Quantcast PUMP ENGINE GOVERNOR CONTROL DOES NOT OPERATE.

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TM 9-2320-279-10-3
Troubleshooting Index (Cont)
3-16. TROUBLESHOOTING MALFUNCTIONS (CONT).
Table 3-5.
Troubleshooting
Malfunction
Test or Inspection
Corrective Action
16. PUMP ENGINE GOVERNOR CONTROL DOES NOT OPERATE.
417
PUMP ENGINE
Step 1. If operating governor control from the cab: Check if pump
operators panel governor control is active.
If pump operators panel governor control is active, select
MODE switch to deactivate governor control. Then
select cab governor control MODE switch to activate cab
governor control.
Step 2. If operating governor control from pump operators panel:
Check if cab governor control is active.
If cab governor control is active, select MODE switch to
deactivate governor control. Then select pump operators
panel governor control MODE switch to activate pump
operators panel governor control.
Step 3. Check if INTAKE or OPERATOR is displayed on active
governor control.
If INTAKE or OPERATOR is displayed on active
governor control, pump output pressure dropped and the
governor control was not able to maintain pressure
within 4 seconds. Correct problem and select DEC, INC,
or PRESET switch to activate governor control and set
pressure.
Step 4. Check if LO SUPPLY is displayed on active governor control.
If LO SUPPLY is displayed on active governor control,
pump output pressure dropped below 30 psi (207 kPa)
for more than 5 seconds: Correct problem and select
MODE switch to activate governor control.
Step 5. If problem still exists, notify Supervisor.



 


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