STOW MS-93 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Ball Socket and Clamp Face Maintenance
1.If the towing vechicle is equipped with a ball socket, smear socket periodically with
2.Periodically oil pivot points and clamp face surfaces of coupler with SAE 30 WT. motor oil.
3.When parking or storing your mixer. Keep the coupler off the ground so dirt will not build up in the ball socket.
Drum Head Seals
There is 1 set of drum head seals (Figure 26) that will require lubrication. Lubricate the grease fitting for each drum seal every 40 hours of operation using any grade lithium base grease. Apply grease until visible inside of mixing drum (over grease). This will purge seal system of contamination.
Figure 26. Grease Fittings (Drum Head Seals)
Drum Bearing Bracket Lubrication
There is 1 set of drum bearing brackets (Figure 27) that will require lubrication. These brackets are intended to make the drum rotate freely. Lubricate the grease fitting for each drum bearing bracket every month or when the drum becomes difficult to position using
| CAUTION | Lubricating the |
| Grease Fittings | |
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Failure to lubricate the drum bearing grease fittings periodically will cause the dumping mechanism to stiffen, making the mixing drum hard to dump.
Countershaft Bearing Lubrication
There is 1 set of countershaft bearings (Figure 28) that will require lubrication. Lubricate the grease fitting for each countershaft bearing every 40 hours of operation using any grade lithium base grease.
Figure 28. Grease Fittings (Countershaft)
Wheel Bearings
1.After every 3 months of operation, remove the hub dust cap and inspect the wheel bearings (Figure 29). Once a year, or when required, disassemble the wheel hubs remove the old grease and repack the bearings forcing grease between rollers, cone and cage with a good grade of high speed wheel bearing grease (never use grease heavier than 265 A.S.T.M. penetration (“No. 2.”)
Figure 29. Wheel Hub and Bearings
Figure 27. Grease Fittings (Dumping Mechanism)
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