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Replacing Engine Belt (cont.)
• Move the engagement lever to the full
engaged position. Check belt tension and
sheave alignment. (Refer to Machine
Maintenance section, Checking Belt
Tension.) The belt should deflect 1/2"
with 25 lbs. of force centered between
the sheaves.
• If any adjustment is required, there is a
linkage assembly attached to the
engagement lever. With the lever in the
disengaged position, remove the yoke
pin and adjust the yoke in or out as
necessary to set the proper belt tension.
Note: It may be necessary to loosen the
jam nut to allow for proper adjustment.
• To tighten belt tension, adjust the yoke
out (counterclockwise).
• To loosen belt tension, adjust the yoke in
(clockwise).
• Replace yoke pin and move the lever to
the engaged position.
• Recheck belt tension. Repeat until
proper tension is achieved. Tighten jam
nut if loose.
• Adjust slide lock lever as needed to
ensure it locks properly when
engagement handle is in the disengaged
position.
• Replace cover and tighten all bolts.
GENERAL TENSIONING OF V-BELT DRIVES
A few simple rules about tensioning will satisfy most of your requirements.
1. The best tension for the V-belt drive is the
lowest tension at which the belt will not
slip under the highest load condition.
2. Check tension on a new belt frequently
during the first day of operation.
3. Thereafter, check belt tension
periodically.
SP6016
4. Too much tension shortens belt and
5. Keep belts and sheaves free from any
6. If a V-belt slips, tighten it.
SERVICING BELTS
LINKAGE ASSEMBLY ATTACHED TO ENGAGEMENT
LEVER. REMOVE YOKE PIN AND ADJUST YOKE.
CAUTION
Do not over tighten belt; overly tight belts
will cause bearing and engine damage.
Replace belts when worn or when
repeated adjustments are necessary. Belts
should never get so loose that all the
adjustment capability is used.
bearing life.
foreign material that may cause slippage.
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