Multiquip WM45HCE_rev_0 - Manual (Page 21)

WM45HCe pLaSTeR MORTaR MIXeR • OpeRaTIOn and paRTS ManuaL — Rev. #0 (02/04/13) — page 21
Main gear and drive pinion alignment
1. Disconnect the spark plug wire. In addition make sure
the clutch engagement lever is dis-engaged to relieve
V-belt tension.
2. 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.
3. 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 23).
Figure 23. 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 24),
adjust pillow block to correct the problem.
Figure 24. 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 25) should
be very lightly greased.
Figure 25. Pinion and Bull Gear Lubrication
Figure 26. 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 26) over engine.
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.