John Deere rhino pd54 - Manual (Page 52)

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4. MAINTENANCE
4.35 TROUBLESHOOTING-cont'd
CAUSE REMEDY
Objects in front of drums.
Unit in bypass loose or broken forward/
reverse linkage.
Low hydraulic oil.
Improperly adjusted forward/reverse
linkage.
Engine not properly warmed up.
Restricted fuel hose.
low hydraulic oil level.
Plugged hydraulic filter.
Leaking exhaust manifold gasket.
Engine RPM too low.
Defective Aneroid control line.
Dirty fuel filter.
Dirty fuel injectors.
Injection pump drawing in air.
Too much oil in crankcase.
Air filter dirty.
Injection pump out of time.
Faulty hydraulic pump or drive motor.
Remove.
Check bypass valve. Readjust linkage or
replace worn arm linkage, make sure
lever at pump is moving.
Check oil level gauge. Add if required.
Adjust linkage so that lever travel is the
same in either direction from neutral.
Idle before operating to achieve operating
temperature.
Clean or replace fuel hose
Add hydraulic oil.
Replace.
See your authorized servicing dealer or
engine distributor.
Check throttle linkage for proper
actuation. Check full speed.
See your authorized servicing dealer or
engine distributor.
Replace.
Service or replace.
Check fuel lines or replace.
Drain and check. Service or replace.
Clean and/or replace.
See your authorized servicing dealer or
engine distributor.
Test hydraulic pressure for 500psi at full
load on drive motor with engine at full
RPM.
Check charge pressure 220-260 psi with
engine at full RPM.
PROBLEM
Roller won't move forward or reverse.
Unit lacks power moving forward, but
okay in reverse or vice versa.
Unit lacks power.