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633GC OPERATOR’S MANUAL
13
P/N 70944 Jan 07 © 2007 ICS, Blount Inc.
COLD ENGINE STARTING PROCEDURE
1. Toggle the ignition switch to the "START" position and pull the
choke lever out.
2. Lock the throttle in the start position by depressing the trigger (A)
and trigger interlock (B) at the same time.
3. Depress and hold throttle lock button (C) while releasing the trigger
and trigger interlock in succession.
4. Open the water valve 1/4 turn.
5. Place the diamond chainsaw on the ground making sure the chain
is free of any obstructions.
6. Place right foot on the base of the rear handle.
7. Place left hand on front handle.
8. With right hand, slowly pull starter handle until the starter pawls engage.
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.
11. Pull the starter cord until engine starts - should be 1 to 2 pulls.
12. When the engine starts, allow the engine to idle. Pull on the throttle trigger several times to help
warm up the engine.
13. Open the water valve completely.
CAUTION
STARTING AND STOPPING A DIAMOND CHAINSAW
Never start a diamond saw without the bar, chain and side cover
properly assembled. Otherwise, the clutch can come loose and
cause personal injuries.
Always move a diamond chainsaw at least 10 feet (3 m) away from
the fueling area before starting.
Place the diamond saw on clear ground. Ensure that secure
footing is established and chain is not contacting any objects.
IMPORTANT
WARNING
WARM ENGINE STARTING PROCEDURE
1. Use the same procedure as starting cold engine, but
DO NOT pull choke lever out. If choke is used, the
carburetor will flood with gas.
2. If the engine does not start in 3 hard, fast pulls with the throttle locked, unlock the throttle and pull the
starter cord 3 more times.
Note: To hold the trigger fully open it may be necessary to insert right foot into rear handle opening
and twist.
Figure 1: a-Trigger, b-trigger
interlock, c-throttle lock
C
B
A
STOPPING THE SAW
• To turn the engine off, toggle ignition switch to the "STOP" position. Close water valve.
OPERATION