Page 4-3
Troubleshooting
4.3 - Troubleshooting Guide
TL50 Service & Parts
TROUBLE
PROBABLE CAUSE
REMEDY
1. Blown electric motor fuse
Check 160 amp electric motor fuse. Replace if blown.
2. Faulty battery
Check the voltage output of the battery charger. If less than 24 VDC,
charger.
3. Faulty battery(ies).
After completely charging batteries, test each battery. Replace as
4. Loose or broken
Check continuity of all battery and motor leads. Replace if necessary.
battery lead.
5. Emergency Stop
With emergency stop switch in the ON position, check continuity
switch(es) failed open.
6. Blown control fuse
Check 7A circuit control fuse. Replace if blown.
1. Oil level in hydraulic
Check hydraulic fluid level, top off as required.
reservoir is low.
2. Faulty hydraulic
Check pressure and delivery of the hydraulic pump. Replace if
pump.
1. Emergency
Close emergency
Lowering valve
down valve.
open.
2. Platform
Observe maximum load rating. (see Operation section of this manual)
overloaded.
3. Faulty controller at
Check functionality of controller. Replace if faulty.
upper controls.
4. Blown control fuse
Check 7A circuit contrrol fuse. Replace if blown.
5. Battery level low.
Check Battery Voltage. Charge if necessary.
Check for fault code 68
6. Outrigger limit
Ensure all four outriggers are deployed and the
switches not activated
limit switch contacts are closed.
Replace switch.
1. Emergency
Ensure that emergency lowering valve is completely closed. Replace
lowering valve
open.
2. Leaking piston
Check for leakage at cylinder return line, replace seals if necessary.
seals in lift
cylinders
Outrigger
Boom rest limit switch is not activated or Ensure booms are stowed. Check that Normally Open contacts of limit
Check that Normally Closed contacts of limit switch are closed when
Adjust switch lever arm or Replace switch.
Tele cylinder will
retract or extend.
All functions
inoperable,
electric motor
does not start.
All functions
inoperable.
Electric motor
starts when
control is
actuated.
Platform will not
elevate or
elevates slowly.
Close Shutoff ball valve.
Booms drift down
after being
elevated
Machine will not
slew when booms
Faulty slew cut-out limit switch
Shutoff ball valve is open.
4.3 T
ROUBLESHOOTING
G
UIDE
Summary of Contents for 503502-000
Page 1: ...ERVICE PARTS MANUAL POWERED ACCESS WORK PLATFORM TL50...
Page 21: ...Page 16 TL50 Service Parts Specifications Notes...
Page 51: ...Page 3 30 Maintenance 3 19 Torque Specifications TL50 Service Parts NOTES...
Page 59: ...Page 5 2 Schematics 5 1 Introduction TL50 Service Parts...
Page 60: ...Page 5 3 Schematics 5 1 Introduction TL50 Service Parts...
Page 61: ...Page 5 4 Schematics 5 1 Introduction TL50 Service Parts...
Page 62: ...Page 5 5 Schematics 5 1 Introduction TL50 Service Parts...
Page 63: ...Page 5 6 Schematics 5 1 Introduction TL50 Service Parts Notes...
Page 66: ...Page 6 3 Illustrated Parts Breakdown General Assembly TL50 Service Parts 1 1 2 3 4 5 6 7...
Page 70: ...Page 6 7 Illustrated Parts Breakdown Booms Posts Assembly TL50 Service Parts 44 45...
Page 72: ...Page 6 9 Illustrated Parts Breakdown Platform Assembly Standard TL50 Service Parts...
Page 74: ...Page 6 11 Illustrated Parts Breakdown Platform Assembly Rotator TL50 Service Parts...
Page 88: ...Page 6 25 Illustrated Parts Breakdown Hydraulic Tank Assembly TL50 Service Parts...
Page 90: ...Page 6 27 Illustrated Parts Breakdown Electrical Assembly TL50 Service Parts...
Page 92: ...Page 6 29 Illustrated Parts Breakdown Hydraulic Assembly TL50 Service Parts...
Page 94: ...Page 6 31 Illustrated Parts Breakdown Decal Assembly TL50 Service Parts...
Page 95: ...Page 6 32 Illustrated Parts Breakdown Decal Assembly TL50 Service Parts...
Page 96: ...Technician s Print TL50 W ork Platform Electrical Schematic...
Page 97: ...Technician s Print TL50 W ork Platform Harness Schematic...
Page 98: ......