Loop Flushing Valve - JLG 660SJ Service And Maintenance Manual

Loop Flushing Valve

REMOVAL
1. Using a 11/16 in internal hex wrench remove plug (1)
and (2).
12
10
8
4
11/16 in
1
27 ft-lb
(37 Nm)
5
1. Plug 6. O-ring
2. Plug 7. Spring
3. Plug 8. Spring
4. O-ring 9. Spring
5. O-ring 10. Washer
Figure 3-23. Loop Flushing Spool
2. Using a 1/4 in hex wrench remove plug (3).
3. Remove O-rings (4, 5, and 6).
4. Using pliers, remove centering springs (7, 8, and 9).
5. Remove spring retaining washers (10 and 11).
6. Remove shift spool (12).
7. Remove orifice poppet (13).
3121298
6
9
11
2
11/16 in
27 ft-lb
(37 Nm)
13
7
5/8 in
3
20 ft-lb (27 Nm)
11. Washer
12. Shift Spool
13. Orifice Poppet
SECTION 3 - CHASSIS & TURNTABLE
INSPECTION
Inspect new O-rings and the sealing area for rust, wear, or con-
tamination. Check springs and poppet for wear.
INSTALLATION
1. Install orifice poppet (13).
2. Install shift spool (12).
3. Install spring retaining washers on springs (10 and 11).
4. Carefully install centering springs (7, 8, and 9).
5. Install new O-rings (6, 4, and 5).
6. Using a 1/4 in hex wrench torque plug (3) to 20 ft. lbs.
(27 Nm).
7. Using a 11/16 in internal hex, torque plugs (2 and 1) to
27 ft.lbs. (37 Nm).
– JLG Lift – 3-19