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Internal hydraulics & booster
×2
26mm
65Nm
5/16"
20 Nm
DCR 300
continued from previous page...
5. Inlet & drain/return seals
(a) booster unit
(b) seal spacers
(c) seal mounting bracket
(d) inlet seal plugs
NORMAL PRESSURE BLOCK
VALVES
6. Dismantling of block valves:
– 26mm spanner (65Nm)
– check condition of valve O-
rings and seals O
—O
1
– replace if necessary
I. Pressure reducer valve
II. Sequence valve
INTERIOR OF VALVES
Remove valve cap:
– 5/16" Allen key
Valve adjusting components:
(e) adjusting screw (3/16" Allen)
(f) adjusting spring
(g) spring seat
CHECK VALVE – MALE SWIVEL
(h) check valve (g
), situated below
3
the male swivel
(i) may be removed with the check
valve speciality tool
REASSEMBLING
Simply reverse the order of above steps.
16
3
41
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