Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4b-39
T
R O U B L E S H O O T I N G
- 3 0 8 4 E S
M O D E L
- - H
Y D R A U L I C
P
R E S S U R E
A
D J U S T M E N T
- 3 0 8 4 E S
C
O U N T E R B A L A N C E
V
A L V E S
Figure 4b-13: Counterbalance Valves
1. Loosen the locknut on one of the
valves.
2. Turn the adjustment screw clock-
wise (to the right) until it reaches
the internal stop and the screw will
turn no further.
3. Turn the adjustment screw clock-
wise (to the right) 3¼ turns.
4. Tighten the locknut while holding
the adjustment screw in position to
prevent it from rotating.
5. Repeat steps 1 through 4 on the
other Counterbalance valve.
6. Adjustment is complete.
ART_2580
Counterbalance
Valves