3.8
HEAD DOWN LIMIT SWITCH
The Head down limit switch operates to cut power to the blade motor and the coolant pump motor when the Head has de-
scended to the bottom of its travel. The Head is adjusted so that the blade will descend slightly past the level of the table
wear strip. This setting is critical to ensure that the blade has cut fully through the stock.
LUBRICATION
The S20 Series llI was designed to minimize the maintenance requirements. Moving assemblies and contact faces need
lubrication on a regular schedule whether they are in heavy use or not. The lubrication requirements of the S20 Series llI
are primarily the saw pivot point which is equipped with a grease tting, and metal to metal surfaces that require lubrica-
tion to prevent wear and seizure. General purpose industrial grease is suitable for application.
BLADE TENSION SLIDE ADJUSTMENT
To reduce the play, which may develop over time between the blade tensioner slide and slide gibs, adjust the screws be-
tween the gibs and slide as follows:
1. Remove the head front cover.
2. Undo blade tension.
3. Remove blade from wheels.
4. Remove the pin connecting tensioner actuator with slider.
5. Move the slider by hand back and forth to locate any friction or ex-
cessive play.
6. Loosen the nuts, using tubular nut driver while holding the set screws rm with Allen key.
7. Tighten the set screws to take up any play or loosen them up in case of excessive friction.
8. Retighten the nuts with tubular nut drive
Adjustment of the limit switch is made by changing the posi-
tion of the set bolt. Lengthening the set bolt will cause the limit
switch to activate sooner. Shortening the setting bolt by turning
it into the swivel will allow the head to come down lower.
Swivel pivot
grease tting
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