SECTION 4 - COUNTERSHAFT, CTRSHAFT BOX & SHEAVE ASSEMBLIES
4-2
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
Figure 4-1 End Float — V-Belt Drive
f. Mount the flinger housing, MP1000, or
the countershaft box cover, MP800, on
the countershaft box.
g. Slide the sheave bushing onto the
countershaft until it is tight against the
oil flinger. Then tighten the bushing
clamp screw. (For a safety set collar,
mount it on the countershaft and tight
against the oil flinger.)
2. Coat the large diameter O-ring (which can
be found in one of the packing boxes) with
clean grease and stretch it over the machined
diameter at the pinion end of the
countershaft box. Refer to Figures 4-2, 4-3
and 4-4. This O-ring prevents oil leakage
from between the countershaft box and main
frame.
3. There is also a flexible, plastic-like wear
ring that is to be installed in a groove on the
countershaft box. The wear ring eliminates
fretting that can occur between the
countershaft box and main frame.
This wear ring is split. Place the wear ring in
the groove in the pinion end of the
countershaft box and hold the ring in
position by gluing each end of split to
countershaft box. Using Eastman 910
adhesive (or equivalent). There may be a
small gap at split or one end may have to be
trimmed to suit. Refer to Figure 4-4.
If there is no glue available then tape the
ends with masking tape to hold the wear ring
in place. Do not use electrical or duct tape.
Callout Description Callout Description
1 Inner countershaft bushing 7 Sheave bushing
2 Countershaft 8 Clamp screw
3 Outer countershaft bushing 9 Tight
4 Oil flinger 10 No clearance (tight)
5 Sheave key 11
Measure end float here.
1.5 mm (0.060") to 0.8 mm (0.030")
6 Set collar (direct drive)
1 2
3
4
5
6
7
8
9
10
11
Always use heavy insulated gloves when
handling heated parts.
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