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8

Blade Shaft Drive Belt Tension: Drive

 Belt should be 

re-tensioned after first few hours of operation.  Belt Drive 

Idler (MM) holds tension on Drive Belt.
Tools Required:
• mm Wrench (Included with machine).
• /8” (9.mm) Drive Torque Wrench (Not Included)
• mm Wrench (Not included with machine).
. Use mm Wrench (U), to remove three () M8 bolts 

that attach Belt Guard (LL).  Remove Guard (LL).

. Use the mm & mm wrenches to slightly loosen the 

two () bolts that secure the Belt Drive Idler (MM) [bolts 

indicated by () arrows].

. Attach Torque Wrench to square hole in Belt Drive Idler 

(MM).

. Apply a torque to Drive Idler (MM) so that Drive Idler 

(MM) is forced against the V-Belt.  Torque to the value 

shown in diagram .

. Tighten center bolt (CB) to hold Drive Idler (MM) in 

position, then tighten remaining bolt (CB).

. Reinstall Belt Guard (LL).  Use mm Wrench (U), to 

tighten three () M8 bolts that attach Belt Guard (LL).

It  is  critical  that  Governor  and  throttle  on  all  internal 

combustion engines be adjusted properly. Engine speed 

is preset at factory for proper sawing speed. It is NOT 

normally necessary to change this setting. It should be 

periodically verified after machine is placed into service. 

To  change  the  Governor  setting,  refer  to  the  engine 

manual.

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