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MQ-WHITEMAN FS2 CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #2 (11/08/01) — PAGE 31
FS2 CONCRETE SAW — MAINTENANCE
Raise/Lower Height Adjustment
The FS2 is equipped with an Raise/ Lower assembly that is
supported by the following:
l
ACME Screw
l
Precision Thread
l
Depth Gauge Bearing
l
Depth Gauge Pointer
l
Tube Height Adjustment
Setting The Height Of The Depth Gauge Pointer
Perform the following to set the height of the Depth Gauge Pointer:
1. Place the saw on a level working surface.
2. Remove the rear panel cover, see page 46, item 9.
3. Install an appropriate new diamond blade on the saw and
take reference to the diameter.
4. Lower the blade until flush contact is made with the level
surface.
5. Loosen the two hex nuts, item 18, that tighten against the
upper and lower rod ends, item 19.
6. Loosen the hex nut, item 13, that secures the plunge ball, item
12, depth lock against the adjustment tube.
7. Loosen (counter-clockwise) the plunge ball with an allen
wrench. This will unlock the plunge ball from the ACME
screw, item 9.
8. Set the blade height indicator to "0" (relative to the diameter
of the blade and depth scale). See Figure 6, "Concrete Saw
Console".
10. Remove the upper pan-head screw, item 20, to enable the
rod end adjustments.
11. Adjust the rod ends as required to ensure that the throw of
both rod ends and threaded rod, item 14, support the "0"
position of the depth gauge located on the console.
12. Tighten the plunge ball, item 12, to the full depth against the
ACME screw, item 9.
13. Unscrew the plunge ball, item 12, 1 FULL TURN (counter-
clockwise).
14. Tighten the hex nuts, item 13, against the "Adjustment Tube",
item 10, to lock the plunge ball in place.
V-Belt Tension Check
Check tension after first day of operations, then weekly/or 25
hours. Replace as required (see Figure 14). NEVER operate
with less than 3 belts.
The FS2 is equipped with (3) premium 3VX V-belts (Figure 14)
that provide optimum torque transfer.
The height adjustment of the FS2 has been factory set utilizing
precision standards.
Reference Manual Raise and Lower Assembly on page 52
unless otherwise noted.
The V-Belt adjustment of the FS2 has been factory set utilizing
precision standards. For V-Belt adjustments only, see page 23,
V-belts Alignment Tensioning.
V-Belt Replacement
To replace the entire set of V-belts (3) perform the following
procedure:
Figure 26. V-Belts
1.
Reference pages 38 (Blade Shaft Assembly), 40 (Engine
Mount Assembly) and 42 ) Pointers and Covers Assembly).
2. Loosen the tension on the V-Belts.
3. Remove the Belt Cover, item 4, page 42.
4. Loosen the Carriage Bolts, item 11, page 40.
5 Loosen the Hex Head Cap Screws, item 12, page 40.
6. Rotate the engine down to provide slack in the V-Belts.
7. Loosen shaft bearing(s), hex head cap (shaft bearing) screws
item 11, page 38.
8. Remove the (2) hex head cap screws, item 11, page 38, that
support the ‘pulley-side’ blade shaft bearing.
9. Orient the blade shaft so the belt(s) to be replaced can slide
off the blade shaft pulley and engine pulley.
10. Orient the replacement belt(s) around the blade shaft pulley
and engine pulley.
11 Replace and tighten the (2) hex head cap shaft bearing
screws, item 11, page 38.
V-Belt Tension
1.
Adjust carriage bolts, item 11, page 40, until the proper belt
tension is achieved.
2. Tighten the (2) hex head cap screws, item 12, page 40.
3. Replace the belt cover, item 4, page 42.
The saw must be operated with
all (3) V-belts, and must be ad-
justed collectively and properly to be effective