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5.2.5 WIPER SPACING AND REPLACEMENT
Each machine is equipped with wipers on the mixing
elements to scrape the build-up from the inside of the
drum. After extended use, they will wear. They need to be
adjusted so they clean the sides of the drum. To adjust or
repair, follow this procedure:
1.
Thoroughly clean the inside of the drum to remove all
the build-up.
2.
Open hood and disable power source by unplugging
power cord or removing spark plug wire.
3.
To adjust wipers, loosen mounting bolts.
4.
Tap or slide wipers to 1/16 inch (1.5 mm) from the
drum.
5.
Tighten mounting bolts to their specified torque.
6.
If there is no more adjustment available, remove old
wipers.
7.
Replace wipers.
8.
Set at 1/16 inch (1.5 mm) from the drum.
9.
Tighten mounting bolts to their specified torque.
Paddles
Spiral
Fig. 34 WIPERS
5.2.6
GEARBOX OIL CHANGING
The gearbox transmits power from the belt/pulley drive to the
mixing elements in the drum. As the gearbox breathes dur-
ing its warming and cooling cycle, contaminants can enter
through the breather. Change the oil annually to remove
these contaminants
To change the oil, follow this procedure:
1.
Open the hood.
2.
Disable the power source by unplugging the power cord
or removing the spark plug wire.
3.
Place a pan under the drain plug.
4.
Remove the drain, level and fill plugs and allow the oil to
drain for 10 minutes.
5.
Clean the drain plug.
6.
Install the drain plug and tighten.
7.
Add 1 quart of SAE 80W90 gear oil through the fill plug.
8.
When the oil in the gearbox just fills the threads of the
level plug, the gearbox is at the proper level.
9.
Install the level and fill plugs and tighten.
IMPORTANT
If the air passage
through the breather
is plugged, soak the
breather in solvent for
an hour and blow out
with an air hose.
43
a Drain
Fig. 35 GEARBOX PLUGS
IMPORTANT
Allow the gearbox to cool before
changing oil. Hot oil can cause
burns if it contacts exposed skin.
Draining works best if the oil is
warm.
NOTE
There is a hole in the top of the
shroud (with a rubber plug) for
filling the gearbox.
c
b
a
Level c Fill
b
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