TM 5-3805-261-34
HYDRAULIC SYSTEM MAINTENANCE.
10-14.
Scarifier Check and Relief Valve. (Sheet 4 of 5)
ASSEMBLY
1.
Lubricate outer diameters of new
preformed packings (13 and 12)
with clean lubricating oil.
2.
Install new preformed packings
(13 and 12) on plug (11, Figure
10-120).
PRESSURE
PART NO.
THICKNESS
CHANGE
6J8696
0. 048 INCH
670 PSI
5J6153
0. 007 INCH
95 PSI
3K6116
0. 031 INCH
430 PSI
3.
Install washers
(17), spring
(16), shim(s) (15) and valve (14)
in body (18, Figure 10-119). Use
washers (17) and shim(s) (15) as
required to obtain relief valve
pressure setting of 2000 psi at
flow rate of 2. 5 gallons per
minute. Refer to chart.
4.
Install items 13 thru 11 as an
assembly.
5.
Using dry ice or freezer, reduce
temperature of seat (10) and
install using alignment punch and
hammer until seated against
counterbore in body (18).
6.
Position piston (9) in seat (10)
in body (18).
7.
Using dry ice or freezer, reduce
temperature of seat (8) and
install using alignment punch and
hammer until seated against
counterbore in body (18). Check
for full movement of piston (9)
through seats (10 and 8).
Go to Sheet 5
10-83
