Multiquip EM90P - Manual (Page 30)

PAGE 30 — EM-90 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #2 (12/11/06)
EM-90 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Drum Head Seals
On each end of the mixing drum there is a drum head
containing self-adjusting graphite seals. These seals consist
of packing rings, split gland and spring activated adjusters.
A properly maintained seal prevents material from working
around the shaft, causing excessive wear. The following is
the suggested procedure of maintenance for protection of
the paddle shaft.
1. Keep drum head clean of material build up so the spring
adjusters are free to work.
2. As the seals naturally wear, material will seep from the
drum head. Tighten the adjusting nuts equally until a
slight pressure is felt (Figure 27). The seals are now
tight. This procedure should be done periodically as the
seals leak.
Figure 27. Drum Seal Adjusting Nuts
3. Once the pressure plate touches the drum, its time to
replace the graphite seals (Figure 28).
Figure 28. Replacing Drum Seals
Drum Bearing Bracket Lubrication
There is 1 set of drum bearing brackets (Figure 29) 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 multi-purpose grade
grease.
Figure 29. Grease Fittings (Dumping Mechanism)
GREASE FITTING
AND CAP
DRUM BEARING
BRACKET
GREASE FITTING
AND CAP
20
Failure to lubricate the drum bearing grease fittings
periodically will cause the dumping mechanism to stiffen,
making the mixing drum hard to dump.
CAUTION CAUTION CAUTION CAUTION CAUTION
Lubricating the
Grease Fittings
Ball Socket and Clamp Face Maintenance
1. If the towing vechicle is equipped with a ball socket,
smear socket periodically with multi-purpose grease.
This will keep the ball socket well lubricated.
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.