|
| |
TM 5-2420-222-34
14-13.
BACKHOE RELIEF VALVES MAINTENANCE (Con’t).
c.
REPAIR
Restore damaged valve cap (3 or 6) threads using pipe threading or screw threading set.
d.
ASSEMBLY
1.
Coat two new preformed packings (4) and new preformed packing (5) with hydraulic fluid and install in valve cap
(3).
2.
Aline match-marks and install boom valve (8) in place on valve cap (3).
3.
Coat two new preformed packings (4) and new preformed packing (5) with hydraulic fluid and install in boom valve
(8).
4.
Aline match-marks and install bucket valve (7) on boom valve (8).
5.
Coat two new preformed packings (4) and new preformed packing (5) with hydraulic fluid and install in bucket
valve (7).
6.
Aline match-marks and install valve cap (6) on bucket valve (7).
7.
Install five capscrews (1) and new lockwashers (2) in two valve caps (3 and 6), boom valve (8), and bucket valve
(7). Torque capscrews to 20-25 lb.-ft. (27-34 N•m).
FOLLOW-ON TASKS:
•
Install loader control valve assembly (see TM 5-2420-222-20).
TA701600
14-73
|
