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MQ-WHITEMAN FS2/FS2SP CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #2 (06/26/06) — PAGE 29
3. Push the console engine ON/OFF button to the “
OFF
”
position (Figure 5, item 1).
4. Set the engine ON/OFF switch to the “
OFF
” position
(Figure 6, item 3).
5. Place the water valve (Figure 5, item 3) in the “
OFF
” position
(as required).
WARNING
Engine components can generate extreme
heat.
z
Determining WET or DRY cutting
z
Material to be Cut
z
Type of Saw Being Used
z
Horsepower of Saw
z
Hardness Characteristics of the Material
z
Performance Expectations
6. Align the saw along the cut line utilizing the front and rear
pointers.
7. Slowly lower the diamond blade onto the cut line by cranking
the Raise/Lower handle clockwise. When the blade “touches”
the cutting surface, “zero-out” the depth feed gauge (Figure
5, item 12) by rolling the depth until “0” is lined up with the slip
mark. Slowly continue to lower the blade into the cut until the
desired depth is achieved.
8. Set the sawing depth and saw only as job conditions and
specifications require. Deep sawing is wasteful to the life of
the blade and can negate the effectiveness of the water
misting system to suppress dust. The preferred method of
sawing is to “step cut” in increments of 2” (51 mm). Step
cutting provides the optimum opportunity for the blade to cut
fast and last it’s longest.
9. The rotation of the blade creates a tendency for the saw to
slightly pull in a particular direction. To ensure a straight line
of sawing, apply pressure against the appropriate handle
bar as you slowly advance the saw forward.
DO NOT force
the blade into the cut any faster than its designed
tendency is effective cut and remove the material.
WARNING
If the engine stalls for any reason during
sawing, raise the blade out of the cut
before restarting.
10. The operator must recognize and adhere to the optimum
speed that the saw advances while sawing. DO NOT
force
the saw in the cut
. Observe the engine tachometer from time
to time to get the feel for a smooth sawing pace relative to
RPM.
11. Factors for sawing economy:
z
Type of Blade
z
Depth of Cut
z
Sawing Speed
z
Characteristics of the Material Being Cut
z
Wet or Dry Sawing
Diamond Blades and Blade Speed
1.
Diamond sawing consist of cutting
WET
(using water to cool
the blade) or
DRY
(using the circulating air to cool the blade).
2. Selecting the diamond blade
type
and
grade
defines how
the blade will perform both in cutting speed and blade life.
3. Selection of the proper diamond blade consists of:
Blade Speed
1. A diamond blade’s performance is directly connected to
specific peripheral (rim) speeds.
2. The following shaft rotational speeds have been factory set
to ensure optimum blade performance.
z
FS2/FS2SP 14” Capacity-3,200 RPM.
z
FS2/FS2SP 20” Capacity-2,600 RPM.
WARNING
Operating saw blades at rotational speeds
greater than those specified by the manufac-
ture can cause blade damage, and may in-
jure the user or others in the operating area.
Finishing A Cut
1. Raise the blade out of the cut by cranking the Raise/Lower
handle counter-clockwise
(Figure 5, item 10). Raise the
blade high enough out of the cut to clear the surface and allow
the saw to be maneuvered.
2. Move the engine throttle lever to the idle (
SLOW
) position
(Figure 20).
FS2/FS2SP CONCRETE SAW — OPERATION