SECTION 5 MAINTENANCE
Page 44
OM560C99/1E DRESSTA
HYDRAULIC SYSTEM
Fig. 5.48. Hydraulic Tank Sight Gauge
1 - Air Filter Service Indicator 2 - Hydraulic Reservoir Sight Gauge
WARNING! This machine has a pressurized hydraulic reservoir. Loosen the filler
cap slowly to release the pressure. It is obligatory before disassembly of any
hydraulic system components.
4. Slowly remove the reservoir filler cap. Add fluid until the ball in the sight gauge reaches the top
of the gauge. Refer to "REFILL SPECIFICATIONS AND CAPACITIES CHART" for the grade of
fluid specified.
5. Install the filler cap.
5.14.2. CHANGING THE HYDRAULIC SYSTEM OIL
1. Operate the boom, bucket and steering circuits until the hydraulic oil becomes warm.
2. Park the machine on level ground, lower the bucket flat on the ground.
3. Stop the engine, and apply the parking brake.
4. Open access cover 1, Fig. 5.49.
5. Clean the top of the reservoir with kerosene or cleaning solvent.
6. Remove the plug from the reservoir drain valve, Fig. 5.50.
7. Fit a short threaded pipe P/N 470-90-1008 into the end of a piece of hose P/N 470-90-1006
(enclosed in accessories). Screw the pipe into drain valve (4). Put the other end of the hose
into a container large enough to hold the fluid from the reservoir.
8. Raise the bucket completely, and roll the bucket all the way back.
WARNING! NEVER work or walk under a raised bucket without proper blocking
in raised position.
9. Remove reservoir covers 2, Fig. 5.49.
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