Woods Equipment 8100 Benutzerhandbuch

PN-51210 (Rev. 7/98)

NOTE: Check the reservoir daily for proper fluid level, the presence of

water (noted by a cloudy to milky appearance or free water in bottom of

reservoir), and rancid fluid odor (excessive heat).
The hydrostatic pump normally does not require regular fluid changes.

Change the system filter at 250 hour or annual intervals. Change the fluid

and filter and clean the system if the fluid becomes contaminated with

foreign matter (water, dirt, grease, etc.) or if the fluid has been subjected to

temperature levels greater than the recommended maximum.

There is a greaseable bearing on each side of the main jack shaft on the

main hydraulic feed housing. Grease periodically.

Tension drive belt (replace if

necessary).

Refill reservoir. Purge air from

transmission if necessary.

Drain fluid from reservoir and

unit, replace filter element,

and refill with new fluid.

Check relief pressure in sys-

tem with a pressure gauge

rated to 2500 psi. (System set

by factory at 1750 psi.)

Repair or reconnect control

linkage.

Repair drive (replace broken

belt, repair sheared key, re-

pair splined coupling, etc.).

Refill reservoir. Purge air from

transmission.

Suggested Remedy

Repair engine governor.

Repair control linkage.

Repair bypass valve.

Remove foreign material from

valve.

Symptom

Will not attain normal feed rate.

Will not feed when control arm

is moved.

Feed rate is sluggish under

load.

Hydraulic Feed will not pull in

logs over 4" in diameter, or

continuously stalls or stops.

Probable Cause

Engine not operating at

correct speed.

Control linkage damaged or

binding.

Bypass valve stuck partially

open. (Problem in one

direction only.)

Control linkage damaged or

not connected.

Drive between engine and

pump damaged.

Pump low on fluid.

Loose drive belt between

engine and pump.

Pump low on fluid.

Large amount of water in hy-

draulic fluid (evaporates when

hot, resulting in low fluid level).

Hydraulic system overloading

and causing system to go

over relief

Contact your dealer or

factory service

department Before

servicing or repairing

any of the hydrostatic

feed components (pump,

motor, and/or relief

valve). Warranty on

these items may be void

without prior

authorization.

Hydrostatic Pump Troubleshooting

Y D R A U L I C

E E D

A I N T E N A N C E

Hydraulic Feed Maintenance