TM 5-2420 -224-20-2
B A C K H O E D I P P E R C Y L I N D E R H Y D R A U L I C L I N E S A N D F l T T I N G S
R E P L A C E M E N T
This task covers:
a. Removal b. Installation
I N I T I A L S E T UP
Applicable Configuration:
SEE
Tools and Special Equipment:
Shop Equipment, SC 4910-95-CL-A74
TOOI Kit, SC 5180-90-CL-N26
Materials/Parts:
Packing (AR)
Washer, Lock
Caps and Plugs
Rags
Equipment Condition:
Reference
Condition Description
Page 2-22
Backhoe in Three-Point
Stance
Page 2-23
Hydraulic Pressure
Relieved
R E M O V A L
Appendix C, Item 7
Appendix C, Item 32
General Safety Instructions:
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 c t a n y
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 u t 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 an
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.
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 backhoe dipper cylinder hydraulic LINES and FITTINGS using illustration and legend as a guide.
I N S T A L L A T I ON
NOTE
Install new packing(s) and new lock washer(s).
INSTALL backhoe dipper cylinder hydraulic LINES and FITTINGS using illustration and legend as a guide.
4-614
