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TM 10-3930-653-14&P
(5)
Measure outer diameter of piston, and replace,
if worn.
Unit: mm(in)
Checking Item
Standard Value
Service Limit
17.959-17.980
Piston outer diameter
(0.707-0.708)
--
(6)
Measure outer diameter of spool, and
replace, if worn.
Unit: mm(in)
Checking Item
Standard Value
Service Limit
Outer diameter of spool
15.959-15 980
(0.6283-0.6291)
--
(7)
Check difference between outer diameter of each
piston and spool and inner diameter of their
corresponding valve body holes. If unsatisfactory,
replace piston, spool or valve body, as needed.
Unit: mm(in)
Checking Item
Standard Value
Service Limit
Clearance between valve
0.1
body and each spool
(0.004)
(8)
Measure regulator spring for the following
items. If unsatisfactory, replace spring.
Unit: mm (in)
Checking
Item
Inner Spring
Outer Spring
Free
length
118.8 (4.677)
101.5 (3.996)
Setting
length
108 (4.252)
91 (3.583)
Setting
load kg
(Ibs)/mm
(in)
11.9/90 (26.2/3.543)
10.7/90 (23.6/3.543)
9/56 (19.9/2.205)
8.1/56 (17.9/2.205)
Fig. 4-306.
Fig. 4-307.
Fig. 4-308.
Fig. 4-309.
4 - 167
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