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WM45H/E PLASTER MORTAR MIXER • OPERATION AND PARTS MANUAL — REV. #0 (09/27/12) — PAGE 23
Main Gear and Drive Pinion Alignment
3. Disconnect the spark plug wire. In addition make sure
the clutch engagement lever is dis-engaged to relieve
V-belt tension.
4. The countershaft and drive pinion are mounted on a
slotted base. To align drive pinion with main gear, loosen
the pillow block mounting bolts and move them until
the necessary alignment has been made. Remember
gears must be paralleled aligned not skewed.
5. Using your hand, slightly move (rock) the drive pulley
back and forth to determine the amount of backlash.
Insert feeler gauge between gears to determine
backlash distance. Backlash should range between
0.007- 0.012 inches (Figure 27).
Figure 27. Drive Pinion and
Main Gear (Backlash)
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 28),
adjust pillow block to correct the problem.
Figure 28. Gear Teeth Alignment
HEAL
CONTACT
TOE
CONTACT
FACE
CONTACT
FLANK
CONTACT
PROPER
CONTACT
MAINTENANCE (MIXER)
Gear Lubrication
The surface of the pinion and main gear (Figure 29) should
be very lightly greased.
Figure 29. Pinion and Bull Gear Lubrication
Figure 30. No Spraying of Water
NOTICE
Re Grease main and pinion gears every 250 hours of
operation. IMPORTANT! avoid over-greasing. Excess
grease will accumulate contaminates and cause
premature wear.
NOTICE
Mixer Cleaning
ALWAYS disconnect the spark plug wire before
cleaning inside of mixing drum.
NEVER pour or spray water (Figure 30) over engine
or electric motor.
For consistent performance, long life and high quality
mixing, thoroughly clean the mixer inside and out at
the end of each day’s operation. To prevent lumps of
dried mortar from forming and contamination of future
batches, do not allow a buildup of materials to form on
the blades or anywhere inside the drum.
SINGLE
PHASE
115/230 VAC
ELECTRIC
MOTOR
ON
OFF
230
115
1.0 HP