Servicing The Traction Drive Chains - Toro 22304 Operator's Manual

Maintenance
POTENTIAL HAZARD
Hydraulic fluid escaping under pressure
can penetrate skin and cause injury.
WHAT CAN HAPPEN
Fluid accidentally injected into the skin
must be surgically removed within a few
hours by a doctor familiar with this form of
injury or gangrene may result.
HOW TO AVOID THE HAZARD
Keep body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.
Use cardboard or paper to find hydraulic
leaks, never use your hands.
Servicing the Traction Drive
Chains
Checking the Tension
Check the drive chain tension before using the
traction unit for the first time and every 50 hours of
use thereafter.
The drive chains should have about 1–1/2 to 2–1/2
inches (3.8 to 6.35 cm) of slack between the bottom
of the chain guard and the bottom chain span when
the top chain span is pulled tight. Use the following
procedure to check the tension:
1. With the bucket installed, lower it into the
ground until the front tires are off of the ground.
2. Stop the engine and remove the key.
3. Turn the front wheel forward on one side of the
traction unit until the top span of the drive chain
is tight.
32
4. Measure the distance between the bottom of the
chain guard and the lower chain span (Fig. 23).
If the slack in the chain is not within 1–1/2 to
2–1/2 inches (3.8 to 6.35 cm), adjust the tension
(refer to Adjusting the Tension).
1
2
Figure 23
1. Chain guard
2. Bottom span of the chain
5. Repeat steps 3 and 4 for the other drive chain.
6. Start the engine and raise the bucket to return the
front wheels to the ground.
Adjusting the Tension
1. With the bucket installed, lower it into the
ground until the front tires are off of the ground.
2. Stop the engine and remove the key.
3. Loosen the nuts securing the axle retaining
bracket (Fig. 24).
4. Loosen the jam nut on the chain tensioning bolt
and loosen the bolt (Fig. 24).
3
m–3962
3. 1–1/2" to 2–1/2"