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Page Title:
LOSS OF HOOK ARM LOAD HOLDING. (Cont) |
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 TM 9-2320-364-34-1
High pressure hydraulics [oil under
3675 psi (25,339 kPa) pressure] operate
this equipment. Refer to vehicle operator
and maintenance manuals for hydraulic oil
pressure. Never disconnect any hydraulic
line or fitting without first dropping
pressure to zero. Failure to comply may
result in injury to personnel.
Fuel and oil are slippery and can cause
falls. To avoid injury, wipe up spilled
fuel or oil with rags.
Do not get under LHS when disconnecting or
connecting connectors or hoses. A hydraulic
malfunction could cause LHS to lower causing
serious injury.
FLOWMETER TEST (CONT).
(15) With the aid of an assistant, observe
flowmeter while holding joystick in
UNLOAD position.
(a) If more than 0 gpm (0 lpm) are
present, perform Steps (16)
through (23) below and replace
LH hook arm cylinder
(Para 17-12).
(b) If 0 gpm (0 lpm) are present,
cylinder is OK.
(16) Set hydraulic selector switch to
OFF position.
(17) Turn OFF ENGINE switch.
(18) Disconnect hose 2917 male quick
disconnect from LHS control box
female quick disconnect.
(19) Disconnect flowmeter from two
adapter hoses.
(20) Disconnect adapter hose from
middle frame bulkhead.
(21) Disconnect adapter hose from
hose 2881.
(22) Connect hose 2881 to middle
frame bulkhead.
(23) Connect quick disconnect
hose 2917.
2-317
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