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Reference
Only
Manitowoc
Published 05-16-17, Control # 233-03
10-51
999 SERVICE/MAINTENANCE MANUAL
TROUBLESHOOTING
10
Test 19 – Setting the Pump Pressure
To adjust multifunction valve:
1.
Remove the protective cap from the multifunction valve
and loosen the lock nut.
2.
Insert a hex wrench into multifunction valve adjusting
screw.
-
Turning adjusting screw clockwise will increase
relief pressure.
-
Turning adjusting screw counter-clockwise will
decrease relief pressure.
NOTE:
The bypass hex nut is for special applications only
and must not be rotated during setting of pump
pressure without first consulting the pump
manufacturer literature.
Item
Description
Item
Description
1
Multifunction Valve Adjusting Screw for Port “A”
3
Lock Nut
2
Multifunction Valve Adjusting Screw for Port “B”
4
Bypass Hex Nut
P1537
P1533
3
1
4
2
Pump Port Control Function
Pump
Port A
Port B
Travel
Forward
Reverse
Load Drum
Hoist
Lower
Boom Hoist
Raise
Lower
Swing
Right
Left
Multi-Function Valve
Bypass Hex
Lock Nut
A1161
Adjusting
Screw (Inside)
Plastic Cap
Wrench Sizes
Locking Nut
Hex Wrench
Series 042 – 100 Units
19mm
4mm
Series 130 Units
13mm
5mm
Summary of Contents for 999
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 999 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 297: ...R e f e r e n c e O n l y ...
Page 298: ...R e f e r e n c e O n l y ...