Yetter 1310-010 Maximizer - Manual (Page 22)

22
ASSEMBLY
TENSION AND TRAIN BELTS
1. Loosen engine mount bolts and roller bearing nuts
Tighten conveyor belt to proper tension (see note).
2. Tension engine drive belt to have ¼” of deflection
Tighten engine mount bolts.
3. Start engine (let warm up) open throttle to engage drive.
Check for any belt slippage, if found, add more tension to belt.
4. Center conveyor belt on roller by turning adjustments nuts
While belt is moving, belt should stay centered at full throttle
5. Turn off engine, install all safety shields / protective covers.
Tighten all loose nuts and bolts
Note: Belt tightening instructions
Belt tension must be great enough to prevent slippage between the drive
roller and belt. Tightening the belt is done on the tail roller by tightening the adjustment
nuts evenly. As the belt tightens, the belt takes on an oval shape as in
Section A-A.
The belt will be close to the correct tension when you can take a straight edge and lay
across the belt (return side) and get .25” reading as shown in Section A-A.
Slippage will cause excessive wear to both drive roller lagging and the belt. Further, an
excessive heat buildup on the drive roller lagging can result in rubber reversion.
(Reversion is the softening of vulcanized rubber when it is heated too long or exposed
to elevated temperatures. It is deterioration in physical properties, and frequently
results in tackiness.) Once the roller lagging has reverted, it frequently will offset onto
the bottom side of the conveyor belt. The resulting tackiness between the tube and the
belt will certainly drive horsepower consumption up; can actually result in a stalled
system, and can cause severe tracking problems.
As each adjustment is made on the conveyor system, it is necessary to wait a few
minutes, and for a minimum of 2 belt revolutions, on order to give the belt time to react
and to observe the true effect of the adjustment you have made. If the belt has over-
reacted, do not proceed to another adjustment until you first modify the original
adjustment and again, observe it effect.
Now that the belt is tracking, operate the conveyor system when fully loaded and then
repeat the tracking sequence as needed.