Case 621G Stage IV, Оригинальное руководство пользователя

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7 - MAINTENANCE
Water from hydraulic system - Drain
WARNING
Pressurized hydraulic fluid can penetrate the skin and cause severe injuries.
Hydraulic fluid is under extreme pressure. Rest the bucket or attachment on the ground. Shut the
engine off, turn the key on, and move the hydraulic control lever through all movements several times
to relieve residual pressure in the system.
Failure to comply could result in death or serious injury.
W0161A
Drain water from the hydraulic system every 1000 hours or once a year, whichever occurs first. (In humid climates,
increased frequency may be required).
Prior operation:
Keep all non-authorized personnel clear of the area. Park the machine on level ground in neutral with the parking
brake applied and the attachment lowered to the ground.
1. Stop the engine. Put a “DO NOT OPERATE” tag on the
steering wheel or the key switch.
2. Push down on the brake pedal a minimum of 30 times
to discharge completely the accumulators.
3. Relieve the pressure in the Ride control accumulator
(if equipped) with the manual bleeder valve located on
the top of the ride control valve. Remove the plug and
turn the valve two turns counter-clockwise.
4. With the ignition key in the ON position, cycle the
bucket/attachment control levers repeatedly through
their complete range of motion for at least
30 s .
5. Move the hydraulic controller to the float position, and
turn the key off.
6. Locate the hydraulic oil remote drain. Use a suitable
container to collect the water.
7. Remove the plug and drain the sediment/water accu-
mulated in the drain hose. Install the drain plug.
8. Add hydraulic oil if necessary.
LEIL19WHL1435AB
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