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Selecting a Traction Unit
The capabilities of the machine may vary depending
on the size and type of traction unit.
Traction Unit
Requirements and Recommendations
Function
Hydraulic
The traction unit must have a rear-attachment
system
hydraulic system with an open center auxiliary
hydraulic valve.
For best results, use a traction unit with a fixed
displacement hydraulic pump with a power
output of 138 bar @ 38 L/min (2,000 psi @ 10
gal/min). Performance will be reduced if the
pump output is less.
Engine power
For best results, use a traction unit with at
least 45 hp and 4-wheel drive. A traction unit
with less than 45 hp will limit where you can
go and how much payload you can deliver.
For example, a 27 hp traction unit can tow a
fully loaded machine over flat terrain, but not
on steep hills.
Traction
A 4-wheel-drive vehicle improves performance
system
on hills.
Towing
When fully loaded, the machine can weigh up
capacity
to 7,000 kg (15,432 lb). Do not go beyond the
limitations of the traction unit.
The traction unit must have an adequate hitch
and functional brakes.
Ensure that the traction unit has enough power
and traction to pull a full load. If not, reduce
the load size.
With a smaller traction unit, you may need
to reduce the payload to 2 m3 (2.6 yd3) of
material when spreading in difficult terrain.
Another option is to tow a fully loaded machine
to a spot near the job and then load smaller
machines from the machine to complete the
job.
Connecting the Machine to
the Traction Unit
1.
Chock front and back of the tires.
2.
Adjust the hitch height by turning the jack
handle; keep the machine level.
Important:
To balance the tongue weight,
raise or lower the rear of the machine by 10
to 15 cm (4 to 6 inches). Raising the machine
increases the risk of tipping.
3.
Connect the hitch of the machine to the draw
bar of the traction unit using a 25 mm (1 inch)
diameter safety approved hitch pin and safety
clip (not supplied).
4.
Slowly raise the jack.
5.
When the full tongue weight of the machine has
transferred the draw bar of the traction unit, stow
the jack; refer to
6.
Stow the rear-jack leg; refer to
Rear-Jack Leg (page 26)
7.
Route the 2 hydraulic hoses from the machine
to the traction unit.
Important:
Do not allow the hydraulic hoses
to drag on the ground when operating the
machine. Avoid locations where they could
become pinched or cut.
8.
Connect the 2 hydraulic hoses to the traction
unit quick-connect fittings
Facing the front of the machine, connect the left
hose to the pressure side and the right hose to
the return side.
Important:
The return hose has an in-line
one-way check valve. The arrow on the
check valve should face the traction unit
return connector.
Note:
You may need to relieve the pressure in
the hydraulic hoses of the machine connecting
them to the traction unit.
21
Stowing the Jack (page
Stowing the
(Figure
20).
27).
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