86c_Wartung en bedingt.fm, 27.10.2010
P1885E/EN 2008-07
17
Maintenance
6
1.
Remove the threaded pin
15
and ball
14
.
2.
Remove the O-ring
12
and sleeve
13
.
3.
Align the output drive and claw as shown in the illustration, see 6.2 Activating the reserve oil, page 15.
4.
Rotate the equalizing piston
11
clockwise as far as it will go until
X
= 0 (starting point).
5.
Unscrew the equalizing piston
11
counterclockwise by 1,0 turns (reserve oil volume).
6.
Connect the pulse unit
8
to the quick disconnect coupling
5
using the adapter.
7.
Close the shut-off valve
7
.
8.
Set the working pressure to approx. 73 psi (500 kPa).
9.
Slowly open the shut-off valve
7
all the way until the
gauge shows a negative pressure of –13 psi (–90 kPa).
10.
Wait approx. 2 minutes until the number of vacuum bubbles has reduced significantly.
11.
Close the shut-off valve
7
slowly. The gauge shows atmospheric pressure again. Missing oil is pushed
into the pulse unit
8
.
12.
Repeat steps 8 through 11 if necessary until the number of bubbles approaches zero.
13.
Uncouple pulse unit
8
, unscrew the adapter and add a couple of drops of oil using the injector.
14.
Mount the ball
14
and screw the threaded pin
15
into place (0.75+0.25 ft lbf, or 1 +0.3 Nm).
15.
Turn the equalizing piston
11
another 2,5 turns counterclockwise, or slightly more if necessary, until
the sleeve
13
can be inserted (oil compensation volume).
16.
Install the sleeve
13
and O-ring
12
.
NOTE
Small air bubbles that become visible due to the high pressure during filling do not mean that the
pulse unit is leaking.
The filling process is not impaired.
