5
5.2.2 Coupling:
The unit is equipped with different quick-action couplings, i.e. "male" and "female".
Caution
: Never connect or disconnect the quick-action coupling when the pump is in operation. Set the pump
relief valve to its "neutral" position before coupling or uncoupling hoses and/or tools.
To couple the hoses using the flat face coupler:
1. Remove the dust caps from both the male and female couplers.
2. Insert the male coupler into the female coupler and push.
3. The coupler’s locking ring (A) will move forward to show the coupler is locked.
4. Check to make sure the connection is made by pulling on the two couplers.
To uncouple the hoses using the flat face coupler:
1. Turn the locking ring (A) of the coupler ¼ turn counterclockwise when holding it in your hand
pointing away from you (direction of large arrow on coupler)
and
pull back on the locking ring
(direction of small arrow on coupler).
2. Remove the male coupler from the female coupler if it has not released completely.
3. Make sure you put the dust caps back onto the couplers when not in use. This is an important step to
keep dirt and foreign objects from getting into the coupler.
Clean the female coupler by removing any dirt, oil, etc. with a clean dry rag. To ensure the automatic locking
capability of the coupler, the coupler should be checked periodically and cleaned by following the simple steps
below:
1. Rinse the coupler with lukewarm water and a soft soap solution.
2. When the coupling is dry and free from water, lubricate the flat end of the coupling (B) with hydraulic oil or
by spraying WD-40 onto the end.
3. Lubricate the locking sleeve by spraying WD-40 carefully in the area (C) between the back part and the
locking sleeve.
4. Connect the nipple into the coupling and see if the locking sleeve easily turns itself to the lock position. Check
by pulling the locking sleeve straight back. The nipple should not disconnect.
5. To disconnect the nipple, turn the locking sleeve and pull it backward.
6. Repeat steps 4 and 5 a few times to assist internal lubrication of the locking sleeve.
A
B
C
