36
- FORM NO. 56043126 - CR 1100, CR 1200
HYDRAULIC SYSTEM
Hydraulic pump motor
will not operate
Replace the A1 Board.
Does the pump operate?
At the A1 board is the
Hydraulic Pump green
indicator light on?
Check for 36V at the
K11 coil wire colors
VIO(+) & BLU/WHT(-)
Repair or replace K11
coil wiring.
Does the pump operate?
Check for coil
resistance at K11
(149 ohms + or - 10%)
Replace K11 Contactor
Does the pump operate?
See Part B Load Circuit
no
no
no
no
no
no
yes
yes
yes
Separate the motor from the pump is the
coupler sheared? See pump removal in
the Mechanical Repair Service Manual.
Hydraulic pump will not operate
Replace Pump Assembly
Replace damaged coupler.
yes
no
TROUBLESHOOTING GUIDE
Possible Symptom
1
Hydraulic pump motor will run but all hydraulic functions do not operate.
Note: Do all testing with the key switch on and hopper raise button pressed at A2 Display panel.
TROUBLESHOOTING GUIDE
Possible Symptom
1
Hydraulic pump motor will not operate.
Part A: Coil Circuit
Note: Do all testing with the key switch on and hopper raise button pressed at A2 Display panel.
Form No. 56043127
Summary of Contents for Cr 1100
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