FORM NO. 56043126 - CR 1100, CR 1200 -
27
WHEEL DRIVE SYSTEM
TROUBLESHOOTING GUIDE
Possible Symptom
1
No drive and no machine accessory functions
Note 1: Do all testing with key switch on seat switch closed and battery hold down interlock switch closed.
Check for open in: F10
(400 A) Fuse F2 (5A)
Circuit Breaker
Reset C.B. Replace Fuse.
Does the machine
function?
At the K10 Aux.
coil is there 36V
YEL/BRN(+)
BLK/ORN(-)
1.Check for 36V(+) at the
A1 board ORN wire J2-11 to
battery ground
2.Check 36V(-) at the B-
inputs BLK wires to bat pos.
Repair or
replace
key switch
or wiring
Repair or
replace
wiring. Is
there
voltage at
the coil?
Replace
the A1
control
board
Check coil resistance at K10
120 ohms (+ or - 10%)
Replace K10
contactor. Are the red
and grn acc lights on?
Check for 36V(+) at the K10 load
output BLU/GRN wire to bat. ground.
Check for 36V(+) at K10 load input
RED wire to bat ground.
At the A1 board is
the red key switch
light on?
At the A1 board
are the grn and red
acc. lights on?
Repair or replace
wiring.
Replace K10
contactor
Check for 36V(+) at the A1 board
J1/J23 GRN/BLK wires to bat. ground.
Repair or replace CB F3
20 amp or wiring. Does
the machine function?
Check for 36V(+) at the F1 25 amp CB
VIO wire to bat. ground.
Repair or replace CB F1
25 amp or wiring. Does
the machine function?
Replace the A1 control board
yes
yes
yes
yes
yes
yes
no
yes
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
no
Summary of Contents for Cr 1100
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