Gear Train - Allied Systems H6H Service Manual

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Gear Train (See Fig. 1-7)
The tractor pump drives the hydraulic motor. Torque from
the hydraulic motor is transmitted through a holding brake,
planetary speed reducer and two gear reductions to the
drum.
A dental clutch with splines engages the drum pinion gear
and the intermediate gear. The operator can disengage
the dental clutch with an electric switch to engage the
FREESPOOL feature.
A drum gear engages the drum pinion gear and is
connected to the drum. When power is applied to the
gear train, the drum will rotate in the forward or reverse
direction. The drum adapter connects the drum to the drum
gear. The other side of the drum runs on roller bearings
held by the drum shaft. The drum shaft is connected to
the winch case.
BRAKE-ON
INTERMEDIATE
GEAR WITH
FREESPOOL
Oil Supply
LINE-IN
Figure 1-8 Rotation Torque Transfer
DRUM GEAR
DRUM
PINION
GEAR
PLANETARY
REDUCER
BRAKE
Figure 1-7 Gear Train
Oil Return
Section 1
HYDRAULIC
MOTOR
Oil Supply
Oil Return
LINE-OUT
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