TM 5-2420-224-20-2
CRANE INNER BOOM LIFT CYLINDER HYDRAULIC LINES AND
FlTTINGS REPLACEMENT
This task covers:
a. Removal b Installation
Applicable Configuration:
General Safety Instructions:
HMMH
Tools and Special Equipment:
Shop Equipment, SC 4910-95-CL-A74
Tool Kit, SC 5180-90-CL-N26
Materials/Parts:
Packing (AR)
Washer, Lock (AR)
Caps and Plugs
Appendix C, Item 7
Rags
Appendix C, Item 32
Equipment Condition:
Reference
Condition Description
W A R N I N G
High pressure hydraulics [oil
under 2450 psi (16,893 kPa)]
o p e r a t e t h i s e q u i p m e n t .
N e v e r
d i s c o n n e ct
a ny
h y d r a u l i c l i n e o r f i t t i n g
w i t h o ut
f i r s t
d r o p p i n g
p r e s s u r e t o z e r o . A h i g h
p r e s s u r e o i l s t r e a m c a n
p i e r c e b o d y a n d c a u s e
severe injury to personnel.
Fuel and oil are slippery and
c a n c a u s e f a l l s . T o a v o id
injury, wipe up spilled fuel or
oil with rags.
Page 2-23
Crane in Three-Point
Stance
Page 2-23
Hydraulic Pressure
Relieved
C A U T I O N
Cap or plug all ports and ends of hoses and tubes to prevent contamination
of hydraulic oil. Failure to do so may result in damage to equipment.
NOTE
Tag lines prior to removal to aid in installation.
Discard packing(s) and lock washer(s).
REMOVE crane inner boom lift cylinder hydraulic LINES and FlTTINGS using illustration
NOTE
Install new packing(s) and new lock washer(s).
INSTALL crane inner boom lift cylinder hydraulic LINES and FlTTINGS using illustration
4-636
and legend as a guide.
and legend as a guide.
