Under Carriage System, Blade Drive System

FS3SP CONCRETE SAW — GENERAL INFORMATION

UNDER CARRIAGE SYSTEM

A jig welded heavy steel gauge under carriage assembly supports the saw in tracking, pivoting and stabilization. A 1" diameter rear axle supports two solid rubber (10" x 2.75") cast hub wheels with roller bearings, grease fittings and locking collars. A 5/8" diameter front axle supports two solid rubber (5" x 2") cast hub wheels with roller bearings, grease fittings and locking collars. The assembly pivots about two rocker blocks with bushings. See page 42.

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 3VX V-belts connect the engine pulley to the blade shaft pulley. The 1- 1/4" diameter blade shaft is supported bytwoself-aligningpillowblockbearingsthatareuniquelypositioned 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 46.

BLADE GUARD ASSEMBLY

The FS3SP offers a 14" or a 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 thebladeguard,providesexceptionaldustsuppressionwhencutting dry, and may also be desired when the job site requires minimal use ofwater.

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 56.

WATER SYSTEM

All FS3 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 a 14" or 20" blade guard.

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 islocatedontheconsolewith"clockwise"rotationprovidinglowering 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.SeeTable 4 for blade selection with respect to depth of cut. Blade orientation is referenced on the console's depth feed gauge.

TABLE 4. BLADE SELECTION

Diamond Blade	Depth of Cut
Diameter (In.)

12"	3-5/8"

14"	4-5/8"

16"	5-5/8"

18"	6-5/8"

20"	7-5/8"

PAGE 20 — MQ-WHITEMAN FS3SP CONCRETE SAW — PARTS & OPERATION MANUAL — REV. #0 (07/15/02)