E. O
EXCESSIVE FOAMING OF HYDRAULIC OIL FROM VENT HOSE
IL LEAKS IN HYDRAULIC SYSTEM.
1.
2.
3.
F.
1.
2.
3.
*
Fittings are loose.
Worn or broken hoses.
Oil around tyne motor shaft.
Improper oil used.
Pump sucking air.
Hydraulic pump is faulty.
Recommended oil is Shell DONAX TD FLUID or equivalent hydraulic oil with anti-foaming and anti-wear additives
Verify that hydraulic oil used has
anti-foaming additives*.
Inspect and tighten fittings on intake
side of pump.
Test using procedure in section A4 above.
Tighten as required.
Replace as necessary..
Inspect tyne motor for leaking shaft seal.
Rebuild per instructions in Hydraulic Motor
manual or replace with a new motor.
RH918 ROTARY HOE TROUBLE SHOOTING GUIDE (CONTINUED)
11
(See page 9)