MQ 38641, Operation Manual

Page: 22 / 34

PAGE 22 — SP1G CONCRETE SAW • OPERATION MANUAL — REV. #3 (09/07/17)
INSPECTION
Selecting Diamond Blades
Selecting the diamond blade type and grade defines how
the blade will perform both in cutting speed and blade life.
Selection of the proper diamond blade consists of:
„ Material to be Cut
„ Type of Saw Being Used
„ Spindle Speed of Saw
„ Hardness Characteristics of the Material
„ Performance Expectations
Factors for sawing economy:
„ Type of Blade
„
Depth of Cut
„
Sawing Speed
„
Characteristics of the Material Being Cut
Blade Speed
A diamond blade’s performance is directly connected to
specific peripheral (rim) speeds.
The following shaft rotational speeds have been factory set
to ensure optimum blade performance.
Capacity - 6000 RPM.
Cutting Depth
The SP1G concrete saw has a capacity for a 10-inch blade
with a 5/8 in. (15.87 mm) arbor diameter. This allows a
cutting range from 0 to 3 ¼ inches.
WARNING
Operating saw blades at rotational
speeds greater than those specified
by the manufacturer can cause blade
damage and may injure the user or
others in the operating area.
WARNING
Dropping or forcing the blade onto the
cutting surface can severely damage
the diamond blade and may cause
serious damage to the saw and bodily
harm.
Blade Replacement
Refer to Figure 11 for location of components.
1. Place the saw in a secure, level work place.
2. Using the supplied Utility Saw Wrench (9), loosen and
remove two Blade Guard Security Bolts (2).
3. Remove the Blade Guard (3).
4. Place the Blade Shaft Locking Pin (4) into the Blade
Shaft Locking Hole (5).
5. Spin the Blade Shaft until the Blade Shaft Locking Pin
seats into the machined hole of the Blade Shaft.
6. Place the proper Diamond Blade (6) firmly against the
Inside Blade Flange.
7. Place the (flat side) Outside Blade Flange (7) against
the Diamond Blade.
8. Thread the Blade Retaining Nut (8) onto the Blade
Shaft against the Outside Blade Flange and torque
to 45-50 ft lbs (standard thread) using the Utility Saw
Wrench (9).
9. Remove Blade Shaft Locking Pin and return it to its
holding position (4).
10. Place the Blade Guard over the Diamond Blade and
into its normal position.
11. Lock Blade Guard in place by replacing the two Blade
Guard Security Bolts (2).
Figure 11. Changing the Blade
8
6
7
9
3
4
1
5
2