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MAINTENANCE
4.9.5
HYDRAULIC OIL COOLERS - INSPECT AND CLEAN IF NECESSARY
See illustration Z 20369
Provide adequate working platform for safe access to the
hydraulic oil coolers.
Before removing mounting bolts (1) of the hydraulic oil
cooler door (2) check to make sure that all door hinges
are in good condition and properly fastened on their car-
rier frames. If cracks are found at the welded joints of the
hinges, DO NOT remove mounting bolts (1) otherwise the
cooler door may become detached and fall off. Danger of
accidents. Have the damage repaired as soon as possi-
ble.
1. Loosen mounting bolts (1).
2. Open door (2).
REMARK
Details (A and B) i show LH hinge mounted oil coolers. The
description below applies also to RH mounted oil coolers.
3. Loosen fasteners (3) and swing out oil coolers (4 and 5).
4. Secure door (2) and oil coolers (4 and 5) with locking bars
(7, 8 and 9).
5. Clean the oil coolers with compressed air. Direct the air flow
from inside to outside.
6. After cleaning, bring back the oil coolers to their home posi-
tion.
PROCEED AS FOLLOWS
Disengage locking bars (7, 8 and 9) and bring them in storage
position (10).
Swing back inner cooler (5). Take care guide pin (A) fits into
hole (B) of main frame (6). Secure cooler (5) with fastener (3).
Swing back outer cooler (4); observe (A - B) and secure with
fastener (3).
Close door (2); observe (B - A). Install mounting bolts (1) and
tighten securely.
NOTICE
When cleaning the oil coolers, inspect also laying and fas-
tening of the hydraulic oil lines.
WARNING
4.9 EVERY 50 OPERATING HOURS OR WEEKLY
357
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