11 generator, Every 250 hours, Every 500 hours – JLG 660SJ Service Manual User Manual
Page 106: Generator -56, Every 250 hours -56 every 500 hours -56, Coupling port information table - 2ws -56, Coupling port information table - 4ws -56, 1/2 in. (13 mm)

SECTION 3 - CHASSIS & TURNTABLE
3-56
– JLG Lift –
3121202
3.11 GENERATOR
Every 250 hours
Every 250 hours of operation, check the drive belt for
proper tension.
Every 500 hours
Every 500 hours of operation, service the generator
brushes and slip rings. Hostile environments may require
more frequent service.
Every 500 hours of service, blow out the inside of the gen-
erator. If operating in a hostile environment, clean
monthly.
Table 3-9. Coupling Port Information Table - 2WS
Port
No.
Outlet
Port
Size
Description
Operating
Pressure
PSI (Bar)
Proof
Pressure
PSI (Bar)
1
1
-8
Brake
450 (31)
675 (47)
2
2
-6
2 Speed
4500 (310) 6750 (465)
3
1
-6
Steer
2500 (172) 3750 (259)
4
1
-6
Steer
2500 (172) 3750 (259)
5
2
-6, -16
Drive Reverse
4500 (310) 6750 (465)
6
1
-16
Drive Forward
4500 (310) 6750 (465)
7
3
-8, -6
Case Drain
250 (17)
375 (26)
Table 3-10. Coupling Port Information Table - 4WS
Port
No.
Outlet
Port
Size
Description
Operating
Pressure
PSI (Bar)
Proof
Pressure
PSI (Bar)
1
1
-8
Brake
450 (31)
675 (47)
2
2
-6
2 Speed
4500 (310) 6750 (465)
3
1
-6
Steer
2500 (172) 3750 (259)
4
1
-6
Steer
2500 (172) 3750 (259)
5
2
-6, -16
Drive Reverse
4500 (310) 6750 (465)
6
1
-16
Drive Forward
4500 (310) 6750 (465)
7
3
-8, -6
Case Drain
250 (17)
375 (26)
8
1
-6
Steer
2500 (172) 3750 (259)
9
1
-6
Steer
2500 (172) 3750 (259)
1/2 in.
(13 mm)