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633GC / 633F4 OPERATOR'S MANUAL
STARTING AND STOPPING A DIAMOND CHAINSAW
WARNING
CAUTION
IMPORTANT
COLD ENGINE STARTING PROCEDURE
1. Toggle the ignition switch to the "START" position and pull the
choke lever out.
All concrete pipe cutting chain saws are considered specialty tools. The overall cutting
2. Lock the throttle in the start position by depressing the trigger (A)
speed is slower that some other types of cutting equipment. For this reason the correct
and trigger interlock (B) at the same time.
time allocation should be made so that the operator has time to make the cut at a
3. Depress and hold throttle lock button (C) while releasing the trigger
safe pace and not have to force the saw to try and increase production. Forcing the
and trigger interlock in succession.
saw creates unneeded wear on chains, bars, and drive components. Additionally, long
4. Open the water valve 1/4 turn.
periods of exertion can cause operator fatigue which can increase the likelihood of
5. Place the diamond chainsaw on the ground making sure the chain
injury.
is free of any obstructions.
6. Place right foot on the base of the rear handle.
When using the saw in a hand held fashion a slow rocking motion will provide the
7. Place left hand on front handle.
best cutting action. Alternating pressure from the front of the cut to the rear of the cut
8. With right hand, slowly pull starter handle until the starter pawls engage.
offers reliable results.
9. Pull the starter cord (hard, fast, short pulls) until engine fires or "pops" - should be 1 to 7 pulls.
10. Push the choke lever in.
The saw will cut slower when cutting through rebar and other reinforced materials.
11. Pull the starter cord until engine starts - should be 1 to 2 pulls.
Allow the saw to run at full speed and use light pressure. Pushing hard on the tool only
12. When the engine starts, allow the engine to idle. Pull on the throttle trigger several times to help
warm up the engine.
increases chain wear and stretching force adding to wear and increasing the cost per
13. Open the water valve completely.
cut.
WARM ENGINE STARTING PROCEDURE
When cutting ensure that the water supply is sufficient for the cut being made.
1. Use the same procedure as starting cold engine, but DO NOT pull choke lever out. If choke is used, the
1. Connect all fittings (Air, Hydraulic, Water).
carburetor will flood with gas.
2. Turn on power supply.
2. If the engine does not start in 3 hard, fast pulls with the throttle locked, unlock the throttle and pull the
3. Turn on water valve on the saw.
starter cord 3 more times.
Note: To hold the trigger fully open it may be necessary to insert right foot into rear handle opening
4. Once water is running through the bar apply and hold full throttle to begin cut.
and twist.
5. Use full throttle for the entire cut. Feathering the throttle makes the saw difficult to
control.
STOPPING THE SAW
• To turn the engine off, toggle ignition switch to the "STOP" position. Close water valve.
OPERATION
Before cutting, make sure the pipe is in a safe condition to be cut. Sup-
port the piece you are going to be cutting in such a way that the cut will
remain open during the cut and when the cut is finished. Pinching the
chain during the cut could cause chain breakage and could result in
death or serious injury to the operator.
Never start a diamond saw without the bar, chain and side cover
properly assembled. Otherwise, the clutch can come loose and
If using the pipe clamp accessory, the clamp must be attached in such
cause personal injuries.
a way that it does not move during the cutting operation and/or when
the cut is finished. Unexpected movement of the clamp could cause the
Always move a diamond chainsaw at least 10 feet (3 m) away from
operator to lose control of the saw resulting in death or serious injury.
the fueling area before starting.
With the saw engaged in any surface the operator should be aware that
the forces generated by the tool can force debris to be ejected from the
moving chain either away from the saw or towards the operator. Ensure
Place the diamond saw on clear ground. Ensure that secure
no bystander is located immediately in front of or behind the material
footing is established and chain is not contacting any objects.
being cut.
Making The Cut
Air Powered Chain Saw
TITLE
OPERATION
C
Figure 1: a-Trigger, b-trigger
interlock, c-throttle lock
B
A
13
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