Push Channel Attachment
Select desired cutting height (refer to Operation sec- tion), and attach push channel arms to idler bracket with 5/8 x
Belt Installation
Pull belt to rear of tractor. Give belt a 3/4 clockwise twist between center pulley and left idler. Install belt under idler and route over drive pulley. A 1/4 clockwise twist should occur between right idler and center pulley. If any twist occurs other than these, the belt is incor- rectly installed. Recheck installation steps and correct as necessary.
Lift Chain Installation
Straighten lift chains so links are flat (without twist) and thread through front lift bracket chain idlers mounted directly above mower frame.
Route chain under tractor and through rear chain idlers mounted on idler bracket. Make sure chain remains flat. A twisted chain will not roll smoothly through chain idler. Insert end of chain into rear lift lugs mounted on tractor rockshaft arms. When cutting height is adjusted and installation complete, cut off excess chain leaving over 4".
Adjust cutting height (refer to Operation section, page 8).
Belt Alignment
Figure 19. Best Possible Alignment of Left Idler
Figure 20. Maximum Left Idler Should be Raised
Figure 21. Maximum Left Idler Should be Lowered
Figure 22. Best Possible Alignment of Right Idler
See Figure 19 through Figure 24. Belt alignment and tension should be set at the same time. It is suggested that you read both the Alignment and Tensioning sec- tions on page 23 before attempting either. Improper tension or alignment will affect belt life.
With mower level and cutting height set, check belt alignment.
Belt alignment is accomplished by adjusting idler pul- leys and/or moving the mower forward or to the rear with push channel adjustment.
Alignment tolerance are shown in Figure 19 through Figure 24. The best idler alignment is shown in Figure 19 and Figure 22. However, it is not always possible to achieve. Alignment may be set within the tolerances given but the left idler must always be at least 1" higher than the right.
Be sure belt does not rub on rear apron of mower. If mower is set to high cutting heights, it is sometimes necessary to run back of mower 1/4" lower than front to prevent this.
IMPORTANT
■Belt must not rub deck or crosswise support.
Figure 23. Maximum Right Idler Should be Raised
Figure 24. Maximum Right Idler Should be Lowered
Belt Tension
Set belt tension using a spring scale or other force measuring device. Remove right belt shield and attach scale between the center and right pulley. Apply between three and four pounds of force. Belt deflection should measure 5/16" for normal conditions.
Tension may be increased if necessary to prevent belt from slipping in heavy mowing conditions.
32695 (Rev. 11/17/2006) | Assembly 23 |
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