Name: Upright SL20 Series
Brand: Upright
Rating: 5 (1 reviews)

Default Chapter5

Table of Contents5

Introduction11

Maintenance23

Introduction23
- General Procedures23
- Terminology23
Date Code Identification on Hoses23
Special Tools24
Deutsch Connectors24
Figure 3-1: Deutsch Connector Kit24
Figure 3-2: Plugs and Receptacles, Deutsch Connectors24
- Crimping25
- Female Connector (Receptacle)25
- Figure 3-3: Locking Finger, Deutsch Connector25
- Figure 3-4: Heavy Duty Deutsch Connector25
- Male Connector (Plug)25
- Releasing Locking Fingers25
- Removing Contact from Heavy Duty Plug25
Blocking Elevating Assembly26
- Brace Installation26
- Brace Removal26
Battery Maintenance26
- Battery Inspection and Cleaning26
- Figure 3-5: Blocking the Elevating Assembly26
- Battery Charging27
- Figure 3-6: Batteries and Charger27
Switch Adjustments28
- Figure 3-7: Proximity Switch28
- Figure 3-9: PQ Control Handle28
- PQ Control Handle28
- Proximity28
- Tilt Sensor28
Motor Controller and I/O Board Dip Switch Settings29
- Controller29
- Figure 3-10: Controller29
- Figure 3-11: I/O Board29
- I/O Board29
Lubrication30
Hydraulic Oil Tank and Filter30
- Figure 3-12: Hydraulic Oil Tank and Filter30
- Oil and Filter Replacement30
Setting Hydraulic Pressures31
- Main Relief Valve31
- Lift Relief Valve32
- Overcenter Valve32
- Steering Relief Valve32
Hydraulic Manifold34
- Assembly34
- Cleaning and Inspection34
- Disassembly34
- Installation34
- Removal34
- Figure 3-14: Hydraulic Manifold, Exploded View35
Hydraulic Power Unit36
Figure 3-15: Hydraulic Power Unit36
Figure 3-16: Hydraulic Drive Motor36
- Installation37
- Removal37
Wheel Bearings37
Figure 3-17: Wheel Bearings37
- Installation39
- Removal39
Brake Cylinder39
- Removal40
Steering Cylinder40
- Cleaning and Inspection40
- Disassembly40
- Assembly and Installation41
- Figure 3-20: Steering Cylinder Assembly41
- Installation41
- Figure 3-21: Lift Cylinder Installation and Assembly43
- Assembly44
- Cleaning and Inspection44
- Depression Mechanism Cylinder44
- Disassembly44
- Figure 3-22: Depression Mechanism Cylinder Installation44
- Figure 3-23: Depression Mechanism Assembly44
- Removal44
- Adjustable Compression Tube45
- Depression Mechanism System Adjustment45
- Figure 3-24: Compression Tube Assembly45
- Installation45
- Disassembly46
- Electric Motor46
- Figure 3-25: Electric Motor Service46
- Inspection47
- Table 3-1: Fasteners48
- Table 3-2: Hydraulic Components48
- Torque Specifications48
- General Procedure49
- Introduction49
- Adjustment Procedures50
- Special Tools50
- Troubleshooting50
- Figure 4-1: Motor Controller51
- Table 4-1: LED Fault Codes51
- Upright Motor Controller Diagnostics51
- Measured Voltage at I/O Board52
- Table 4-2: Circuit Board Connectors52

Troubleshooting53

Brand	Upright
Model	SL20 Series
Category	Lifting Systems
Language	English

Upright SL20 Series User Manual

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Upright SL20 Series Specifications

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