49REGULAR CHECKS AND MAINTENANCE WORK
BReplacing Hydraulic Return Filter Element
(First replacement after 250 service
hours)
To avoid personal injury:
A Remove the oil filter only after the oil in the
hydraulic tank has cooled down.
1. Remove the cover of the hydraulic tank.
2. Pull out the filter support by the top from the hydraulic
tank.
3. First loosen the lock nut, then remove the return filter
from the filter support and replace with a new filter.
Do not forget to tighten the lock nut.
A Always check the oil level when replacing the filter.
EVERY 1000 SERVICE HOURS
Do all 50, 200, 250 and 500 hour servicing at the same
time.
BCleaning of the Pipe filter of the Hydraulic
Pilot System (for Hydraulic Pilot Types)
Dust and dirt collect on the concave side of the filter.
Clean the filter by letting hydraulic oil flow through from
the convex side.
BReplacing the Hydraulic Pilot Filter
Element
To avoid personal injury:
A Before replacing the element, wait long enough
for the hydraulic fluid to cool down.
1. Remove the arch cover.
2. Remove the hydraulic oil tank cover.
3. Remove the pilot filter case from the head cover.
4. Wrench and pull out the element downward.
5. Replace the O-ring with a new one.
6. Apply a light coating of clean hydraulic oil to the O-ring
and fit it to the case firmly. Be careful not to scratch the
O-ring.
7. Fit the case to the head cover.
8. Let the engine run for approx. 3 minutes.
9. Check the oil level of hydraulic oil tank.
(1) Cover
(2) Return filter
(3) Filter support
(4) Lock nut
(A) Oil
(1) Head cover
(2) Element
(3) O-ring
(4) Case
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