916 - 918 Y Series Owner’s/Operator’s Manual
8/30/18
Page 10 of 18
TROUBLE SHOOTING GUIDE (continued)
4. Outboard tine shaft
bearings binding.
Lubricate or replace bearings as needed.
5. Engine improperly tuned or
maintained.
See engine manual and correct as needed.
6. Low oil alert causes engine
to shut down.
This may occur if tilling on hills, (not
advised). Level the tiller and check engine oil
level. Fill if required. Oil alert should reset.
See engine manual.
7. Engine losing power due to
wear.
See engine manual.
E. OIL LEAKS IN HYDRAULIC SYSTEM
1. Fittings are loose.
Tighten as required.
2. Worn or broken hoses.
Replace as necessary.
3. Oil around tine motor shaft.
Inspect tine motor for leaking shaft seal.
Rebuild or replace motor. New motors are
available from Barreto Manufacturing, Inc.
F. EXCESSIVE FOAMING OF HYDRAULIC OIL FROM VENT HOSE
1. Improper oil used.
Verify that hydraulic oil used has anti-
foaming additives. *
2. Pump sucking air.
Inspect and tighten fittings on intake side of
pump.
3. Hydraulic pump is faulty.
Rebuild or replace pump. New pumps are
available from Barreto Manufacturing, Inc.
* Recommended oil is CHEVRON 1000 or equivalent hydraulic oil with anti-foaming and
anti-wear additives. Hydraulic oil should have an ISO/AW rating of 68.
