FORM NO. 56043129 - SR 1900 -
33
SWEEPING SYSTEM
TROUBLESHOOTING GUIDE
Troubleshooting Guide
Symptom
Main broom motor will not run
Part A: Electrical Control Circuit
Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving).
Note 2: The main broom magnetic switch S2 must be open and also the hopper interlock
switch S4 closed, for the main broom system (motors) to run.
Main broom motor will not
Run
1.
Complete the above
operator inputs to turn
on main broom motor.
2.
Back probe the S2/L2
main broom solenoid
coil wires (+Vio &
Grn/Blk) should read
12V’s
Check S2 coil wiring
continuity, repair if faulty
Is there 12V’s at the S2 coil?
Check S2 solenoid coil
resistance (Spec. 9 Ohms).
See hydraulic side broom
motor will not turn
troubleshooting section B
Replace the S2
solenoid coil.
Check the adjustment &
operation of the S2 magnetic
broom SW. Check SW
continuity it must test open w/
broom lever lowered.
Substitute a new
A2 control box
assy. Does motor
run ?
Clean metal
from SW or
replace shorted
SW. Does motor
run ?
Yes
No
No
No
No
Yes
Yes
No
Yes
No
Содержание 56507009
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Страница 76: ...76 FORM NO 56043129 SR 1900 ENGINE HARNESS FOR GM 1 6L GAS Petrol Tier 3 ELECTRICAL SYSTEM...
Страница 77: ...FORM NO 56043129 SR 1900 77 ELECTRICAL SYSTEM ENGINE HARNESS FOR GM 1 6L LPG Tier 3...