Section 1
1 - 29
Sequence of Operation, High-Performance Winch -
BRAKE-OFF
The operator depresses the
BRAKE-OFF
switch. Pilot
control pressure communicates in the logic control mani-
fold to release the brake, open the
BRAKE-OFF
valve,
and shift the hydraulic motor to
HI-SPEED
displacement.
Pilot control oil fl ow also saturates the inlet B port of the
motor.
The operator drives away from the load, and the entire
gear train rotates as wire rope spools off the drum. The
hydraulic motor effectively operates as a pump and circu-
lates oil from the B port to A port through the
BRAKE-OFF
manifold. An orifi ce in the
BRAKE-OFF
manifold provides
a resistance to fl ow across the hydraulic motor, and there-
fore limits the rotating velocity by increasing the tractive
effort required by the tractor to drive away from the load.
Summary of Contents for Allied H6G Series
Page 8: ...vi Notes...
Page 25: ...Section 1 1 17 Intentionally Blank...
Page 26: ...General 1 18 Figure 1 19 Sequence of Operation BRAKE ON...
Page 28: ...General 1 20 Figure 1 20 Hydraulic System LINE IN...
Page 30: ...General 1 22 Figure 1 21 Hydraulic System HI SPEED LINE IN...
Page 32: ...General 1 24 Figure 1 22 Hydraulic System LINE OUT...
Page 34: ...General 1 26 Figure 1 23 Hydraulic System HI SPEED LINE OUT...
Page 36: ...General 1 28 Figure 1 24 Hydraulic System BRAKE OFF...
Page 38: ...General 1 30 Figure 1 25 Hydraulic System FREESPOOL...
Page 40: ...General 1 32 Notes...
Page 41: ...Section 1 1 33 Figure 1 26 H6GH B Schematic High Performance Winch H6GH B...
Page 42: ...General 1 34 Figure 1 27 H6GH E Schematic High Performance Winch H6GH E...
Page 43: ...Section 1 1 35 H6GH J Figure 1 28 H6GH J Schematic High Performance Winch...
Page 44: ...General 1 36 H6GT E Figure 1 29 H6GT E Schematic Rescue Winch...
Page 51: ...Section 2 2 7 Notes...
Page 52: ...Troubleshooting 2 8 Notes...
Page 60: ...Service 3 8 Notes...
Page 83: ...Section 4 4 23 12 Remove the spool asssembly...
Page 119: ...Section 4 4 59 Notes...
Page 120: ...Repairs 4 60 Notes...
Page 121: ......