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MQ-WHITEMAN FS3SP CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #0 (07/15/02) — PAGE 33
FS3SP CONCRETE SAW — MAINTENANCE
Blade Shaft Bearing Replacement
The FS3SP is supported by “tapped base lock collar (w/set
screw)’ self-aligning blade shaft bearings. These heavy duty
bearings support the 1-1/4 blade shaft, and have grease (zerk)
points (Figures 28 and 29) conveniently located for service.
Figure 28. Right-Side Shaft Bearing
1. Reference pages 46 (
Blade Shaft Assembly
) and
72 (
Engine Mount Assembly
).
2. Its recommended to replace both left & right hand bearings
collectively.
Figure 29. Left-Side Shaft Bearing
3.
To loosen the tension on the three V-Belts perform the
following:
z
Remove the
Belt Guard
, item, page 50, item 17
(Pointers and Covers Assembly)
z
Loosen the
Carriage Bolt
, page 48, item 4 (Engine
Mount Assembly).
z
Loosen the
Hex Head Cap Screws
, page 48, item 7
(Engine Mount Assembly).
z
Rotate the engine down to provide slack in the V-Belts
Replacement of the Blade Shaft Bearings
4. Perform the following to replace the blade shaft bearings:
z
Remove
blade flanges
(page 46, items 7 and 8,
Blade
Shaft Assembly
) as required to permit the Shaft Bearing(s)
to slide off the blade shaft.
z
Loosen/remove
shaft bearing(s)
hex head cap screws
,
page 44, item 11.
z
Loosen
set screw
on the blade shaft bearing collar.
z
Slide “old” bearing(s) off the blade shaft and replace with
“new” bearing(s)- grease (zerk) fitting pointing forward, and
the lock collar oriented to the “right" as you face the saw.
5. Loosely bolt the bearing(s) into place on the saw frame, then
ensure the alignment by referencing past bearing position-
ing.
6. Tighten the hex head cap screw, page 46, item 11 to secure
the shaft bearing (s) to the frame.
7. To complete the re-installation process, reverse the order of
the above mentioned steps. For V-belt adjustmemt and
tensioning see pages 32 (Figures 26 and 27) and page
34(Figure 30).
W — TRANSMISSION ASSY.