7-57
MAINTENANCE
M4GB-07-044
1
2
3
4
5
M4GB-07-166
Replace Air Breather Element
--- every 2000 hours
d
WARNING: Hydraulic oil becomes hot and pressurized
during operation.
Severe burns may result if skin comes in contact
with escaping hydraulic oil immediately after
operation. Wait for the oil to cool before starting any
maintenance work.
Replace
1. Park the machine following the same procedures as
described on page 7-8 for preparation of inspection/
maintenance work.
2. Before replacing the filter element, be sure to relieve the
air pressure from the hydraulic oil tank by pressing air
bleed valve (1).
3. Rotate cover (3) clockwise approx. 1/4 turn. Remove cap
(2) by rotating it counterclockwise.
4. Rotate cover (3) counterclockwise and remove it.
Remove element (4).
5. Install new element (4). Tighten cover (3) clockwise.
After cover (3) come in contact with the inside element,
tighten the cover by 1/4 turn further.
6. Manually tighten cap (2) clockwise to the end. Hold cap
(2) in position by hand to prevent the cap from turning.
Tighten cover (3) counterclockwise 5 to 10° securely.
7. Take care not to allow water or dust to enter the
clearance (air discharge port) between cover (3) and
body (5).
f
NOTE: Replace the element at the recommended regular
intervals to keep the hydraulic oil clean and to extend the
service life of the hydraulic components.
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