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until engine has been disabled. Switch off engine and then remove spark plug wire. Be
sure to wear personal protective equipment.
Do not let the drive belt is too loose!
Adjust the relative position of cable screw tube attached to the cable bracket to improve the
transmission effect, in case the drive belt is too loose when the tensional pulley is engaging.
If the drive belt is still too loose when the tensional pulley is engaging, adjust engine’s
position as follows:
i. Remove belt guard bolts, spacers, and outer belt guard (see Figure 16)
ii.
Loosen engine’s mounting hardware.
iii.
Move the engine forward to desired position. Check the tension at the center of the span
on the bottom side of the lower half of the belt when the tensional wheel is engaging, and insure
the belt will deflect 3/16” (about 5mm) with 13 pounds (about 6kg) of pressure applied to it.
iv.
Check alignment of pulleys with a straight edge (see Figure 19)
v.
Once proper tension and alignment are achieved, (see Figure 18). Tighten all
engine-mounting hardware.
Vi.
Reassemble outer belt guard, spaces, and belt guard hardware. Tighten securely.
Reconnect spark plug wire.
New belts have a break-in period and must be checked after 15 hours of use.
We do not recommend adjusting or replacing the drive belt by customers. Please contact
local Authorized Service Centre or WEIBANG’s exclusive national distributor to complete
this work or for details.
REPLACING DRIVE V-BELT AND PULLEY
1). Remove belt guard bolts, spacers, and outer belt guard (see Figure 16)
2). Remove old v-belt and both the 3“V-pulley and 10” V-pulley.
3). Discard belt and inspect both pulleys and belt keeper kit for any wear or damage.
Pivot arm should be free with no more than 0.25”/0.635 cm side play. Roller bearing
should rotate smoothly and freely. Replace complete kit if necessary.
4). Check that both 10”and 3”pulleys are aligned with each other. Install new v-belt by
looping over 6.8”v-pulley on the bottom, then over 3”v-pulley on top.
Ensure that belt is in proper position inside both belt idler and keeper. (Fig.7 & 8).
5).
Replace belt guard, reconnect spark plug wire and reattach handle prior to operation.
We do not recommend replacing the drive belt or pulleys by customers. Please contact
