Section 7 - Lubrication and Maintenance
7-17
31200172
Hydraulic Return Filter
A. Hydraulic Return Filter Indicator Check
1. Apply park brake, shift transmission to "Neutral" and lower forks or attachment
to horizontal position.
2. Check hydraulic return filter indicator with engine at normal operating
temperature.
3. Have an assistant open the tank cover.
4. With the engine at full throttle and the assistant observing the indicator (
2
)
located on the hydraulic return filter (
1
), extend and retract the boom 10 to 12 ft
(3,0 to 3,7 m). The bar gauge should be within the green area.
5. Replace filter before the gauge reaches the red area on the indicator. If it
reaches the red area, the filter is too dirty and hydraulic oil is bypassing the
filter.
6. Close and secure the tank cover.
10
OW0970
OW1060
OX0170
1
2
Содержание GRADALL 544D-10
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