MAINTENANCE PROCEDURE MAINTENANCE
4-52
Air bleeding through swing operation can be achieved with fine operation of the swing hydraulic switch to the
extent that it turns on (ON lights up).
BLEEDING AIR FROM IDLER CUSHION CIRCUIT
Bleed the air from the idler cushion circuit before pumping grease into the hydraulic charge grease cylinder.
1. Loosen plug (1) of the grease cylinder 1 turn.
(Left and right, 2 places)
2. Open drain valve (2) on the inside of the axle fully.
(R) Machine's rear side
3. Loosen air bleed plug (3) of the cushion cylinder approx. 1
turn.
(Left and right, 2 places)
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