Briggs & Stratton 5900834 ユーザーズマニュアル

 1.  Park the unit on a smooth, level surface such as 

a concrete floor.  Disengage the PTO, engage the 
parking brake, turn off the engine, and remove the 
ignition key.

 2.  Remove the mower deck guard.

 3.  Position the mower deck in the TRANSPORT 

position.

Regular Maintenance

To avoid damaging belts, DO NOT pry belts over 
pulleys.

 4.  Using a 1/2” breaker bar, place the square end in 

the square hole located in the end of the idler arm 
(A, Figure 44).  Carefully rotate the breaker bar 
CLOCKWISE, which will relieve the tension on the 
belt exerted from the idler arm.

 5.  Slide the PTO drive belt over the edge of the left 

spindle pulley (B).  Carefully release the tension 
on the breaker bar.

 6.  Remove the old belt and replace with a new one.  

Make sure the V-side of the belt runs in the pulley 
grooves.

 7.  Install the PTO drive belt (A, Figure 45) on the 

PTO clutch pulley (B), the front idler pulley (C) 
and the idler arm pulley (D).  Carefully rotate the 
breaker bar CLOCKWISE and install the belt on 
the left spindle pulley (E).  Carefully release the 
tension on the breaker bar.

 8.  Reinstall the mower deck guard.

 9.  Run the mower under no-load condition for about 

5 minutes to break-in the new belt.

Not 

for  

Reproduction