page 28 — WM70SH5C/WM70SH8C Mixer • operaTion and parTS Manual — rev. #0 (06/07/11)
inSpeCT TooTH ConTaCT BeTWeen Main gear
and drive pinion
1. Coat 3 or 4 teeth at 3 different positions on the main
gear with yellow paint.
2. Rotate the drive pulley in both directions.
3. Inspect the tooth pattern.
4. If gear teeth are not contacting properly (Figure 29),
adjust pillow block to correct the problem.
Figure 29. Gear Teeth Alignment
gear luBriCaTion
The surface of the pinion and main gear (Figure 30) should
be very lightly greased.
Figure 30. Pinion and Bull Gear Lubrication
HEAL
CONTACT
TOE
CONTACT
FACE
CONTACT
FLANK
CONTACT
PROPER
CONTACT
MAIN
GEAR
DRIVE
PINION
NOTICE
Grease main and pinion gears every 250 hours of
operation. avoid over-greasing. Excess grease will
accumulate contaminants and cause premature wear.
MaintenanCe (Mixer)
TireS/WHeelS/lug nuTS
Tires and wheels are a very important and critical
components of the trailer. When specifying or replacing
the trailer wheels it is important the wheels, tires, and axle
are properly matched.
Tires Wear/inflation
Tire inflation pressure is the most important factor in tire
life. Pressure should be checked cold before operation.
do noT bleed air from tires when they are hot. Check
inflation pressure weekly during use to insure the maximum
tire life and tread wear.
Table 7 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
Warning
do noT attempt to repair or modify a wheel.
do noT install an inter-tube to correct a leak
through the rim. If the rim is cracked, the air
pressure in the inter-tube may cause pieces
of the rim to explode (break-off) with great force and can
cause serious eye or bodily injury.
Warning
alWaYS wear safety glasses when removing
or installing force fitted par ts. Failure to
comply may result in serious injury.