TM 5-3805-281-24-2
Engine Rebuild, Break-In, and Tune-Up
Sufficiently load engine during the first 100 hours of
operation, but, avoid over-loads, excessive idling, and
extended no-load operation.
A second 100-hour service interval with John Deere
Engine Break-in Oil may be required if the engine is
operated under light loads during the first 100-hour
break-in period.
After 100 hours maximum, drain break-in oil and change
oil filter. Fill crankcase with John Deere TORQ-GARD
SUPREME OR PLUS-50 or other heavy-duty diesel
engine oil within the same service classification as
recommended in this manual. See DIESEL ENGINE OIL
in Group 02, Fuels, Lubricants, and Coolant.
TORQ-GARD SUPREME is a trademark of Deere & Company.
PLUS-50 is a trademark of Deere & Company.
RG,RG34710,1054
1923OCT972/2
CHECK CRANKCASE VENTILATION SYSTEM
1. Inspect crankcase ventilation system for restrictions.
Lack of ventilation causes sludge to form in crankcase.
This can lead to clogging of oil passages, filters, and
screens, resulting in serious engine damage.
2. Clean crankcase vent tube (A) with solvent and
compressed air if restricted. Install and tighten hose
clamps securely.
Crankcase Vent Tube
RG,RG34710,1055
1923OCT971/1
