GB 14 02 02 MA
Maintenance
Cone cCone c
Cone cCone c
Cone c
hechec
hechec
hec
k/rk/r
k/rk/r
k/r
eneene
eneene
ene
ww
ww
w
al, EVal, EV
al, EVal, EV
al, EV
C distribC distrib
C distribC distrib
C distrib
utionution
utionution
ution
vv
vv
v
alvalv
alvalv
alv
ee
ee
e
Periodically check the distribu-
tion valves for proper sealing.
Do this by running the sprayer
with clean water and open all
distribution valves.
Cautiously remove the clip A
and pull out the hose B for the
pressure equalisation device.
When the housing is drained,
there should be no liquid flow
through the pressure equalisa-
tion device. If there is any
leakage, the valve cone E
must be changed.
Remove the clip C and lift the
motor housing off the valve
housing. Then unscrew the
screw D and replace the valve
cone E. Reassemble in
reverse order.
Cone cCone c
Cone cCone c
Cone c
hechec
hechec
hec
k/rk/r
k/rk/r
k/r
eneene
eneene
ene
ww
ww
w
al EVal EV
al EVal EV
al EV
C operC oper
C operC oper
C oper
aa
aa
a
ting unitting unit
ting unitting unit
ting unit
If it becomes difficult to build up sufficient pressure or if
pressure fluctuations occur, it may be necessary to
renew cone and cylinder. A HARDI kit is available for this
purpose. Ref. no. 741293.
1. Remove 4 x screws A and remove the housing.
2. Remove 4 x screws B.
3. Replace cylinder C and O-ring D.
4. Loosen the nut E, remove and replace
the cone F.
5. Reassemble in reverse order.
T192-0039
T192-0040
A
T090-0005
Changing the ball seaChanging the ball sea
Changing the ball seaChanging the ball sea
Changing the ball sea
t in BK opert in BK oper
t in BK opert in BK oper
t in BK oper
aa
aa
a
ting unitting unit
ting unitting unit
ting unit
If the main ON/OFF valve does not seal properly (drip-
ping nozzles when main ON/OFF valve is closed), the
ball and seat should be checked.
Remove the 2 bolts fixing the main ON/OFF-pressure
valve unit to the bracket, unscrew the union nut A and
pull the valve away from the distribution valves.
Check the ball for sharp edges and scratches, and
check the ball seat for cracks and wear - replace if
necessary.
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