
SEBU8213-04 67
Operation Section
Machine Operation
The DRIVE AWAY f
unction allows the operator to
drive the tractor away from a load while the winch
cable is attached to the load. When the winch drive
away switch is
turned on, a spool shifts in the winch
drive away valve in order to open an oil flow passage
in the motor drive from one port to another port.
Then, the thr
ottle spool inside the valve controls
the rate of oil through the valve. This prevents the
drive motor from spinning too fast. This provides a
controlled
release of the winch cable. This will also
provide a maximum ground speed for the tractor of
approximately 3.2 km/h (2 mph).
An optional assembly of three fairlead rollers
or four fairlead rollers is available. The optional
fairlead a
ssemblieswouldbeusedwhenslightside
directional pulls are routinely encountered. The
use of the optional fairlead assemblies will help to
maximize t
he life of the winch case and the life of the
winch cable by eliminating wear.
Warm-Up Procedure for the Winch
Note: War
mupthewinchateachstart-up.
1. Warm up the hydraulic system for the machine.
For more
information, refer to Operation and
Maintenance Manual, “Engine and Machine
Warm-Up”.
2. Use the reel-in and reel-out function to operate the
winch. This will allow the hydraulic oil to circulate
throug
hout the winch.
Note: The winch should be operated under a no-load
condi
tion during warm-up.
The warm-up procedure is recommended at each
start-up and is mandatory when temperatures are
belo
w4°C(40°F).
Using the Winch
Attaching the
Winch Cable
Personal injury or death can result from unexpect-
ed movement of objects. Be sure all persons are
clear of cable and objects before a machine is
winched or moved. A safe distance of at least one
and a half times the working le n gth of the cable
should be maintained. The tail end of a moving ob-
ject ca n throw debris at bystanders.
A minimum of five complete wraps of cable must
be maintained on the winch drum. Do not handle
a load with a winch drum that has less than five
wraps.
Do not operate the winch under loads that exceed
the maximum rated bare drum line pull. If exces-
sive loa
ds are encountered, use a multi-part line
and sheave blocks. Any attempt to exceed the ca-
pacity of one winch is extremely hazardous. Never
try to co
uple two or more tractors together.
NOTICE
If at all possible, always line up the rear end of the
machine with the load, so that the load can be winched
in a straight path. This avoids unnecessary strain and
wear on the side rollers. It also helps to wind the cable
onto the winch drum in level layers.
NOTICE
The winches described in this manual are neither de-
sign
ed nor intended for use or application used in the
lifting or moving of persons.
1. If y
ou are working on a hill, maneuver the machine
above the load and align the rear of the machine
with the object.
2. If you are working on a level surface, align the rear
of the machine with the object.
W
ear leather gloves when handling the winch ca-
ble.