"3072ES / 3772ES / 3772ES HD" Service & Parts Manual
October 2008
Page 4-35
HYDRAULIC PRESSURE ADJUSTMENT PROCEDURES
•
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
Pressure Adjustment Table
ART_2579
Hydraulic
Pump
15 15
RV1
Lift Relief
RV2
Steer Relief
RV3
Main Relief
RV4
Overpressure
Relief
LEFT SIDE
FRONT
LIFT CYLINDER
MANIFOLD, 3772
Gauge Port
(Test Port)
STEER
2000 P
S
I 137.9 ba
r
2000 P
S
I 137.9 ba
r
2000 P
S
I 137.9 ba
r
MODEL
3072E
S
3772E
S
3772E
S
HD
MAIN
2800 P
S
I
193 ba
r
2800 P
S
I
193 ba
r
3000 P
S
I 206.8 ba
r
LIFT
2500 P
S
I 172.4 ba
r
2500 P
S
I 172.4 ba
r
2500 P
S
I 172.4 ba
r
Adjusting Relief Valves
•
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.
Caution: Do not operate pump with tamper proof cap removed as fluid will
emit under pressure.
Содержание 3072ES
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Страница 144: ...October 2008 Page B 8 3072ES 3772ES 3772ES HD Service and Parts Manual ART_2096 Entry Chain Reference ART_13850 1 2 3...
Страница 152: ...October 2008 Page B 16 3072ES 3772ES 3772ES HD Service and Parts Manual ART_2100 Lanyard Anchorage Points 1 4 3 5 2...
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Страница 250: ...3072ES 3772ES 3772ES HD Service and Parts Manual October 2008 Part Number Index Part Number Page Part Number Page...
Страница 252: ...NOTES...