TM 9-2320-279-34-2
Winch Maintenance Instructions (Cont)
Table 16-1. Compression Spring, Pop et Spring, and Spool Spring
Load-Height Specifications.
Spring
Compression
Poppet
Spool
Length Without
Load
in. (mm)
1.00 ± 0.015
(25.4 ± 0.38)
1.25 ± 0.01
(31.75 ± 0.25)
2.0 ± 0.018
(50.8 ± 0.46)
d. Assembly.
(1) Install poppet (1), poppet spring (2), and
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
compression spring (3) in counterbalance valve
body (4).
Coat preformed packing (5) with lubricating oil
and install on poppet plug (6).
Install poppet plug (6) in counterbalance valve
body (4).
Coat preformed packing (7) with lubricating oil
and install on plug (8).
Install plug (8) in counterbalance valve body (4).
Install poppet orifice plug (9) and pipe plug (10)
in counterbalance valve body (4).
Length Under
Load
in. (mm)
0.75
(19.05)
0.66
(16.94)
1.73
(43.94)
Install spool orifice plug (11)
in spool (12).
Install spool (12), washer (13),
and spool spring (14) in
counterbalance-valve body (4).
Coat preformed packing (15)
with lubricating oil and install
on spool plug (16).
Put spool plug (16) over spool
spring (14) and install spool
plug in counterbalance valve
body (4).
Coat preformed packing (17)
with lubricating oil and install
on poppet plug (18).
Install poppet plug (18) in
counterbalance valve body (4).
Load
Ibs (kg)
135 - 165
(61 - 75)
6.3 - 6.9
(2.86 - 3.13)
204 - 242
(93 - 110)
Coat preformed packing (19) with lubricating oil and install on elbow fitting (20).
Install elbow fitting (20).
Coat preformed packing (21) with lubricating oil and install in counterbalance valve body (4).
16-57
