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MQ-WHITEMAN FS2/FS2SP CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #2 (06/26/06) — PAGE 19
UNDER CARRIAGE SYSTEM
A jig welded heavy steel gauge under carriage assembly supports
the saw in tracking, pivoting and stabilization. A 3/4" diameter rear
axle supports two solid rubber (8" x 2-1/2" x 1") cast hub wheels with
roller bearings, grease fittings and locking collars. A 3/4" diameter
front axle supports two solid rubber (5" x 2" x 3/4") cast hub wheels
with roller bearings, grease fittings and locking collars. The assembly
pivots about two rocker blocks with bushings. See page 40.
BLADE DRIVE SYSTEM
An innovative blade shaft assembly has been specifically designed
to support the optimum distribution of torque from the engine shaft to
the blade shaft, and to ensure minimal vibratory conditions on the
tips of the shaft.
Balanced engine & blade shaft pulleys are connected to their
respective shafts, and four V-belts connect the engine pulley to the
blade shaft pulley. The 1- 1/4" diameter blade shaft is supported by
two self-aligning pillow block bearings that are uniquely positioned
on the most outboard portion of the reinforced frame.
The combination of pulley and blade shaft bearing positioning
ensures minimal vibration & flutter to the ends of the blade shaft.
The blade drive system has been designed for left and right hand
cutting. See page 44.
BLADE GUARD ASSEMBLY
The FS2/FS2SP comes standard with either a 14" or 20" hinged
two-piece, heavy steel gauge blade guard.
Both blade guards provide zinc plated, fluted floodwater manifold
assemblies that supply optimum volume and dispersal of water to
both sides of the diamond blade for wet cutting. The sizable (6")
fluted floodwater tubes resist clogging and are easily removed for
maintenance.
The spray pattern and orientation, in conjunction with the design of
the blade guard, provides exceptional dust suppression when cutting
dry, and may also be desired when the job site requires minimal use
of water.
The 14" blade guard is designed with an independent aerosol
misting system to meet the challenges of minimal water sawing
operations. The spray pattern and orientation of the two removable
jet nozzles, in conjunction with the design of the 14" blade guard,
provides exceptional dust suppression.
A quick disconnect hose and blade guard are easily removed for
fast blade changes, and easily seats itself on the chassis bayonet
fitting. The blade guard may be oriented for left or right hand cutting.
See pages 54 and 56.
WATER SYSTEM
All FS2 saws provide a water direction system to provide cooling
water to the diamond blade. This system consist of : a standard
"garden hose" valve that connects the water source (via hose) to the
saw, an ON/OFF console water switch, water hose with quick
disconnect manifold fittings, and either a 14" or 20" blade guard.
Both the 14" and 20" blade guards are designed with two 6" fluted
water tubes to direct floodwater to the diamond blade. The 14" blade
guard incorporates an independent water misting system that utilizes
specifically positioned aerosol spray nozzles to support dust
suppression when sawing in minimal water environments.
The misting spray (approximately 5 gallons/hour) requires a 35-45
psi water pressure for effective results.
CONSOLE
An ergonomically designed control console allows the operator to
easily understand and/or operate the adjustable handlebars, Raise/
Lower Crank Handle, Tachometer/Hourmeter, ON/OFF Water
Valve, Depth Feed Gauge, and Emergency Engine ON/OFF Switch.
Additionally, for electric start and self-propelled models, the console
also provides starting, power control and forward/reverse controls.
MECHANICAL RAISE/LOWER SYSTEM
A positive locking mechanical raise and lower screw feed assembly
supports elevation cycling operations. A crank raise/lower handle
is located on the console with "clockwise" rotation providing lowering
action, and "counter-clockwise" rotation providing raising action.
An ACME precision screw and thread assembly provide accurate
travel; while a spring loaded plunge ball system ensures positive
height position locking.
An adjustable depth gauge assembly is synchronized with raise/
lower handle rotations to accurately depict depth feed. See Table 4
for blade selection with respect to depth of cut. Blade orientation is
referenced on the console's depth feed gauge.
FS2/FS2SP CONCRETE SAW — GENERAL INFORMATION
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