in
position.
3. Wear safety helmets/harnesses in accordance
with local requirements. Safety harness
lanyards, not exceeding 1m in length, should be
attached to anchor points in cage floor.
4. Check green "System OK" L.E.D. is illuminated. If not,
and/or audible alarm sounds, check that outriggers are
correctly deployed. Booms will not operate unless this
is done.
5. Select "Boom 1" on function selector switch.
6. Check for overhead obstructions.
7. Squeeze "deadman" control on Joystick and slowly
move Joystick forward to elevate boom. The further
the joystick is moved, the faster the boom will move.
Pressure must applied to the "deadman" at all times
operation is required.
8. Select "Boom 2" or "Rotate" as required and operate as
described above . Note: Move joystick forward to
rotate left , back to rotate right.
9. Before lowering, check under cage floor for
obstructions, operate as described above, moving
joystick back to perform 'lower' function.
10. In an emergency, hit the red "Emergency Stop"
button for instant cut-out of all functions. Twist button
clockwise to release before operating machine again.
11. If the Audible warning alarm sounds, control functions
will cease to operate. This will be due to a loss of
pressure on one or more of the outriggers. Do not
attempt to elevate the booms with the alarm sounding,
unless this action is required to move the boom away
from an obstruction. In this event, movement should
be kept to a minimum.
Turn the cage "on/off" switch to the 'emergency'
position, and hold it in this position while using the
boom controls as normal to descend immediately to
ground level. Do not rotate until close to the ground.
After leaving the cage, check all outriggers and adjust
to ensure each is correctly deployed. Note that during
emergency operation, controls will operate only at a
fixed, slow speed.
When operating this function, extreme care must be
taken to ensure person carrying out the task does
not become trapped by the structure
EMERGENCY LOWERING
1. Should the machine become inoperable when elevated
ask a person on the ground to lower the platform using
the emergency lowering valves.
2. These are red knobs (twist or push type )mounted at
the base of the hydraulic lift cylinders (See Figure 3-4).
Operate the lower boom first by turning slightly in an
pushed) - ensure rate of descent is kept slow and under
control.
Descent can be halted at any time by turning the red
knob clockwise until the valve is closed.
3. Repeat the operation if necessary for the upper boom
when cylinder is in reach of the ground.
4. Tighten valves clockwise before using the machine
again.
WARNING
WARNING

3-8
TL33 Work Platform
Operation
Section
3.4
EMERGENCY ROTATION
The following procedure for rotation of the elevating
assembly in an emergency situation should be carried
out only by a qualified service engineer:
1. Ensure booms are lowered as far as possible using
emergency lower valves.
2. Remove cap on rotation gearbox shaft cover.
3. Apply a 13 mm. socket wrench to shaft and turn to
rotate elevating assembly.
4. Remove wrench.
5. Reinstall protective cap.
CONTROL FROM GROUND LEVEL
1. Ground Controls are fitted at the base of the boom.
These should only be used when no operator is in the
platform (for maintenance/ service purposes), or if the
operator has become incapacitated.
2. Turn key switch to CHASSIS(to the right).
3. Use the appropriate switch to raise/lower Boom 1,
Boom 2 or rotate as required.
AFTER USE EACH DAY
1. Ensure that the platform is fully lowered.
2. Park the machine on level ground, preferably under
cover, secure against vandals, children or unauthorised
operation. Apply handbrake.
3. Turn key switch to OFF and remove key to prevent
unauthorised operation.
4. Recharge batteries in accordance with the instructions
in section 4.3.
Figure 3-4: Emergency Lowering Valves
TURN TYPE
Knob on Emergency
Lowering valve.
Turn
anti-clockwise to
allow oil out of
cylinder full-bore and
lower boom
PUSH TYPE
Knob on Emergency
Lowering valve.
Push anti-clockwise
to allow oil out of
cylinder full-bore and
lower boom

TL33 Work Platform 3-9
Operation
SectIon
3.5
NOTES

4-1
TL33 Work Platform
Maintenance
Section
4.0
4.0 Introduction
This section contains instructions for the maintenance of
the TL33 Series Work Platform. Procedures for scheduled
maintenance and repair/removal are included.
Referring to Section 3 and Section 6will aid in
understanding the operation and function of the various
components and systems of the TL33 Series Work
Platform and help in diagnosing and repair of the machine.
TOOLS REQUIRED
The following is a list of items that are required to perform
certain maintenance & repair procedures.
1 x Multi-meter capable of reading Voltage, Ohms
and Amps.
1 x Pressure Gauge - Range (0 - 1000 P.S.I)
1 x Pressure Gauge - Range (0 - 3000 P.S.I)
We recommend:
1 x 57128-000 Calibrator - A test and analysis
instrument for the D.C. motor Control Unit.
4.1 Preventative Maintenance
(Table 4-1)
The complete inspection consists of periodic visual and
operational checks, together with all necessary minor
adjustments to assure proper performance.
Daily inspection will prevent abnormal wear and prolong
the life of all systems. The inspection and maintenance
schedule is to be performed at regular intervals.
Inspection and maintenance shall be performed by
personnel who are trained and familiar with mechanical
and electrical procedures. Complete descriptions of the
procedures are in the text following the table.
Before performing preventative maintenance
familiarise yourself with the operation of the
machine.
Never perform maintenance on a machine
when it is in the elevated position.
The Preventative Maintenance table has been designed
to be used for machine service and maintenance repair.
Please copy the following page and use this table as
a checklist when inspecting a machine for service.
WARNING

TL33 Work Platform 4-2
Maintenance
SectIon
4.1
4.1 Preventative Maintenance Table Key
Y=Yes/Acceptable
N=No/Not Acceptable
R=Repaired/Acceptable
Preventative Maintenance Report
Date:
Owner:
V.I.N No.: Serial No.:
Serviced By:
Service Interval:
Daily, each shift or every 8 hours
COMPONENT INSPECTION OR SERVICES YN R
Battery System Check electrolyte level
Check battery cable condition
Charge batteries
Hydraulic Oil Check oil level
Hydraulic
System Check for leaks
Emergency
Hydraulic
System
Open the emergency lowering valves
and check for proper operation.
Controller
Control Cable Check switch operation Check the exterior of cable for pinching,
binding or wear.
Tyres / Wheels Check tyre pressures 3.25 bar
Check thread depth
Check for damage
Check/torque nuts 100Nm
Platform Deck
and Handrails Check welds for cracks Check that securing bolts are tightened
Check condition of floor
Check drop bar on cage entrance
Hydraulic
Pump Check for hose fitting leaks
Elevating
Assembly Inspect for structural cracks Check hoses for pinch or rubbing points
Chassis
Assembly Inspect for structural cracks Check hoses for pinch or rubbing points
Entire
Unit Function check Emergency stop switches at control boxes
Perform pre-operation inspection
Check for and repair collision damage
Outriggers Check all screw jacks
Check interlock switch function
Tow hitch Check coupling for function and wear.
Inspect breakaway cable for proper
attachment.
Road Lights Check all trailer lights and connecting
plug
Brake System Apply handbrake & check function
Monthly, every 30 Days or 50 hours
COMPONENT INSPECTION OR SERVICES YN R
Battery System Check specific gravity
Hydraulic System Check hoseconnecxtions
Check for exterior wear
Hydraulic Pump Wipe clean.
Check for leaks at mating surfaces.
Check mounting bolts for proper
torque.
Slew system Grease slew gear.
Check slew motor for leaks and
mounting bolts for proper torque.
Elevating
Assembly Check pivot pins for damage. Check pivot pin retaining rings.
Lift Cylinders Check cylinder rod for wear.
Check pivot pin retaining rings.
Grease all fittings as section 4.4
Entire Unit Lubricate.
Grease all fittings.
Outriggers Lubricate.
Grease all fittings.
Brake System Check brake shoes for wear.
Test auto reverse function
Tow Hitch Grease all fittings as section 4.4
3 Monthly, every 3 months or 80 hours
COMPONENT INSPECTION OR SERVICES YN R
Slew system/
First Post Check torque on all bolts, 15 outer ring and 20 inner ring.Retorque to
120 Nm
6 Monthly, every 6 months or 125 hours
COMPONENT INSPECTION OR SERVICES YN R
Battery System Clean exterior.
Clean terminals.
Slew system Check hardware and fittings for
proper torque.
Elevating
Assembly Check elevating assembly for bending.
Check component mounting for
proper torque.
Check fasteners for proper torque.
Entire Unit Check for corrosion - Remove and
repaint.
Brakes Adjust brake shoes.
Check handbrake and adjust.
Yearly, every 12 months or 250 hours
COMPONENT INSPECTION OR SERVICES YN R
Hydraulic Oil Drain and replace oil.
(ISO No.46)
Axle/ Hubs Repack wheel bearings
Hydraulic
System Change filter