SERVICE AND ADJUSTMENTS
FRONT-TO-BACK ADJUSTMENT (See Figs. 21 and 22)
IMPORTANT: DECK MUST BE LEVEL
To obtain the best cutting results, the mower housing should be adjusted so the front is approximately 1/8" to 1/2" lower than the rear when the mower is in its highest position.
Check adjustment on right side of tractor. Measure dis- tance “F” directly in front of and behind the mandrel at bottom edge of mower housing as shown.
•Before making any necessary adjustments, check that both front links are equal in length.
•If links are not equal in length, adjust one link to same length as other link.
•To lower front of mower housing, loosen nut “G” on both front links an equal number of turns.
•When distance “F” is 1/8" to 1/2" lower at front than rear, tighten nut “H” against trunnion on both front links.
•To raise front of mower housing, loosen nut “H” from trunnion on both front links. Tighten nut “G” on both front links an equal number of turns.
•When distance “F” is 1/8" to 1/2" lower at front than rear, tighten nut “H” against trunnion on both front links.
NOTE: Each full turn of nut “G” will change dim. “F” by approximately 3/8".
•Recheck
MANDREL
“F” | “F” |
FIG. 21
BOTH FRONT LINKS MUST BE EQUAL IN LENGTH |
NUT |
“G ” |
NUT |
“H” |
TRUNNION |
PLATE ASSEMBLY |
FIG. 22
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL (See Fig. 23)
•Park tractor on a level surface. Engage parking brake.
•Remove screws from L.H. mandrel cover and remove cover.
•Roll belt over the top of L.H. mandrel pulley.
•Remove belt from electric clutch pulley.
•Remove belt from idler pulleys.
•Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface.
•Check primary idler arm and two idlers to see that they rotate freely.
•Be sure spring is securely hooked to primary idler arm and bolt in mower housing.
MOWER DRIVE BELT INSTALLATION (See Fig. 23)
•Install belt in both idlers. Make sure belt is in both belt keepers at the idlers as shown.
•Install new belt onto electric clutch pulley.
•Roll belt into upper groove of L.H. mandrel pulley.
•Carefully check belt routing making sure belt is in the grooves correctly and inside belt keepers.
•Reassemble L.H. mandrel cover.
L.H. | SCREWS |
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| ELECTRIC | |
IDLER | SPRING | CLUTCH | |||
MANDREL |
| PULLEY | |||
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COVER |
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| PULLEYS |
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| PRIMARY |
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| IDLER ARM |
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| BOLT IN |
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| MOWER |
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| HOUS- |
L.H. |
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| ING |
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MANDREL |
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| MOWER |
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| DRIVE | BELT |
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| BELT |
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| KEEPERS |
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FIG. 23
TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 24)
Park the tractor on level surface. Engage parking brake.
•Remove mower drive belt (See “TO REPLACE MOWER DRIVE BELT” in this section of this manual).
•Remove mower (See “TO REMOVE MOWER” in this section of this manual).
•Remove screws from R.H. mandrel cover and remove cover. Unhook spring from bolt on mower housing.
•Carefully roll belt off R.H. mandrel pulley.
•Remove belt from center mandrel pulley, idler pulley, and L.H. mandrel pulley.
•Remove any dirt or grass which may have accumulated
21around mandrels and entire upper deck surface.