68
SJ519 TH
216942AC
Section 4 – Troubleshooting Information
Electrical System
10.
Loose or broken 26A wire from harness connector
P31 pin 13 to park brake solenoid 3H-26A
Check continuity. Replace if defective
11.
Loose or broken 00 wire from park brake solenoid
to ground
Check continuity. Replace if defective
12.
Defective brake valve coil 3H-26
Check continuity and resistance through coil.
Replace if defective
4.2-4 Forward or Reverse Will Not Engage
1.
Loose or broken wire 26A from park brake release
relay 05CR pin 87 to 26DCR pin 87
Check continuity. Replace if defective
2.
Loose or broken 05 wire from fuse F2 to PS1
common
Check continuity. Replace if defective
3.
Loose or broken wire 26D from PSI normally
closed contact to 26DCR relay pin 86
Check continuity. Replace if defective.
4.
Defective pressure switch PS1
Check that switch is closed normally and opens
with 50 PSI. Replace if Defective
5.
Loose or broken wire 00 from 26DCR relay pin 85
to ground
Check continuity. Replace if defective.
6.
Defective relay 26DCR
Check continuity through contacts of relay (pin 30
to 87 with coil energized). Replace if defective
7.
Loose or broken 26E wire from 26DCR relay pin 30
to drive controller pin 4
Check continuity. Replace if defective
8.
Loose or broken 207 wire from throttle pedal pin 6
to drive controller pin 21
Check continuity. Replace if defective
9.
Loose or broken 00 wire from throttle pedal pin 1
to ground
Check continuity. Replace if defective
10.
Loose or broken 03 wire from SW1 to fuse F23
Check continuity. Replace if defective
11.
Fuse F23 open
Check for defective wiring. Replace fuse
12.
Loose or broken wire from fuse F23 to drive
controller pin 6
Check continuity. Replace if defective
13.
Loose or broken 03 wire from SW1 to fuse F29
Check continuity. Replace if defective
14.
Fuse F29 open
Check for defective wiring. Replace fuse
15.
Loose or broken wire from fuse F29 to drive
controller pins 9, 10, and/or 19
Check continuity. Replace if defective
16.
Loose or broken 00 wire from drive controller pins
7, 18, 28, and/or 29
Check continuity. Replace if defective
17.
Defective drive controller
Replace if defective
Summary of Contents for SJ519 TH
Page 1: ...SERVICE MANUAL 216942AC October 2020 ANSI SJ519 TH TELEHANDLERS...
Page 4: ...4 SJ519 TH 216942AC Notes...
Page 22: ...22 SJ519 TH 216942AC Section 1 Scheduled Maintenance Function Tests...
Page 23: ...23 SJ519 TH 216942AC Section 2 Maintenance Tables...
Page 34: ...34 SJ519 TH 216942AC Notes...
Page 35: ...35 SJ519 TH 216942AC Section 3 System Component Identification and Schematics...
Page 40: ...40 SJ519 TH 216942AC Notes...
Page 107: ......
Page 108: ...www skyjack com...