Y-4 .
Y-4 .
Air Bleeding Procedure 7. Positive control circuit
8. Hydraulic valve (winch brake)
While any of the crane operations described in 6.
[NOTICE]
is performed, loosen the air-bleed plug near the
Bleed this valve after the pilot circuit (hydraulic pilot control valve) (See the section 6.) and the positive control (See the section 7.) are bled.
lower pump to bleed the positive control circuit. You can bleed the circuit at the same time with
Conditions -1 Engine speed : Idling (700 min ) PTO : ON
pilot circuit bleeding.
1. Open the air-bleed plug and move the winch lever fully to the end of its stroke in the direction corresponding to the plug. 2. When there are no more bubbles in the oil that flows out, tighten the plug while the oil continues to flow. Then return the lever to the neutral position.
3. Bleed the other plugs as described in above 1 and 2.
25
WY05-3162E
345-806-12500
0 △
