Manitou AETJ 43 - Brake Release Circuit - Pressure Setting; Pressure Switch Adjustment

HYDRAULIC
48
70
547379EN
70 (08/03/2017)
70.3.3 BRAKE RELEASE CIRCUIT  PRESSURE SETTING
CAUTION
Procedure to be performed by two people.
Use a pressure gauge with a capacity of 0 - 250 bar (0-3625.94 psi).
The pressure switch is adjusted only by TIGHTENING the adjustment screw.
PRESSURE SWITCH ADJUSTMENT
(17, 070.1.1),(19, 070.1.2)
- Place a Tee connector on the bypass at outlet F (1, 070  13) and
connect the pressure gauge (2, 070  13)
.
- Switch on the access platform.
- Control the travel and check that the displayed pressure follows
the curve (1, 070  14):
If the pressure switch (2, 070  15) trips BELOW the threshold (2,
070  14), then, with the platform stationary, adjust the threshold
by TIGHTENING the adjustment screw (2, 070  15).
- If the pressure switch (1, 070  15) trips ABOVE the threshold (2,
070  14), unscrew the adjustment screw by a few turns (2, 070  15),
then adjust it by TIGHTENING.
- Repeat the travel test.
NOTE: For the electrical aspects (6, 5 48)
F
0
70 - 13
2
1
Signal pressostat
t(s)
P(bar)
25 bar
100>>120 bar
70 - 14
1
2
D-HY-278
PF
70 - 15
1
2