Mtd 241-521-000 Manual de usuario descargar pdf (Pagina 15)

HYDRAULIC TROUBLE SHOOTING GUIDE

Problem

Probable Cause(s) Corrective Action

Cylinder rod will not

move

A Broken driveshaft

B Loose shaft coupling

C Gear sections damaged

D Damaged relief valve

E Hydraulic lines blocked

F Too little oil to pump

G Damaged directional valve

H Blocked directional 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 damaged

B Excessive pump inlet vacuum

C Slow engine speed

D Damaged relief valve

E Too little oil to pump

F Air in oil

G Directional valve leaking internally

H Internally damaged cylinder

A Return pump for authorized repair

B Make certain pump inlet hoses are clear

and unblocked—use short, large

diameter inlet 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 valve leaking

C Excessive pump inlet vacuum

D Low relief valve setting

E Too little oil to pump

F Air in oil

G Directional valve leaking internally

H Overloaded cylinder

1 Internally damaged 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 High relief valve setting

C High unloading valve setting

D Overloaded cylinder

A Return engine for authorized repair

B Adjust valve while using pressure gauge*

C Adjust valve while using pressure gauge*

D 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 seized pump

C Low horsepower/weak engine

D Hydraulic lines blocked

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 driveshaft

B Engine/pump misalignment

C Gear sections damaged

D Poorly positioned shaft seal

E Plugged oil breather

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 dealer,only.

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