SERVICE
20
REMOVING HANDLEBAR FROM THE CUT-
OFF SAW
1. Loosen and remove the hex-socket capscrews from the
top and bottom of the handlebar next to the wheel guard.
2. Slide the handle horizontally off the end of the motor as-
sembly.
Note:
Included with the saw cart is a tubular handle. This
handle replaces the existing tubular handle on the saw
so that the operator may easily switch from cart use to
hand use.
INSTALL CUTOFF SAW ON THE SAW CART
1. Position the saw on the cart with the round motor body
inserted into the cart housing. The cutting blade must be
perpendicular to the fl oor and the guard positioned parallel
to the cart frame.
2. Install and tighten the cutting-head collar bolt and nut
through the clamp on the cart.
3. Install the hairpin cotter on the saw and the middle
bracket on the cart to secure the saw’s valve handle as-
sembly to the cart.
4. Adjust the cable jacket travel. Adjust the cable stop set-
screw on the bottom of the cable until the slack is taken out
of the cable.
5. Connect the water-supply hose to the wheel guard.
REMOVE CUTOFF SAW FROM SAW CART
The tool can easily be converted back to its original hand-
held confi guration.
1. Remove the water hose assembly, as required.
2. Release the saw from the cart by removing the hairpin
cotter and cutting-head collar nut and bolt.
DISASSEMBLY
FLOW CONTROL REPLACEMENT
The tamper-proof fl ow control valve in the handle is preset
at the factory and is not fi eld serviceable. If the drive-shaft
speed exceeds the 4500 rpm maximum limit, replace the
fl ow control. Refer to the Periodic Maintenance procedure
earlier in this section for the drive-shaft speed test.
CUTOFF WHEEL REMOVAL
1. Loosen and remove the wheel nut using a wrench while
gripping the cutoff wheel.
2. Remove the outside collar and blotter.
3. Remove the wheel.
4. Remove the inside blotter and collar.
Note:
Periodically inspect the thrust collar before replacing
the wheel.
WHEEL GUARD REMOVAL
The cutoff wheel and collars must fi rst be removed by fol-
lowing the steps above.
1. Remove the beveled retaining ring from the motor pilot
diameter inside the wheel guard using snap ring pliers.
2. Unscrew and remove the swingover nut and washer
securing the wheel guard.
3. Remove the guard.
SAFETY CATCH REMOVAL
1. Drive the roll pin out of the valve handle assembly using
a 3/16-inch (4 mm) punch.
2. Remove the safety catch and spring.
TRIGGER REMOVAL
The cut-off wheel, wheel guard and safety catch must
be removed to provide access to the roll pin in the valve
handle.
1. Drive the roll pin out of the valve handle assembly using
a 1/4-inch (6 mm) punch.
2. Remove the trigger and spacer.
ON / OFF VALVE REMOVAL
The cutoff wheel, wheel guard, safety catch and trigger
must be removed before valve removal.
Summary of Contents for CO25
Page 25: ...25 CO25 PARTS ILLUSTRATION ...
