Upright SL30SL, SL26SL Service & Parts Manual
European Specification
SERVICE & PARTS
MANUAL
SL26/30SL
European Specification
Serial Numbers 11200 - current
When contacting UpRight for service or parts
information, be sure to include the MODEL and
SERIAL NUMBERS from the equipment nameplate. Should the nameplate be missing, the
SERIAL NUMBER is also stamped on top of the
chassis above the front axle pivot.
Call Toll Free in U.S.A.
1-800-926-LIFT
Upright, Inc.
1775 Park Street
Selma, California 93662
TEL: 559/891-5200
FAX: 559/891-9012
PARTS: 1-888-UR-PARTS
PARTSFAX: 559/896-9244
P/N 060587-025
B 3/00 .5 K
Stamped
Serial
Number
OW TOUSETHISMANUAL
H
F
ORWARD
This manual is divided into 6 sections. The section
number printed at the top corner of each page can be
used as a quick reference guide.
Special information
!
Indicates the hazard or unsafe practice will
result in severe injury or death.
!
Indicates the hazard or unsafe practice could
result in severe injury or death.
Indicates the hazard or unsafe practice could
result in minor injury or property damage
NOTES: Give helpful information.
DANGER
WARNING
CAUTION
!
!
!!
Introduction &
Specifications
General description and machine
specifications.
Machine Preparation &
Operation
Information on how to operate the work
platform and how to prepare it for operation.
Maintenance
Preventative maintenance and service
information.
1.0
2.0
3.0
ORKSHOPPROCEDURES
W
CAUTION: Detailed descriptions of standard work-
shop 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 personal
injury, or could damage a machine or make it unsafe.
Please understand that these warnings cannot cover
all conceivable ways in which service, whether or not
recommended by UpRight, Inc., might be done, or of
the possible hazardous consequences of each conceivable way, nor could UpRight Inc. investigate all
such ways. Anyone using service procedures or
tools, whether or not recommended by UpRight Inc.,
must satisfy themselves thoroughly that neither personal safety nor machine safety will be jeopardized.
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 the prior written permission of the publisher.
This includes text, figures and table.
Troubleshooting
Causesand solutions to typicalproblems.
Schematics
Schematics and valve block diagram with
description and locationof components.
Illustrated Parts
Breakdown
Complete parts lists with illustrations.
4.0
5.0
6.0
SL26/30SL Work Platform i
OTES
N
F
ORWARD
:
ii SL26/30SL Work Platform
S
ECTION
T
ABLE OF
1
C
ONTENTS
Introduction&Specifications ...........................................................1-1
1.1Introduction..................... 1-1
Purpose .........................1-1
Scope ...........................1-1
S
ECTION
2
1.2 General Description .............. 1-1
Platform .........................1-1
Controller ........................1-1
ElevatingAssembly ................1-1
PowerModule ....................1-1
Control Module ....................1-1
LevelingSystem...................1-1
Chassis..........................1-1
PurposeofEquipment ..............1-1
SpecialLimitations .................1-1
1.3Specifications................... 1-3
MachinePreparation&Operation .......................................................2-1
2.1PreparationforUse............... 2-2
2.2ForkliftingWorkPlatform.......... 2-2
2.3TransportingWorkPlatform........ 2-3
2.4PreparationforShipment.......... 2-3
2.5Storage......................... 2-3
Preservation ......................2-3
Battery ..........................2-3
2.6DesignFeatures ................. 2-3
2.7TheControlsandIndicators........ 2-4
2.8Introduction..................... 2-6
General Functioning ................2-6
Driving ..........................2-6
Driving with the Platform Lowered . . 2-6
Driving with the Platform Elevated . . 2-6
Steering .........................2-6
Leveling .........................2-6
RaisingAndLoweringThePlatform ....2-6
2.9 Safety Rules and Precautions ...... 2-7
2.10Pre-OperationInspection......... 2-7
VisualInspection ..................2-7
SystemFunctionInspection ..........2-8
2.11Operation...................... 2-9
TravelWithPlatformLowered ........2-9
Steering .........................2-9
LevelingThePlatform ..............2-9
Raising and Lowering The Work
Platform .........................2-9
Travel With Work Platform Elevated . . .2-9
EmergencyLowering ..............2-10
AfterUseEachDay ...............2-10
2.12 Brake Release Pump............ 2-10
2.13FoldDownGuardrails........... 2-11
Fold down Procedure ..............2-11
Erection Procedure ................2-11
S
ECTION
3
Maintenance..........................................................................3-1
3.1Introduction..................... 3-1
3.2SpecialTools.................... 3-1
3.3 Preventative Maintenance ......... 3-1
Preventative Maintenance Table Key . . .3-2
Interval ..........................3-2
Preventative Maintenance Report .....3-2
3.4 Blocking Elevating Assembly ...... 3-3
Installation .......................3-3
Removal .........................3-3
3.5BatteryMaintenance.............. 3-3
BatteryInspection&Cleaning ........3-3
BatteryCharging...................3-4
BatterySpecificGravity .............3-4
SL26/30SL Work Platform i
3.6Lubrication...................... 3-4
GreaseFittings....................3-4
LinkageGears ....................3-4
SteeringLinkage ..................3-4
HydraulicPump ...................3-5
HydraulicOilTank&Filter ...........3-5
FluidLevel .................... 3-5
Oil&FilterReplacement.......... 3-5
T
ABLE OF
C
ONTENTS
3.7 Setting Hydraulic Pressures........ 3-6
MainReliefValve.................. 3-6
Counterbalance Valves ............. 3-6
Fore/Aft Tilt Cylinder Relief Valve ..... 3-7
SteeringReliefValve............... 3-7
DriveCrossReliefValve............ 3-7
Brake Pressure Reducing Valve ...... 3-8
3.8SwitchAdjustments .............. 3-8
Proportional Control Adjustment ...... 3-8
AxleCenterSwitch................. 3-9
CushionDownLimitSwitch.......... 3-9
LiftCutoutLimitSwitch ............ 3-10
DownLimitSwitch................ 3-10
TiltSensor...................... 3-10
3.9HydraulicManifold............... 3-11
Removal ....................... 3-11
Disassembly .................... 3-11
Cleaning and Inspection ........... 3-11
Assembly ...................... 3-11
Installation...................... 3-11
3.10HydraulicPump................ 3-13
Removal ....................... 3-13
Installation...................... 3-13
3.11 Hydraulic Brakes, Drive Motors & Hubs
3-13
RearAxle .......................3-13
Removal..................... 3-13
Installation.................... 3-13
FrontAxle .......................3-14
Removal..................... 3-14
Installation.................... 3-14
3.12AxleCylinder.................. 3-15
Removal ........................3-15
Installation.......................3-15
3.13SteeringCylinder............... 3-15
Removal ........................3-15
Disassembly .....................3-15
Cleaning and Inspection ............3-15
AssemblyandInstallation ...........3-15
Adjustment ......................3-16
3.14LiftCylinder................... 3-16
Removal ........................3-16
Disassembly .....................3-17
Cleaning and Inspection ............3-17
Reassembly .....................3-17
Installation.......................3-17
3.15TorqueSpecifications........... 3-18
Fasteners .......................3-18
Hydraulic Components .............3-18
S
ECTION
4
Troubleshooting .......................................................................4-1
S
ECTION
Introduction ...................... 4-1
General Procedure ................ 4-1
Upright Product Support ............ 4-1
5
4.1ElectricalTruthTable,Diesel....... 4-2
4.2HydraulicTruthTable............. 4-4
Schematics ...........................................................................5-1
Introduction ...................... 5-1
5.1ElectricalSchematic,SL26/30SL.... 5-2
S
ECTION
6
5.2HydraulicSchematic,SL26/30SL.... 5-4
IllustratedPartsBreakdown.............................................................6-1
ii SL26/30SL Work Platform
L
IST OF
SECTION 1
Introduction & Specifications
Figure1-1:SL26/30SLWorkPlatform ......1-2
SECTION 2
Machine Preparation & Operation
F
IGURES
Figure2-1:Battery .....................2-2
Figure2-2:EmergencyLoweringValve .....2-2
Figure2-3:TransportingWorkPlatform .....2-2
SECTION 3
Maintenance
Figure3-1:BlockingElevatingAssembly ....3-3
Figure 3-2: Lubrication Points . . . ..........3-4
Figure3-3:HydraulicOilTank&Filter ......3-5
Figure 3-4: Hyd. Manifold Assy, Front View . .3-6
Figure 3-5: Hyd. Manifold Assy, Top View . . . 3-7
Figure3-6:DriveCrossReliefValve .......3-7
Figure3-7:BrakeReleasePump ..........3-8
Figure 3-8: Proportional Controller Adjustment 3-8
Figure 3-9: Plat. Down Relay & Term. Block .3-9
SECTION 5
Schematics
Figure2-4:Controls&Indicators ..........2-5
Figure2-5:BrakeReleasePump .........2-10
Figure2-6:FoldDownGuardrails ........2-11
Figure3-10:AxleCenterSwitch...........3-9
Figure3-11:LimitSwitchLocations .......3-10
Figure3-12:TiltSensorAdjustment.......3-10
Figure 3-13: Hyd. Manifold, Exploded View . 3-12
Figure3-14:TypicalHydraulicPump ......3-13
Figure3-15:RearAxleAssembly.........3-14
Figure3-16:FrontAxleAssembly ........3-14
Figure 3-17: Steering Cylinder Assembly . . . 3-16
Figure 3-18: Lift Cylinder Assembly . ......3-17
Figure 5-1: Terminal Strip & Relay Identification,
Diesel Model ......................5-3
Figure 5-2: Electrical Schematic - Diesel
(064149-080) .....................5-3
SL26/30SL Work Platform I
Figure 5-3: Hydraulic Schematic
(064148-022) .....................5-5
Figure 5-4: Hyd. Manifold, Exploded View . . . 5-5
L
IST OF
SECTION 1
Introduction & Specifications
Table1-1:Specifications ...................................................1-3
SECTION 2
Machine Preparation & Operation
Table2-1:ControlsandIndicators............................................ 2-4
SECTION 3
Maintenance
Table 3-1: Preventative Maintenance Check list ................................. 3-2
Table 3-1: Torque Specifications for Fasteners ................................. 3-18
Table 3-2: Torque Specifications for Hydraulic Components . . .................... 3-18
SECTION 4
Troubleshooting
Table 4-1: Electrical Truth Table - Diesel (064149-079) ........................... 4-2
T
ABLES
Table 4-2: Hydraulic Truth Table (064148-022) .................................. 4-4
SECTION 5
Schematics
Table 5-1: Electrical Schematic Legend: Diesel (064149-079). . .....................5-2
Table 5-2: Hydraulic Schematic Legend (064148-022) ............................5-4
II SL26/30SL Work Platform
SL26/30SL Work Platform 1-1
Section 1
I
NTRODUCTION
& S
PECIFICATIONS
1.1 I
NTRODUCTION
Purpose
The purpose of this service and parts manual is to
provide instructions and illustrations for the operation
and maintenance of an UpRight SL26/30SL Work
Platform manufactured by UpRight, Inc. of Selma,
California.
Scope
The manual includes procedures for proper operation, maintenance, adjustment, and repair of this
product as well as recommended maintenance
schedules and troubleshooting.
1.2 G
ENERAL DESCRIPTION
The SL26/30SL Work Platform consists of the platform, controller, elevating assembly, leveling system,
power module, control module, and chassis
(Figure 1-1).
Platform
The platform has a reinforced wood floor, 43.5 inch
(1.11 m) high guardrails with midrail, 6 inch (152 mm)
toeboards and an entrance gate at the rear of the
platform. The guardrails can be folded down for
access through doors or for shipment, except when
equipped with the optional roll-out deck extension.
Controller
The controller contains the controls to operate the
machine. It should be hung on the front, left, or right
guardrail, but may be hand held if necessary. To
operate the machine, the interlock lever must be
depressed to operate any function. A complete explanation of control functions can be found in Section 2.
Elevating Assembly
The platform is raised and lowered by the elevating
assembly, a two section arm pivoting on a gear, and
powered by a single stage lift cylinder. The hydraulic
pump, driven by the engine, actuates the cylinder.
Solenoid operated valves control raising & lowering.
Power Module
The power module contains the engine, hydraulic
pump, fuel tank, battery, and starter solenoid.
Control Module
The control module contains the hydraulic tank,
hydraulic valve manifold, horn/alarms, volt/hour
meter, electrical terminal strips, and chassis controls.
A complete explanation of the chassis control functions is found in Section 2.
Leveling System
The base of the elevating assembly is mounted on
two pivots. Hydraulic cylinders at the side and rear of
the elevating assembly tilt the elevating assembly
and platform side to side or fore and aft. Instructions
for leveling the platform and elevating assembly are
found in Section 2.
Chassis
The chassis is a structural frame that supports all the
components of the SL26/30SL Work Platform.
Purpose of Equipment
The SL26/30SL Work Platform is designed to elevate
personnel and materials to overhead work areas and
be driven with the platform elevated on firm, level surfaces only.
Note: Travel with the platform raised is limited to
a creep speed range and will only travel if the
platform is less than 8 meters high
Special Limitations
The objective of the SL26/30SL is to provide a
quickly deployable, self-propelled, variable height
work platform for worksite use that can be driven over
rough terrain.
WARNING
!!
DO NOT use the maintenance platform without
guardrails properly assembled and in place with
fasteners properly torqued.
DANGER
!
!
The elevating function shall ONLY be used
when the work platform is level and on a firm
surface. The work platform is NOT intended to
be driven over uneven, rough or soft terrain
when elevated.
1-2 SL26/30SL Work Platform
I
NTRODUCTION
& S
PECIFICATIONS
Section
1.2
Figure 1-1: SL26/30SL Work Platform
1. Platform
2. Controller Assembly
3. Elevating Assembly
4. Power Module
5. Control Module
6. Chassis
7. Leveling System
1
2
3
4
5
6
7
SL26/30SL Work Platform 1-3
I
NTRODUCTION
& S
PECIFICATIONS
Section
1.3
1.3 S
PECIFICATIONS
Table 1-1: Specifications
Specifications are subject to change without notice
Meets or exceeds all applicable National Safety requirements.
ITEM SL26SL SL30SL
Platform Size (Inside Toeboards)
Standard 1,71 m x 3,59 m [67.5 in. x 141.5 in.] 1,71 m x 4,22 m [67.5 in. x 166.5 in.]
Slide Out Deck Extended 1,71 m x 4,61 m [67.5 in. x 181.5 in.] N/A
Max. Platform Capacity
Standard 680 kg [1,500 lbs.] 590 kg [1,300 lbs.]
w/ Extension 680 kg [1,500 lbs.] N/A
On Extension 227 kg [500 lbs.] N/A
Max. No. of occupants
Standard 5 people 5 people
on Extension 2 people N/A
Height
Working Height 9,75 m [32 ft.] 10,97 m [36 ft.]
Max. Platform Height 7,93 m [26 ft.] 9,14 m [30 ft.]
Min. Platform Height 1.5 m [59 in.] 1.5 m [59 in.]
Max. Drive Height 7,93 m [26 ft.] 9,14 m [30 ft.]
Dimensions
Weight Diesel: 3,075 kg [6,780 lbs.] Diesel: 3,216 kg [7,090 lbs.]
Overall Width, Standard 2,13 m [84 in.] 2,13 m [84 in.]
Overall Height 2,6 m [102.5 in.] 2,6 m [102.5 in.]
Overall Length, Standard 3,79 m [149 in.] 4,39 m [173 in.]
Surface Speed
Platform Lowered 0 to 5.0 km/h [0 to 3.1 mph] 0 to 5.0 km/h [0 to 3.1 mph]
Platform Raised 0 to 0.8 km/h [0 to 0.5 mph] 0 to 0.8 km/h [0 to 0.5 mph]
System Voltage 12 Volt DC 12 Volt DC
Battery Charger 40 Amp, 110 Volt, 60 Hz (40 Amp, 220 V, 50 Hz, Optional 40 Amp, 110 Volt, 60 Hz (40 Amp, 220 V, 50 Hz, Optional
Hydraulic Tank Capacity 45.5 l [12 US Gallons] 45.5 l [12 US Gallons]
Maximum Hydraulic System Pressure 172 bar [2500 psi] 172 bar [2500 psi]
Hydraulic Fluid
Normal use, above 32° f [0° c]) ISO #46 ISO #46
Low Temp. use, below 32° f [0° c]) ISO #32 ISO #32
Extreme Temp, below 0° f [-17° c] ISO #15 ISO #15
Lift System One Single Stage Lift Cylinder One Single Stage Lift Cylinders
Lift Speed Raise, 21 sec./Lower, 32 sec. Raise, 24 sec./Lower, 36 sec.
Platform Leveling 13° side to side, 9° Fore and Aft 13° side to side, 9° Fore and Aft
Power Source 20 HP Kubota D905 (Diesel) 20 HP Kubota D905 (Diesel)
Drive Control Proportional Proportional
Control System Joystick Controller with Interlock Lever and Thumb Rocker
Steering, Toggle Selector and Emergency Stop Switches
Joystick Controller with Interlock Lever and Thumb Rocker
Steering, Toggle Selector and Emergency Stop Switches
Horizontal Drive Four Wheel, Hydraulic Motors Four Wheel, Hydraulic Motors
Tires (Standard) 26 x 12.00 - 12 NHs Super Terra-grip with Trac Seal 26 x 12.00 - 12 NHs Super Terra-grip with Trac Seal
Parking Brakes Dual Spring Applied, Hydraulic Release, multi-disc Dual Spring Applied, Hydraulic Release, multi-disc
Turning Radius (inside) 3,96 m [13 ft.] 3,96 m [13 ft.]
Maximum Gradeability 35% [19°] 35% [19°]
Wheel Base 2,54 m [100 in.] 2,54 m [100 in.]
Guardrails 1,11 m [43.5 in.] high, Fold Down with gate. 1,11 m [43.5 in.] high, Fold Down with gate.
Toeboard 152 mm [6 in.] High 152 mm [6 in.] High
Fuel Tank Capacity 45.5 l [12 US Gallons] 45.5 l [12 US Gallons]
1-4 SL26/30SL Work Platform
I
NTRODUCTION
& S
PECIFICATIONS
Section
1.3
N
OTES
:
SL26/30SL Work Platform 2-1
Section 2
M
ACHINE
P
REPARATION
& O
PERATION
All personnel shall carefully read, understand and follow all safety rules, operating instructions
before operating or performing maintenance on any Upright aerial work platform.
NEVER
operate the machine within
ten feet of power lines.
THIS MACHINE IS NOT INSULATED.
NEVER
elevate the platform or drive
elevated on uneven slopes or soft
ground unless the platform is level.
NEVER
sit, stand or climb on guard-
rail or midrail.
Safety Rules
Warning
N
EVER
operate the machine without first surveying the work area for surface hazards such as holes, drop-offs, bumps
and debris.
N
EVER
operate the machine if all guardrails are not properly in place and secured with all fasteners properly torqued.
S
ECURE
and lock gate after mounting platform.
K
EEP
all body parts clear of outriggers when extending or retracting (outrigger equipped machines only).
N
EVER
use ladders or scaffolding on the platform.
N
EVER
attach overhanging loads or increase platform size.
L
OOK
up, down and around for overhead obstructions and electrical conductors.
D
ISTRIBUTE
all loads evenly on the platform. See the back cover for maximum platform load.
N
EVER
use damaged equipment. (Contact UpRight for instructions. See toll-free phone number on back cover.)
N
EVER
change operating or safety systems.
I
NSPECT
the machine thoroughly for cracked welds, loose hardware, hydraulic leaks, damaged control cable, loose wire
connections and wheel bolts.
N
EVER
climb down elevating assembly with the platform elevated.
N
EVER
perform service on machine while platform is elevated without blocking elevating assembly.
N
EVER
recharge battery near sparks or open flame; batteries that are being charged emit highly explosive hydrogen gas.
A
FTER USE
secure the work platform against unauthorized use by turning key switch off and removing key.
N
EVER
replace any component or part with anything other than original UpRight replacement parts without the manu-
facturer's consent.
2-2 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.1
NOTE: Read and familiarize yourself with all oper-
ating instructions before attempting to operate
the SL26/30SL Work Platform.
2.1 P
REPARATION FOR USE
1. Remove the metal banding from the module covers and elevating linkage.
2. Remove the banding from the control console.
3. Remove tie wraps holding guardrail gate.
4. Connect the negative (-) lead to the negative (-)
battery terminals in power module. (Figure 2-1)
5. Close the Emergency Lowering Valve, if necessary. (Figure 2-2)
6. Fill fuel tank.
Figure 2-1: Battery
Figure 2-2: Emergency Lowering Valve
2.2 F
ORKLIFTING WORK PLATFORM
Note: Forklifting is for transporting only.
Forklift from sides of the platform by lifting under the
modules (Figure 2-3).
Figure 2-3: Transporting Work Platform
CAUTION
!!
STAND CLEAR when cutting the metal banding
to avoid being cut if the banding snaps back.
Negative Battery Terminal
WARNING
!
!
See specifications for weight of work platform
and be certain that forklift is of adequate
capacity to lift the platform
Front
Tie Downs
&
Lifting
Forklift
Typical Rear
Lifting Lug
Rear Tiedowns
Lugs
SL26/30SL Work Platform 2-3
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.3
2.3 T
RANSPORTING WORK PLATFORM
1. Maneuver the work platform into transport position and chock wheels.
2. Secure the work platform to the transport vehicle
with chains or straps of adequate load capacity
attached to the chassis tie down/lifting lugs (Figure 2-3).
3. open the emergency lowering valve.
2.4 P
REPARATION FOR SHIPMENT
1. Grease all the grease fittings (see Section 3).
2. Fully lower the platform.
3. Disconnect the battery negative (-) lead from the
battery terminal(s) (Figure 2-1).
4. Band the controller to the front guardrail.
5. Band the elevating linkage to the frame just
behind the front wheels and at the rear wheels
6. Open the Chassis Emergency Lowering Valve.
(Figure 2-2)
2.5 S
TORAGE
No preparation for storage is required when the work
platform is in normal usage. Regular maintenance
procedures should continue to be performed (see
Section 3).
If the work platform is to be placed in long term storage (dead storage), follow the recommended preservation procedures, below.
Preservation
1. Clean painted surfaces. If the paint is damaged,
repaint.
2. Fill the hydraulic tank to operating level, fluid will
be visible at the Sight Gauge. DO NOT fill the
hydraulic tank while the platform is elevated.
Note: DO NOT drain the hydraulic system prior to
long term storage.
3. Coat exposed portions of extended cylinder rods
with a preservative such as multipurpose grease
and wrap with barrier material.
4. Coat all exposed unpainted metal surfaces with
preservative.
5. Service the diesel engine according to the manufacturers recommendations.
Battery
1. Disconnect the battery ground cable and secure
to the chassis.
2. Disconnect the remaining battery lead and
secure to the chassis.
3. Remove the battery and place in alternate service.
2.6 D
ESIGN FEATURES
The SL26/30SL has the following features:
• The drive speed is limited to creep speed when
operating the work platform while platform is elevated.
• The platform descent rate is controlled by an orifice
(fixed speed) and is slowed further by another orifice during the last 304 mm (12 in.) of descent
(cushion speed). The lift cylinder is equipped with
a velocity fuse to prevent descent should the lift
hose rupture.
• The front floating axle locks into position upon ele-
vating the platform.
• The machine will not drive while elevated unless
the front axle is parallel with the rear axle.
• An alarm sounds and the drive and lift coils are de-
energized if the platform should become unlevel
while elevated.
• Parking brakes are automatically engaged when
the Control Lever is released and the machine
comes to a full stop.
• The Controller and chassis controls are equipped
with Emergency Stop Switches for stopping all
powered functions.
• The Interlock Lever must be depressed for the
Controller to function.
• An alarm is provided to signal when the platform is
lowering.
• A lift switch is located in the Control Module on the
Chassis for lifting and lowering the platform from
ground level.
• An Emergency Down Valve is provided in the Con-
trol Module, to lower the platform in the event electrical power is lost.
• Machine will not level above 87 in., interlock height.
• Machine will not travel when elevated above 8 m.
CAUTION
!!
The rear chassis tie down lugs are not to be
used for lifting the work platform.
Overtightening of chains or straps through tie
down lugs may result in damage to work platform.
2-4 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.7
2.7 THE C
ONTROLS AND INDICATORS
The controls and indicators for operation of the SL26/
30SL Work Platform are shown in Figure 2-4. The
name and function of each control and indicator are
listed in Table 2-1. The index numbers in Figure 2-4
correspond to the index numbers in Table 2-1. The
operator shall 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.
Table 2-1: Controls and Indicators
Controller/Platform Chassis
INDEX # NAME FUNCTION INDEX # NAME FUNCTION
1 KEY SWITCH
Turn key fully clockwise to provide power to the Interlock
Switch. Turn the key fully clockwise to start engine.
When released, key goes to RUN to provide power to the
Interlock Switch.
11 HOUR METER Shows hours machine has been powered on.
2
EMERGENCY
STOP SWITCH
Push red button to cut power to all controls (off). Turn
clockwise to provide power (on).
12
CHASSIS
EMERGENCY
STOP SWITCH
Push red button to cut power to all controls (off). Turn
clockwise to provide power (on).
3 JOYSTICK
Move joystick for ward or backwards to control Drive and
Lift Valves proportionally or Down Valve depending on
position of Drive Lift Switch.
13
CHASSIS LIFT
SWITCH
Push switch up to lift the platform and push switch down
to lower the platform.
4
STEERING
SWITCH
Moving the momentary rocker switch Right or Left
steers the work platform in that direction. Although the
Steering Switch is self centering the steering system is
not. The wheels must be steered back to straight.
15
EMERGENCY
LOWERING
VALVE
Push in and turn knob 1/4 turn counterclockwise, the
knob will pop out and the platform will lower. To close,
push in and turn knob 1/4 turn clockwise until detent
engages. The platform cannot be raised until this valve
is closed.
5
DRIVE SPEED/
TORQUE
SELECTOR
SWITCH
Provides two speed/torque ranges, in forward or reverse.
High Speed-low torque and
High Torque-low speed.
17
BRAKE RELEASE
PUMP
Releases the parking brake allowing the machine to be
moved in the event power is lost or for winching onto a
trailer.
6
LEVEL/DRIVE/
LIFT SWITCH
Selecting LEVEL allows the platform to be leveled using
the tilt switches. Selecting DRIVE allows the work
platform to move forward or reverse. Selecting LIFT
allows the work platform to raise or lower.
18 BUBBLE LEVEL
Indicates platform is level when bubble is within the
circle.
7
SIDE/SIDE TILT
SWITCH
Pushing the switch either right or left tilts the platform in
that direction.
19
CHASSIS KEY
SWITCH
Switches lift control from platform to chassis.
8
FORE/AFT
SWITCH
Pushing the switch either forward or rearward tilts the
platform in that direction.
20 LEVEL SENSOR Stops machine operation when out of level
9
INTERLOCK
LEVER
SWITCH
Provides power to the Controller powered functions, only
when depressed, preventing accidental activation of the
Controller.
10
GLOW PLUG
BUTTON (Diesel
models only)
When engine is cold, depress & hold the Glow Plug
button for 6 (six) seconds prior to starting engine.
SL26/30SL Work Platform 2-5
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.7
Figure 2-4: Controls & Indicators
6
7
8
4
9
3
5
1
2
12
20
11
13
9
18
17
15
2-6 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.8
2.8 I
NTRODUCTION
General Functioning
The engine directly drives a hydraulic pump. The
pump supplies oil under pressure to operate all the
work platform functions. The oil flow is directed to the
different functions by electrically activated solenoid
valves.
Driving
With the Controller Key Switch ON, and the engine
running, both chassis and controller Emergency Stop
Switches ON, the Interlock Lever depressed, and the
Drive/Lift Switch on DRIVE, the machine will drive
forward or reverse at a speed proportional to the
angle the control lever is pushed or pulled.
Driving with the Platform Lowered
Selecting HIGH SPEED with the Drive Speed Switch
and moving the Control Lever forward or reverse with
the platform fully lowered will energize the cutout
relay thru the Platform Down Relay contacts, the
Series/Parallel Coils, the Proportional Coil and the
Forward or Reverse Coil to allow oil to flow into the
Parking Brake (releasing the Brake) and serially
through the Hydraulic Motors. The Proportional Valve
closes or opens in proportion to the movement of the
Control Lever (from center). As the Proportional
Valve closes, more oil is allowed to flow to the Forward or Reverse Valve increasing drive speed.
Selecting HIGH TORQUE (low speed) with the Drive
Speed Switch the Series/Parallel Valves are not
energized, allowing the oil to divide through the
Hydraulic Motors producing the high torque/low drive
speed.
Driving with the Platform Elevated
Raising the platform (see RAISING AND LOWERING
THE PLATFORM, below) opens the Platform Down
Switch which cuts power to the Platform Down Relay.
This energizes the cutout relay thru the tilt sensor
and prevents the axle float valve solenoid from energizing, locking the axle in place. Also de-energized
are the Series/Parallel coils and the controller high
speed circuit. When raised, the platform will only
drive at low speed (motors in parallel) and then only
if the front axle parallel with the rear axle and the
platform is level.
Steering
On the top of the Control Lever is a momentary
rocker switch for steering the machine left and right.
Pressing the right or left side of the rocker switch will
energize the Steering Coils and allow oil to flow
through the Steering Valve to the Steering Cylinder.
Releasing the rocker switch de-energizes the Steering Coils and holds the Steering Cylinder in position.
The Steering Cylinder will not automatically
return to center. The Steering Switch must be
activated to change the wheels direction.
Leveling
With the controller key switch ON (and the engine
running), both chassis and controller emergency stop
switches ON, and the Level/Drive/Lift switch on
LEVEL, the machine can be tilted right or left with the
side/side switch forward and backward with the fore/
aft switch to allow centering of the platform bubble
indicator. The side/side switch and the fore/aft switch
energize the steering bypass coil, to direct oil to the
tilt valves, and the tilt valves directing oil to the right/
left tilt cylinder and fore/aft tilt cylinder, respectively.
Raising And Lowering The Platform
With the Controller Key Switch ON (and the engine
running), both chassis and controller Emergency
Stop Switches ON, the Interlock Lever depressed,
and the Drive/Lift Switch on LIFT, the machine will
elevate at a speed proportional to the angle the Control Lever is pushed forward.
Pushing forward on the Control Lever energizes the
Cutout Relay thru the tilt sensor, Proportional Coil,
Up Coil and accelerator or throttle relay to increase
the engine speed. The greater the angle (from center) of the Control Lever the more the Proportional
Valve closes. As the Proportional Valve closes more
oil is allowed to flow through the Lift Valve to the Lift
Cylinder increasing lift speed.
Lowering the platform electrically energizes the
Down Alarm and the Down Coil. This allows the oil to
flow out of the Lift Cylinder through an orifice, which
controls the rate of descent, then back to tank. During the last 304 mm (12 in.) of lowering the Cushion
Down Valve is energized forcing the oil thru another
orifice slowing the platform rate of descent. Lowering
the platform manually with the Emergency Down
Valve allows the oil to flow out of the Lift Cylinder in
the same manner but there is no Down Alarm.
SL26/30SL Work Platform 2-7
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.9
2.9 S
AFETY RULES AND PRECAUTIONS
Always observe the following safety rules and
precautions when using the SL26/30SL Work
Platform:
NEVER operate the machine within ten feet of power
lines (THIS MACHINE IS NOT INSULATED).
NEVER elevate the platform or drive the machine
while elevated unless the machine is on a firm, level
surface.
NEVER sit, stand or climb on guardrail or midrail.
NEVER operate the machine without first surveying
the work area for surface hazards such as holes,
drop-offs, bumps and debris.
NEVER operate the machine if all guardrails are not
properly in place and secured with all fasteners properly torqued.
SECURE gate across entrance after mounting the
platform.
NEVER use ladders or scaffolding on the platform.
NEVER attach overhanging loads or increase the
size of the platform.
LOOK up, down and around for overhead obstruc-
tions and electrical conductors.
CHECK all four tires for correct inflation, 3.4 bar (50
psi).
DISTRIBUTE all loads evenly on the platform. (For
maximum platform load, refer to Table 1-1).
NEVER use damaged equipment. (Contact UpRight
for instructions.)
NEVER change operating or safety systems.
INSPECT the machine thoroughly for cracked welds,
loose hardware, hydraulic leaks, damaged control
cable, loose wire connections and tire damage.
NEVER climb down elevating assembly with the platform elevated.
NEVER perform service on machine while platform is
elevated without blocking elevating assembly.
NEVER recharge battery near sparks or open flame;
battery emits highly explosive hydrogen gas when
being charged.
SECURE the work platform against unauthorized use
by turning the key switch off and removing the key
from the key switch when leaving the machine unattended.
NEVER replace any component or part with anything
other than original UpRight replacement parts without the manufacturers consent.
2.10 PRE-O
PERATION INSPECTION
Note: Carefully read, understand and follow all
safety rules, operating instructions, labels and
the Scaffold Industry Association’s MANUAL
OF RESPONSIBILITIES. Perform the following
steps each day before use.
Visual Inspection
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 (see Section 3.6). Oil should
be visible in the sight gauge. Add ISO #46
hydraulic oil, if necessary.
3. Check that the fluid level in the battery is correct
(see Section 3.5).
4. Check the engine oil level and fuel level.
5. Carefully inspect the entire work platform for
damage such as cracked welds or structural
members, loose or missing parts, oil leaks, damaged cables or hoses, loose connections and tire
damage.
6. Check that all guardrails are securely in place
with all fasteners properly torqued.
7. Check tire pressure; 3.4 bar (50 psi).
8. Turn the Chassis Emergency Stop Switch to the
ON position. Turn the red knob clockwise.
9. Diesel Model: While the engine is cool, check
the engine coolant level.
WARNING
!
!
DO NOT perform service on work platform with
the platform elevated unless the elevating
assembly is properly blocked.
WARNING
!!
DO NOT check coolant when engine or radiator
is hot, hot coolant can cause severe burns.
2-8 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.10
System Function Inspection
1. Unhook Controller from front guardrail. Firmly
grasp Controller hanger in such a manner that
the Interlock Lever can be depressed, while performing the following checks from the ground.
2. Turn the Emergency Stop Button clockwise or
pull up to the ON position.
3. Turn Controller Key Switch fully clockwise to start
the engine, releasing the key once the engine
starts.
Note: If the engine is cold, depress the glow plug
button for 6 seconds prior to starting to engage
the glow plugs.
4. Position Drive/Lift Switch to DRIVE position.
5. With the Speed Range Switch first in HIGH
TORQUE, and then in HIGH SPEED, depress the
Interlock Lever and slowly push the Control Lever
to FORWARD, and then REVERSE positions to
check for speed and directional control. The farther you push or pull the Control Lever, the faster
the machine will travel.
6. Push Steering Switch RIGHT, then LEFT to
check for steering control.
7. Position Level/Drive/Lift Switch to LEVEL. Actu-
ate the fore/aft and side/side switches to verify
that they are functioning properly. Use the side/
side switch and tilt the platform to one side.
8. Rehook controller on front guardrail.
9. Push Chassis Lift Switch to UP position and elevate platform. The platform should only elevate to
the interlock height, about 2.44 m (8 ft.) above the
ground, and the tilt alarm should sound. If the
platform continues to elevate and/or there is no
alarm, STOP and remove the machine from ser-
vice until it is repaired.
10. Lower the platform with the chassis lift switch.
11. Enter the platform. Using the bubble level as a
guide, level the platform with the side/side and
fore/aft switches. Dismount platform.
12. Fully elevate platform using chassis lift switch.
13. Visually inspect the elevating assembly, lift cylinder, cables and hoses for damage or erratic operation. Check for missing or loose parts.
14. Lower the platform partially by pushing Chassis
Lift Switch to DOWN, and check operation of the
audible lowering alarm.
15. Open the Chassis Emergency Lowering Valve,
push in and turn counterclockwise, to check for
proper operation. Once the platform is fully lowered, close the valve, push in and turn clockwise
until the detent engages.
16. Close and secure module covers.
17. Turn the controller key switch counterclockwise to
OFF and push the emergency stop switch button
to OFF.
WARNING
!!
STAND CLEAR of the work platform while performing the following checks.
Before operating the work platform, survey the
work area for surface hazards such as holes,
drop-offs, bumps and debris.
Check in ALL directions, including above the
work platform, for obstructions and electrical
conductors.
Protect control console cable from possible
damage while performing checks.
WARNING
!
!
LOOK up and around for obstructions prior to
operating the lift function.
DO NOT operate the work platform within 10
feet of any electrical power lines. THIS
MACHINE IS NOT INSULATED.
DO NOT elevate the platform unless the work
platform is on firm, level ground.
DO NOT enter the elevating assembly while the
platform is elevated.
SL26/30SL Work Platform 2-9
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.11
2.11 O
PERATION
Note: Before operating work platform, ensure
that pre-operation has been completed, any
deficiencies have been corrected and the operator has been thoroughly trained on this
machine.
Trav el With Pla tfor m Lowe re d
1. Verify Chassis Emergency Stop Switch is in the
ON position, turn clockwise or pull up on the button.
2. After mounting platform, close and latch gate.
Check that guardrails are in position and properly
assembled with fasteners properly torqued.
3. Check that route is clear of persons, obstructions,
holes and drop-offs, and is capable of supporting
the wheel loads.
4. Check clearances above, below and to the sides
of the platform.
5. Turn Controller Emergency Stop Button clockwise or pull up to the ON position.
6. Turn Controller Key Switch fully clockwise to start
the engine, releasing the key once the engine
starts.
Note: If the engine is cold, depress the glow plug
button for 6 seconds prior to starting to engage
the glow plugs.
7. Set the Level/Drive/Lift Switch to the DRIVE position and the Drive/Lift Speed Range to HIGH
TORQUE.
8. Grasp the Control Lever so the Interlock Lever is
depressed (releasing the Interlock Lever cuts the
power to Controller). Slowly push or pull the Control Lever to FORWARD or REVERSE to travel in
the desired direction. The farther you push or pull
the Control Lever from center, the faster the
machine will travel.
9. While moving, push the Drive/Lift Speed Range
Switch to HIGH SPEED for travel on level surfaces or to HIGH TORQUE for climbing grades or
traveling in confined areas.
Steering
1. Push the Steering Switch RIGHT or LEFT to turn
the wheels. Observe the tires while maneuvering
to ensure proper direction.
Note: Steering is not self-centering. Wheels must
be returned to the straight ahead position by
operating the Steering Switch.
Leveling The Platform
Turn Level/Drive/Lift switch to LEVEL. Center bubble
in bubble level using fore/aft and left/right switches.
To level the platform, it may be necessary to elevate
the platform slightly.
Raising and Lowering The Work
Platform
1. Position the Drive/Lift Switch to LIFT.
2. While depressing the Interlock Lever, push the
Control Lever slowly to UP to raise the platform.
Pushing the Control Lever farther increases the
lift speed. If the platform does not elevate above
the interlock height, about 2.44 m (8 ft.), fully
lower platform and re-level.
3. When the work task is completed, position the
Level/Drive/Lift Switch to LIFT and lower the plat-
form by pulling back on the Control Lever until the
platform is fully lowered.
Travel With Work Platform Elevated
Note: The work platform will travel at reduced
speed when in the elevated position. Elevated
drive can be obtained only if both axles are parallel to each other.
1. Check that the route is clear of persons, obstructions, holes and drop-offs and is capable of supporting the wheel loads.
2. Check clearances above, below and to the sides
of platform.
3. Position the Drive/Lift Switch to the DRIVE posi-
tion.
WARNING
!
!
LOOK up and around for obstructions before
performing the lift function.
DO NOT elevate the platform unless the work
platform is on a firm, level surface.
DO NOT operate the work platform within 10
feet of any electrical lines. THIS MACHINE IS
NOT INSULATED.
NEVER enter the Elevating Assembly while the
platform is elevated.
WARNING
!
!
Travel with platform elevated ONLY on firm,
level surfaces.
2-10 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.12
4. Push the Control Lever to FORWARD or
REVERSE for the desired direction of travel. If
the machine quits driving and the tilt alarm
sounds, immediately lower and re-level the platform before attempting to elevate again.
Emergency Lowering
Note: The Emergency Lowering Valve is located
on the left hand side of the chassis through the
cutout in the control module cover.
1. Open the Emergency Lowering Valve by pushing
in and turning approximately 1/4 turn, the knob
will pop out disengaging detent (Figure 2-4).
2. Once the platform is fully lowered, be certain that
Emergency Lowering Valve is closed again. The
platform will not elevate if the Emergency Lowering Valve has not been closed.
3. To close the Emergency Lowering Valve, push
the knob in and turn approximately 1/4 turn clockwise until the detent engages.
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
unauthorized operation.
3. Turn the Key Switch to OFF and remove the key
to prevent unauthorized operation.
2.12 B
RAKE RELEASE PUMP
(F
IGURE
2-5)
Perform the following only when the machine will not
operate under it’s own power and it is necessary to
move the machine or when towing the machine up a
grade or onto a trailer to transport.
1. Close the needle valve by turning the knob clockwise.
2. Pump the Brake Release Pump until the Parking
Brake Cylinder Rod clears the wheel rotor.
3. The machine will now roll when pushed or pulled.
4. Be sure to open needle valve and verify that the
cylinder rod has extended before the machine is
operated.
Figure 2-5: Brake Release Pump
CAUTION
!!
Be careful not to over-pump the brake release
pump as damage to the brakes may result.
WARNING
!!
Never operate work platform with the Parking
Brake inoperative. Serious injury or damage
could result.
Never tow faster than .3 m/sec. (1 ft./sec.).
Pump
Needle Valve
SL26/30SL Work Platform 2-11
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.13
2.13 F
OLD DOWN GUARDRAILS
(F
IGURE
2-6)
This procedure is only for passing through doorways.
Guardrails must be returned to proper position before
using machine.
Fold down Procedure
Note: When performing the following procedures
retain all fasteners.
1. Place Controller on platform deck.
2. Starting at the front of the platform, remove nuts,
bolts and washers from the top of the front guardrail. Fold the front guardrail down onto the platform.
3. Close and latch gate.
4. Remove nuts, bolts and washers from the top of
the rear guardrail. Fold the rear guardrail down
onto the platform being careful to keep latched at
all times.
5. Remove nuts, bolts and washers from the top of
the side guardrails. Lift up and fold one side
guardrail in so it rests on the deck. Repeat with
other side guardrails.
Erection Procedure
1. Raise side guardrails, making sure each is
pushed down to secure the guardrail in the vertical position.
2. Install bolts, washers and nuts between the side
guardrails, tighten securely.
3. Raise rear guardrail assembly, aligning holes and
install bolts, washers and nuts. Tighten securely.
Figure 2-6: Fold Down Guardrails
DANGER
!
!
Before entering platform, guardrails must be
securely fastened in their proper position.
2-12 SL26/30SL Work Platform
M
ACHINE
P
REPARATION
& O
PERATION
Section
2.13
N
OTES
:
SL26/30SL Work Platform 3-1
Section 3
M
AINTENANCE
3.1 I
NTRODUCTION
This section contains instructions for the maintenance of the SL26/30SL Work Platform. Procedures
for the operation inspection, adjustment, scheduled
maintenance, and repair/removal are included.
Referring to Section 2 will aid in understanding the
operation and function of the various components
and systems of the SL26/30SL work platform, and
help in diagnosing and repair of the machine.
Refer to “Preventative Maintenance Check list” on
page -2 for recommended maintenance intervals.
Note: Unless otherwise specified, torque all fit-
tings according to “Torque Specifications for
Fasteners” on page 3-18, and “Torque Specifications for Hydraulic Components” on
page 3-18.
3.2 S
PECIAL TOOLS
The following is a list of special tools which may be
required to perform certain maintenance procedures
on the work platform.
• 0-600 PSI (0-41 bar) Hydraulic Pressure Gauge
(p/n 014124-006)
• 0-3000 PSI (0-207) Hydraulic Pressure Gauge
(p/n 014124-030)
• Inclinometer (p/n 010119-000)
• Tilt Sensor Adjustment Tool (p/n 030622-000)
• Quick Disconnect Gauge Port (p/n 063965-002)
3.3 P
REVENTATIVE MAINTENANCE
(T
ABLE
3-1)
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.
The preventative maintenance table has been
designed to be used primarily for machine service
and maintenance repair. Please photocopy the following page and use this table as a checklist when
inspecting the machine for service.
WARNING
!!
Be sure to read, understand and follow all information in the Operation Section of this manual
before attempting to operate or perform service
on any SL26/30SL work platform.
WARNING
!
!
Before performing preventative maintenance,
familiarize yourself with the operation of the
machine.
Always block the elevating assembly whenever
it is necessary to enter the scissor assembly to
perform maintenance while the platform is elevated (Figure 3-1).
3-2 SL26/30SL Work Platform
M
AINTENANCE
Section
3.3
Preventative Maintenance Table Key
Interval
Daily=each shift or every day
50h/30d=every 50 hours or 30 days
250h/6m=every 250 hours or 6 months
1000h/2y=every 1000 hours or 2 years
Y=Yes/Acceptable N=No/Not Acceptable
R=Repaired/Acceptable
Preventative Maintenance Report
Date: ___________________________________
Owner: _________________________________
Model No: _______________________________
Serial No: _______________________________
Serviced By: _____________________________
Service Interval: __________________________
Table 3-1: Preventative Maintenance Check list
COMPONE NT INSPECTION OR SERVICES INTERVAL Y N R
Battery
System
Check electrolyte level Daily
Check specific gravity 6m
Clean exterior 6m
Check battery cable condition Daily
Clean terminals 6m
Engine Oil
Check level and condition Daily
Check for leaks Daily
Change oil filter 30d
Engine Fuel
System
Check fuel level Daily
Check for leaks Daily
Replace fuel filter 6m
Check air cleaner Daily
Engine
Coolant
Check coolant level (with engine cold) Daily
Replace coolant 3m
Hydraulic Oil
Check oil level Daily
Change filter 6m
Drain and replace oil 2y
Hydraulic
System
Check for leaks Daily
Check hose connections 30d
Check hoses for exterior wear 30d
Emergency
Hydraulic
System
Operate the emergency lowering valve and
check for serviceability
Daily
Controller Check switch operation Daily
Control Cable
Check the exterior of the cabl e for pinching,
binding or wear
Daily
Platform Deck
and Rails
Check fasteners for proper torque Daily
Check welds for cracks Daily
Check condition of deck Daily
Tires
Check for damage Daily
Check lug nuts (torque to 90 ft. lbs.) 30d
Hydraulic
Pump
Wipe clean 30d
Check for leaks at mating surfaces 30d
Check for hose fitting leaks Daily
Check mounting bolts for proper torque 30d
Drive Motors Check for operation and leaks Daily
Steering
System
Check hardware & fittings for proper torque 6m
Grease pivot pins 30d
Oil king pins 30d
Check steering cylinder for leaks 30d
Elevating
Assembly
Inspect for structural cracks Daily
Check pivot points for wear 30d
Check mounting pin pivot bolts for proper
torque
30d
Check linkage gear for wear. 6m
Check elevating arms for bending 6m
Grease linkage pins 30d
Grease linkage gear 30d
Chassis
Check hoses for pinch or rubbing points Daily
Check component mounting for proper
torque
6m
Check welds for cracks Daily
Lift Cylinder
Check the cylinder rod for wear 30d
Check mounting pin pivot bolts for proper
torque
30d
Check seals for leaks 30d
Inspect pivot points for wear 30d
Check fittings for proper torque 30d
Fore/Aft
Cylinder &
Side/Side
Cylinder
Check the cylinder rod for wear. 30d
Check mounting pin pivot bolts for proper
torque
30d
Check seals for leaks 30d
Inspect pivot points for wear. 30d
Check fittings for proper torque 30d
Axle Cylinder
Check the cylinder rod for wear. 30d
Check mounting pin pivot bolts for proper
torque
30d
Check seals for leaks 30d
Inspect pivot points for wear 30d
Check fittings for proper torque 30d
Entire Unit
Check for and repair collision damage Daily
Check fasteners for proper torque 3m
Check for corrosion-remove and repaint 6m
Lubricate 30d
Labels
Check for peeling, missing, or unreadable
labels & replace
Daily
Bubble Level
Check bubble level and target ring for
damage
Daily
Wheel
Bearings
Check wheel assembly for play 30d
Repack wheel bearings (replace wheel
bearings and seals at 2000 hours).
2y
COMPONENT INSPECTION OR SERVICES IN TERVAL Y N R
SL26/30SL Work Platform 3-3
M
AINTENANCE
Section
3.4
3.4 B
LOCKING ELEVATING ASSEMBLY
(F
IGURE
3-1)
Installation
1. Park the work platform on firm, level ground and
leave the engine running.
2. Open control module cover.
3. Turn Chassis Emergency Stop Button clockwise
to the ON position.
4. Position Chassis Lift/Lower to UP and elevate
platform approximately 305 mm (12 inches).
5. Place a jackstand with a minimum rating of 1814
kg (4000 lbs.) between the lower mast and chas-
sis, just behind the front axle.
6. Push Chassis Lift Switch to DOWN position and
gradually lower platform until jackstand is
secured tightly between lower mast and Chassis.
Figure 3-1: Blocking Elevating Assembly
Removal
1. Push Chassis Lift Switch to UP position and gradually raise platform until jackstand can be
removed.
2. Remove jackstand.
3. Push Chassis Lift Switch to DOWN position and
completely lower platform.
3.5 B
ATTERY MAINTENANCE
Battery Inspection & Cleaning
Check battery fluid level daily, especially if work platform is being used in a warm, dry climate. If required,
add distilled water ONLY. Use of tap water with high
mineral content will shorten battery life.
The battery and cables should be inspected regularly
for signs of cracks in the case, electrolyte leakage
and corrosion of the terminals. Inspect cables for
worn spots or breaks in the insulation and for broken
cable terminals.
Clean the battery when it shows signs of corrosion at
the terminals or when electrolyte has overflowed during charging. Use a baking soda solution to clean the
battery, taking care not to get the solution inside the
cells. Rinse thoroughly with clean water. Clean battery and cable contact surfaces to a bright metal finish whenever a cable is removed.
CAUTION
!!
DO NOT support or raise the front of the platform during any maintenance operation as this
may result in damage to the tension members.
WARNING
!!
BEFORE performing, maintenance on work
platform, while elevated, ensure that elevating
assembly is properly supported.
DO NOT stand in elevating assembly area while
installing or removing jackstand.
WARNING
!
!
Hazard of explosive gas mixture. Keep sparks,
flame, and smoking material away from batteries.
Always wear safety glasses when working with
batteries.
Battery fluid is highly corrosive. Thoroughly
rinse away any spilled fluid with clean water.
3-4 SL26/30SL Work Platform
M
AINTENANCE
Section
3.6
Battery Charging
The battery is charged by the alternator whenever
the engine is running and should not require any
other charging. If the machine has not been in service or if for some other reason the battery has been
discharged, perform the following:
Check the battery fluid level. If the electrolyte level is
lower than 10 mm (3/8 in.) above the plates, add
clean, distilled water only.
Battery Specific Gravity
After charging, if necessary, the specific gravity of all
cells should be checked with a hydrometer. The temperature corrected specific gravity should be 1.260. If
the battery contains any cells with corrected readings
below 1.230, the battery should be replaced.
Do not check the specific gravity in a cell to which
water has just been added. If there is not enough
electrolyte in a fully charged cell to obtain a sample
for the hydrometer, add water and continue charging
for 1 to 2 hours to adequately mix the water and electrolyte.
3.6 L
UBRICATION
Refer to Table 3-1 for lubrication intervals and
Figure 3-2 for location of items that require lubrication service. Refer to the appropriate sections for
lubrication information on the hydraulic tank and filter.
Figure 3-2: Lubrication Points
Grease Fittings
Wipe each grease fitting before and after greasing.
Using multipurpose grease in a grease gun, pump
the grease into the fitting until grease just begins to
appear at the edges of the pivot, wipe off any excess
grease.
Linkage Gears
1. Raise platform fully.
2. Using another work platform or ladder, get up
high enough to comfortably reach gears.
3. Use a long handled brush to apply multipurpose
grease to the face of the gears.
4. Lower the platform after greasing.
Steering Linkage
Apply one or two drops of motor oil to each pivot and
king pin bearing.
WARNING
!!
Charge the battery only in a well ventilated
area.
Do not charge the battery when the work platform is in an area containing sparks or flames.
Always follow the charger manufacturer instructions.
Never disconnect the cables from the batteries
when the charger is operating.
CAUTION
!!
Do not use hands to apply grease or allow any
body part to enter the elevating assembly.
1. Grease Fittings
2. Linkage Gears
3. Steering Linkage
SL26/30SL Work Platform 3-5
M
AINTENANCE
Section
3.6
Hydraulic Pump
Remove the capscrews that mount the pump to the
engine. Remove the pump from the engine and apply
high pressure molybdenum grease to the splines.
Re-install the pump and secure with the capscrews.
Hydraulic Oil Tank & Filter
(Figure 3-3)
Fluid Level
With the platform fully lowered, the oil should be visible in the sight gauge. If the oil is NOT visible, fill the
tank until the oil can be seen. DO NOT fill above the
sight gauge or when the platform is elevated.
Oil & Filter Replacement
1. Operate the work platform for five minutes to
warm up the oil. To change filter only, go to step
5.
2. Provide a suitable container to catch the drained
oil. The hydraulic tank has an oil capacity of 45.5 l
(12 US Gallons).
3. Remove the drain plug and allow all oil to drain
into the container, be sure to dispose of oil properly.
4. Reinstall the drain plug.
5. Unscrew the filter top from the filter body.
6. Lift the filter element from the filter body.
7. Remove filter cup and clean cavity, reinstall cup.
8. Insert the replacement filter into the filter body
and press into position.
9. Fill the hydraulic oil tank to the level of the Sight
Gauge with ISO #46 (see Table 1-1) hydraulic oil
by pouring the oil into the top of the filter. Since
the oil is being filtered as it is going into the tank,
it will take a while to fill the tank.
Figure 3-3: Hydraulic Oil Tank & Filter
CAUTION
!!
The hydraulic oil may be hot enough to cause
burns. Wear safety gloves and safety glasses
when handling hot oil.
1
2
3
1. Drain Plug (under tank)
2. Filter Housing
3. Sight Gauge
3-6 SL26/30SL Work Platform
M
AINTENANCE
Section
3.7
3.7 S
ETTING HYDRAULIC PRESSURES
Referring to Figure 3-13 along with the other Figures
will aid in the following procedures.
Note: Check the hydraulic pressures whenever
the pump, manifold, or relief valve(s) have been
serviced or replaced.
Main Relief Valve (Figure 3-4)
1. Operate the hydraulic system for five minutes.
2. Remove the gauge port plug (Figure 3-5) and
install a quick disconnect gauge assembly.
3. Remove the plug in the end of the main relief
valve to expose the adjusting screw.
4. Remove the hex nut holding the lift coil onto the
lift valves and remove coil.
5. With the engine running, use the chassis lift
switch to elevate the platform, hold until the system bypasses (approximately 2 seconds).
6. While holding the chassis lift switch in the UP
position, set the pressure to 172 bar (2500 psi)
maximum by slowly turning the adjusting screw,
clockwise increases pressure.
7. Reinstall the coil on the lift valve.
8. Remove the pressure gauge and reinstall all
plugs.
Figure 3-4: Hydraulic Manifold Assembly, Front View
Counterbalance Valves (Figure 3-4)
1. Operate the hydraulic system for five minutes to
warm the oil.
2. Remove the quick disconnect plug (Figure 3-5)
and install a 0-41 bar (0-600 psi) pressure gauge
assembly.
3. Exchange the top Counterbalance Valve with the
Main Relief Valve.
4. Remove the plug from the end of the Counterbalance Valve to expose the adjusting screw.
5. Remove the hex nut holding the lift coil onto the
lift valve and remove the coils.
6. With the engine running, use the chassis lift
switch to elevate the platform, hold until the system bypasses (approximately 2 seconds).
7. While holding the chassis lift switch in the UP
position, set the pressure to 34.5 bar (500 psi)
maximum by slowly turning the adjusting screw,
clockwise increases pressure.
8. Exchange the top Counterbalance Valve with the
bottom Counterbalance Valve and repeat the procedure.
9. Be sure to reinstall the valves to their original
locations and replace all plugs when finished setting pressures.
WARNING
!!
The hydraulic oil may be of sufficient temperature to cause burns. Wear safety gloves and
safety glasses when handling hot oil.
The oil in the hydraulic system is under very
high pressure which can easily cause severe
cuts. Obtain medical assistance immediately if
cut by hydraulic oil.
1
2
3
4
1. Main Relief Valve
2. Counterbalance
Valves
3. Lift Coil
4. Steering Relief
Valve
5. Quick Disconnect
5
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