12MXT 28000
74 M1
14.4.4 Adjusting the maximum pressure in the
equipment pump (D.R.)
1- Over-tare the L.S. valve on the valve block by turning
the controller screw to blocked position (1 fig. 1).
Note: take care when over-taring the valve.
2- Place a ram in blocked position, for example the
bucket ram.
Engine in maximum regime.
3- Measure the pressure (1 fig. 2) using the manometer.
4- Loosen the lock nut and turn the pressure controller
screw (1 fig. 3) clockwise in order to increase the
pressure.
Note: After this step it is mondatory to adjust
the maximum pressure on equipment
(L.S. valve).
17 and 19 flat spanner
5 and 3 male hexagonal spanner
Manometer, 0 - 600 bar
Operation
Pressure
(bar)
Measurement
(ref. no.)
Adjustment
(ref. no.)
Maximum pump
pressure
300 (+5 -5) 1 fig. 2 1 fig. 3
Fig. 1 SX14 valve block
1
Fig. 2 SX14 valve block
1
Fig. 3 Equipment pump
1
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