Operating Guide
On new machines or after installing a new belt, check 
belt tension after first 20 hours of operation. Check 
and adjust belt every 50 hours thereafter.
3.     Check the condition of the V-belt(s). If any V-belt is cracked, 
frayed, or glazed, it should be replaced as soon as convenient.
4.     Check the V-belt tension by squeezing them in the center. 
The  normal  deection  on  each  side  should  be 3/8"(9mm)  to 
1/2"(13mm) with moderate pressure from your thumb or 
nger. (See Figure 7b)
TENSIONING V-BELT(S)
Proper belt tension is critical to good performance.
Proper adjustment will assure long belt life. Too much or too little 
belt tension will cause premature belt failure.
1.     Loosen 4 engine mount bolts (do not remove) only enough to 
move the engine forward. (See Figure 8a & Figure 8b)
Figure 7a
Figure 7b
3/8”
Engine Mount Bolt (×2)
Engine Mount Bolt (×2)
When adjusting the belt(s), make sure that the clutch 
pulley is in alignment with exciter pulley.
2.   Loosen the jam nuts B, leaving enough space between the nut 
and bracket.
3.     Push engine toward the back of the plate by turning the 
adjustment bolts A to remove any slack in V-belt(s).
4.     When the V-belt tension is correct, tighten the jam nuts B 
against the bracket. (See Figure 8c & Figure 8d)
Figure 8a
Figure 8b
14
Plate Compactor 
»
 Operator’s Manual  
YC1160PM01 - 1703
Maintenance 
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