Mtd 556 Manual do Utilizador descarregar pdf (Página 16)

HYDRAULIC TROUBLE SHOOTING GUIDE

Problem

Probable Cause(s)

Corrective Action

Cylinder rod wili not

move

A Broken driveshaf

B Loose shaft coup ing

C Gear sections da naged

D Damaged relief v live

E Hydraulic lines bl icked

F Too little oil to pu np

G Damaged directidnal valve

H Blocked direction al valve

A Return pump for authorized repair

B Correct engine/pump alignment as necessary

C Return pump for authorized repair

D Return directional valve for authorized repair

E Flush and clean hydraulic system

F Add oil to reservoir

G Return directional valve for authorized repair

H Flush and clean hydraulic system; return

directional valve for authorized repair

Slow cylinder shaft

speed while

extending and

retracting

A Gear sections da maged

B Excessive pump niet vacuum

C Slow engine spei id

D Damaged relief v alve

E Too little oil to pu np

F Air in oil

G Directional valve leaking internally

H Internally damag ad cylinder

A Return pump for authorized repair

B Make certain pump inlet hoses are clear

and unblocked—use short, large

diameter iniet hoses

C Return engine for authorized repair

D Return directional valve for authorized repair

E Add oil to reservoir

F Add oil, clean reservoir, make certain oil

return tube is below oil level

G Return directional valve for authorized repair

H Return cylinder for authorized repair

Engine runs but

wood will not split,

or wood splits too

slowly

A Small gear section damaged

B Pump check vaK e leaking

C Excessive pump inlet vacuum

D Low relief valve : etting

E Too little oil to pump

F Air in oil

G Directional valve leaking internally

H Overloaded cylir der

1 Internally damac ed cylinder

A Return pump for authorized repair

B Return pump for authorized repair

C Make certain pump inlet hoses are

clear and unblocked; use short, large

diameter inlet hoses

D Adjust valve while using pressure gauge*

E Add oil to reservoir

F Add oil, clean reservoir, make certain oil

return tube is below oil level

G Return directional valve for authorized repair

H Do not attempt to split wood against the grain

1 Return cylinder for authorized repair

Engine stalls during

splitting

A Low horsepower'weak engine

B Overloaded cylir der

A Return engine for authorized repair

B Do not attempt to split wood against the grain

Engine will not turn

or stalls under low

load conditions

A Engine/pump misalignment

B Frozen or seizec pump

C Low horsepower 'weak engine

D Hydraulic lines t ocked

E Blocked directional valve

A Correct alignment as necessary

B Return pump for authorized repair

C Return engine for authorized repair

D Flush and clean hydraulic system

E Flush and clean hydraulic system; return

directional valve for authorized repair

Leaking pump shaft

seal

A Broken drivesha t

B Engine/pump mi aalignment

C Gear sections d; imaged

D Poorly positione

i shaft seal

E Plugged oil brea ther

A Return pump for authorized repair

B Correct alignment as necessary

C Return pump for authorized repair

D Return pump for authorized repair

E Make certain reservoir is properly vented

'Should be performed by an authorized service dei iler only.

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