WM-90 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Grease Fittings (Zerk) Maintenance (Electric Motor)
1.There are two grease (Figure 34) fittings at each end of the electric motor that will require lubrication. Lubricate these fittings about every 16 months.
2.Use Poleyrex EM (Exxon Mobil) or equalivant lubricant. Clean grease fitting, apply grease gun to fitting (1/2 shot). Remember too much grease or injecting grease too quickly can cause premature bearing failure. Slowly apply the recommended amount of grease, taking a miniute or so to apply.
TiresWear/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 pres- sure weekly during use to insure the maximum tire life and tread wear.
| WARNING | Eyesight Hazard |
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ALWAYS wear safety glasses when removing or installing force fitted parts. Failure to comply may result in serious injury.
Table 9 (Tire Wear Troubleshooting) will help pinpoint the causes and solutions of tire wear problems.
Figure 34. Grease Fittings Electric Motor
TABLE 9.TIRE WEARTROUBLESHOOTING
Tires/Wheels/Lug Nuts
Tires and wheels are a very important and critical compo- nents of the trailer. When specifying or replacing the trailer wheels it is important the wheels, tires, and axle are prop- erly matched.
WARNING DamagedWheels
DO NOT attempt to repair or modify a wheel. DO NOT install an
WEAR PATTERN | CAUSE |
Center Wear | Over Inflation |
Edge Wear | Under Inflation |
| Loss of chamber |
Side Wear | or overloading. |
Toe Wear | Incorrect |
Cupping | |
Flat Spots | Wheel lockup & |
| tire skidding. |
SOLUTION
Adjust pressure to particular load per tire manufacturer.
Adjust pressure to particular load per tire manufacturer.
Make sure load does not exceed axle rating. Align wheels.
Align wheels.
Check bearing adjust- ment and balance tires.
Avoid sudden stops when possible and adjust brakes.
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