Troubleshooting n – Allmand Brothers Allmand 8.5 10 FT BACKHOE User Manual

Page 37

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37

PROBLEM

POSSIBLE CAUSE

REMEDY

Backhoe fails to hold up

Broken or leaking lines

Replace broken hose

load

and check for leaks

Dirty oil

Drain and refill oil,
replace filter

Oil leaking past cylin-

Replace packings

der packings

Oil leaking past control

Replace or repair worn

valve

section

Faulty relief valve

Clean or replace

Oil heating

Dirty oil

Drain and refill oil,
replace filter

Partially plugged inlet

Clean filter element

filter

Control valve held

Return control to

open too long

neutral position when

not in use

Worn pump

Replace pump

Relief valve set too low

Set valve correctly

Oil too light in hot

Use recommended oil

weather

Engine running too fast

Reduce throttle

Damaged oil lines

Replace damaged lines

Poor operating tech-

Learn smooth operating

nique causing excess-

methods

ive oil flow over relief
valve

TROUBLESHOOTING

N

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