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Page Title:
BACKHOE CONTROL VALVE REPLACEMENT |
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 TM 5-2420-224-34
BACKHOE
CONTROL
VALVE
REPLACEMENT
This task covers: a. Removal b. Installation c. Testing d. Adjustment
INITIAL SETUP
Applicable Configuration:
Equipment Condition:
SEE
Condition Description
Reference
Backhoe Control Tower
Tools and Special Equipment:
TM 5-2420-224-20
Removed
Shop Equipment, SC 4910-95-CL-A31
Hydraulic Pressure
TOOl Kit, SC 5180-90-CL-N26
TM 5-2420-224-20
Relieved
Tool Outfit (HSTRU), NSN 4940-01-036-5784
Materials/Parts:
General Safety Instructions:
Nut , Lock
WARNING
Washer, Lock (3)
High pressure hydraulics [oil
Packing (8)
u n d e r 2450 psi (16,893 kPa)]
Packing (2)
operate this equipment.
Never disconnect any
Appendix B, Item 8
Caps and Plugs
hydraulic line or fitting
without first dropping
Appendix B, Item 40
Rags
pressure to zero. A high
Personnel Required: (2)
pressure oil stream can
pierce body and cause
References:
s e v e r e injury to personnel.
TM 5-2420-224-20
Wear safety goggles when
p e r f o r m i n g leakage tests on
v a l v e s . Failure to do so may
result in serious eye injury
d u e to high pressure oil.
Fuel and oil are slippery and
can cause falls. To avoid
injury, wipe up spilled fuel or
oil with rags.
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