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FOREWORD
PUSH-PULL COUPLER
WARNING! Before carrying out the following work,
release the residual pressure from the
hydraulic tank. Loosen the oil filler cap of the
hydraulic tank gradually to release the
residual pressure from the hydraulic tank.
WARNING! Even if the residual pressure is released from
the hydraulic tank, some hydraulic oil flows
out when the hose is disconnected. Prepare
a container to receive the oil.
Type 1
Disconnection
1.
Release the residual pressure from the hydraulic tank. For details,
see WORK EQUIPMENT: Releasing Remaining Pressure in
Hydraulic Circuit in the Testing and Adjusting section.
2.
Hold adapter (1) and push hose joint (2) into mating adapter (3).
(Fig. 1)
•
The adapter can be pushed in about 3.5 mm (0.14 in).
★ Do not hold the rubber cap portion (4).
3.
After hose joint (2) is pushed into adapter (3), press rubber cap
portion (4) against the adapter until it clicks. (Fig. 2)
4.
Hold hose adapter (1) or hose (5) and pull it out. (Fig. 3)
•
Since some hydraulic oil flows out, prepare a container to receive the oil.
Connection
1.
Hold hose adapter (1) or hose (5) and insert it in mating
adapter (3), aligning them with each other. (Fig. 4)
★ Do not hold the rubber cap portion (4).
2.
After inserting the hose in the mating adapter, pull it back to check
its connecting condition. (Fig. 5)
★ When the hose is pulled back, the rubber cap portion moves
toward the hose about 3.5 mm (0.14 in). This does not indicate
an abnormality.
WA250-6
PUSH-PULL COUPLER
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