TM 9-4940-568-34
6-14
6-3.
JACK CYLINDER REPAIR (Continued)
(18) Apply hydraulic oil to backup ring (15)
and preformed packing (14) and install
on holding valve (10).
(19) Apply hydraulic oil to preformed packing
(13) and two backup rings (12) and
install on holding valve (10).
(20) Apply hydraulic oil to preformed packing
(11) and holding valve (10) and install
on cylinder rod (3) side marked “P”.
(21) Tighten holding valve (10) to 50 to 55
lb-ft (68 to 75 N.m).
(22) Apply hydraulic oil to preformed packing
(9) and backup ring (8) and install on
check valve (4).
(23) Apply hydraulic oil to preformed packing
(7) and two backup rings (6) and install
on check valve (4).
(24) Apply hydraulic oil to preformed packing
(5) and check valve (4) and install on
cylinder rod (3).
(25) Apply hydraulic oil to preformed packing
(2).
(26) Install preformed packing (2) and plug
(1) on cylinder rod (3).
END OF TASK
Follow-On Maintenance
Jack cylinder installed (Para 3-9).
Check crane for proper
operation and hydraulic leaks,
(TM 9-4940-568-10).
