OilQuick OQ 70/55, Руководство по эксплуатации и инструкции по монтажу

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Version 1.1 10 2011-06-28
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2. Quick coupler functionality
The quick coupler consists of a basic coupler part (1) with the H-cylinder (2) and various accessories
mounted on it. It is attached to the excavator arm and linkage. The H-cylinder (2) and locking plungers (3) are
moved backwards and forwards (4) when oil is supplied to the H-cylinder. When the H-cylinder is located at
the front position (4:1), the locking plungers are not visible and an attachment can be connected or discon-
nected. When the H-cylinder is located at the rear position (4:2), the locking plungers are visible and an at-
tachment
frame can be connected to the coupler.
The hydraulic quick couplers are located in the middle of the H-cylinder between the locking plungers.
Models OQ 70/55 and OQ 80 can be fitted with two 1/2", two 3/4" and two 1" quick couplings.
A dirt guard (5) prevents the quick couplers from becoming dirty. It is opened automatically when the
H-cylinder is at the front position (4:1) and closed automatically at the H-cylinder's rear position (4:2).
The system installed on the excavator for the hydraulic quick coupler supplies oil to the H-cylinder (2).
The operator only has to take a look at the indicator rod (6) to check the H-cylinder's position.
When the indicator rod (6) is visible, the H-cylinder (2) is at its front position and the quick coupler is
unlocked. In this case an alarm sounds and a warning light comes on in the cab.
When the indicator rod (6) is not visible, the quick coupler is closed or locked with an attachment frame.
In this case there is no acoustic signal and the warning light does not come on.
When a hydraulic tool (7) is coupled, the hydraulic quick couplers are connected and the attachment is
mechanically locked.
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4:1
4:2