Removal of the outlet element type KV check 6.4
valve
Outlet check valve removal
On the outlet element, unscrew the check valve (24 mm open end
spanner).
Reassembly :
replace the check valve o-ring and back-up ring,1.
mount the check valve inside the outlet element, torque for the valve : 2.
150 ± 10% N.m.
Outlet check valve setting
Loosen the locking nut (19 mm open end spanner).
Unscrew the throttle (6 mm socket wrench).
replace the throttle o-ring,1.
mount the throttle inside the check valve and set it to the specified 2.
value,
t3. orque for the locking nut : 50 ± 10% N.m.
The control block does not need to be removed from the machine to
perform this operation.
DANGER
Oil pressure
Machine off:
place all of the machine’s actuators connected to the control block in f
neutral position,
release stored pressure by operating all the spools. f
NOTICE
Environment damages risk
Install a vacuum pump on the tank to limit oil leakage during this f
operation.
Collect possible leaks with a suitable receptacle. f
RE 64122-S/06.2011 | Type SM 12 Bosch Rexroth AG 13/30
Inlet and outlet elements repair procedure
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