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-37
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
H
YDRAULIC
P
RESSURE
A
DJUSTMENT
- 3084ES
• Before attempting to check and/or adjust pressure relief valves, operate the machine for 15
minutes or long enough to sufficiently warm the hydraulic fluid.
• Insert a 0-5000 psi gauge onto the pressure test port on the valve manifold using gauge
adapter fitting MEC part no. 8434
Table 4b-7: Hydraulic Pressure Adjustment
A
D J U S T I N G
R
E L I E F
V
A L V E S
• Remove the tamper proof cap.
• Turn adjustment screw “IN” to increase pressure.
• Turn adjustment screw “OUT” to decrease pressure.
• When correct pressure is obtained replace tamper proof cap with a new one.
Do not operate pump with tamper proof cap removed. Fluid will emit under
pressure.
Figure 4b-12:
Adjustable Valves Location - 3084ES
Model Main Lift Steer Stand-by
3084ES 2800 PSI 193 bar 2500 PSI 172.4 bar 2000 PSI 137.9 bar not used not used
ART_3160
15
AMP BREAK
ER
RV1
Lift Relief
RV2
Steer Relief
RV7
Main Relief
Alternate Configuration
RV4
Overpressure
Relief
LEFT SIDE
FRONT
LIFT CYLINDER
MANIFOLD
Gauge Port
(Test Port)
Hydraulic
Pump
RV7
Main Relief
Back of Manifold