g012776
Figure 34
1.
Row “A”
3.
#1 lift cylinder
2.
Row “B”
5.
Disconnect the hydraulic hoses that are
connected to the back row of the control valve,
Row "B" (
). Drain each line and
cylinder by carefully pulling down the lift arms
until all fluid is pumped out of the hoses and
cylinders and into a drain pan. Reconnect the
hoses to the control valve.
Note:
#1 cylinder is not connected to a lift
arm to aid in draining the cylinder. Extend the
cylinder by using a winch or other pulling device.
6.
Connect the supply and return hoses to the
transport frame control valve.
7.
Fill the tow vehicle hydraulic-fluid reservoir to
the appropriate level using the correct fluid; refer
to the
Operator’s Manual
for your tow vehicle.
8.
Connect the supply and return hose couplers to
the tow vehicle valve couplers.
9.
Start the tow vehicle, raise the lift arms until all
lift cylinders are fully retracted, and then shut
off the tow vehicle.
Note:
Do not manually pry the lift arms up to
retract the cylinders as cylinder damage may
occur.
10.
Check the hydraulic-fluid level in the tow vehicle.
Add approximately 7,571 ml (2 gallons) of the
appropriate hydraulic fluid to raise fluid to the
proper level; ; refer to the
Operator’s Manual
for
your tow vehicle.
11.
Start the tow vehicle and cycle the lift arms
up and down at least 2 full cycles. Check the
hydraulic-fluid level with the lift arms
raised
and
add fluid if needed.
12.
Install the cutting units.
Replacing the Wheel
Bearings
1.
Jack up the wheel being serviced. Support with
jack stand to prevent it from falling.
2.
Remove the hub cap, cotter key, slotted nut, and
washer (
).
g337489
Figure 35
3.
Pull off the wheel and outer bearing cone.
Remove the inner bearing cone and seal from
the hub. A slot in the hub is provided so the
cone and seal can be removed with the bearing
cup. Drive against bearing cup.
4.
Clean the hub with a solvent.
5.
Press the new cups in the hub, being certain
they are fully seated.
6.
Pack the new cones with wheel bearing grease.
Coat bearing journal and adjacent bearings in
hub.
7.
Grease the sealing lip and slip the new seal on
the extended race of the inner bearing cone.
8.
Reassemble in reverse order of disassembly.
9.
Tighten the slotted nut until the bearings bind
slightly when rotating the wheel by hand. Back
off the slotted nut to the nearest cotter pin hole
and secure with a new cotter pin.
23
