Remove the tank clean-out cover located on engine side
of tank. Clean out all foreign material and flush with clean
hydraulic fluid. Replace clean-out cover using new gasket.
At this time it is advisable to replace the hydraulic filter
element, detailed previously, clean the hydraulic filter
CHANGE OIL AND FILTER after machine operation when
strainer and clean filler- breather cap strainer. Refill the
oil is at operating temperature. Remove sump screen,
hydraulic tank with clean hydraulic fluid
cleaning thoroughly and replace using new gaskets.
(refer to LUBRI CANTS SPECIFICATION CHART).
Access to the filter can be made by removing rear floor
plate and seat mounting base, complete with seat. Using
a chain or belt filter wrench, remove canister. Remove old
element and check for foreign material deposits. Install
new element and O ring. Install filter canister and torque
ADJUSTMENT should be made every 400 hours after
to 20 to 25 ft-lbs (2,8 to 3,5 m-kg). Refill transmission to
machine operation with hydraulic oil at operating
temperature. Install a 3000 psi pressure gauge In dozer
CHART). Idle engine to prime converter and lines and
hydraulic system test port on front frame bulkhead at
recheck level, topping to FULL mark as required. When
dozer cylinder hose. With engine RPM at 2000, check
oil Is at operating temperature of 180 to 200°F (82 to
relief valve pressure by raising dozer blade to maximum
930C) make final oil level check.
height and taking gauge reading.
DRAIN AND CLEAN HYDRAULIC TANK every 400
hours. Park machine on level ground, set parking brake,
lower blade and drain hydraulic oil into a 50 Imp. gallon
(60 US gal /220 liter) container.
Dozer System Pressure Test
Caution: Do not hold for more than 30 seconds. If
pressure is more than 50 psi (345 kPa/3,5 kg/sq. cm)
above or below 1500 psi (10335 kPa 106 kg/sq. cm), the
relief valve should be adjusted (refer to SERVICE
MANUAL for detailed instructions).