Dealer Service 33
MAN1331
(
09/29/22
)
DRIVE SHEAVE INSTALLATION
(Figure 22)
1. When gear stand is installed on mower, dimension A
(from the top of the mower deck to the center line of
the drive pulley) must be 2-7/16" (±1/32"). This is a
critical dimension and must be carefully adjusted for
proper belt life. Add or subtract shim washers under
idler pulley to align with drive pulley.
2. Tighten gear stand hardware.
3. Fill gearbox half full with SAE 90W gear lube.
4. Check level after waiting ve minutes to permit lube
to work through bearings. Add lube, if necessary,
until gearbox is half full.
5. Replace driveline shield. Attach driveline to gearbox.
Figure 22. Drive Sheave Installation
UNIVERSAL JOINT REPAIR
Figure 23. U-Joint Exploded View
U-Joint Disassembly
1. Remove external snap rings from yokes in four loca-
tions as shown in Figure 24.
Figure 24.
2. With snap rings removed, support drive in vise, hold
yoke in hand and tap on yoke to drive cup up out of
yoke. See Figure 25.
Figure 25.
3. Clamp cup in vise as shown in Figure 26 and tap on
yoke to completely remove cup from yoke. Repeat
Step 2 and Step 3 for opposite cup.
3
3
3
3
2
2
2
2
4
1
1
CD1645A
1. Yoke
2. Cup and bearings
3. Snap ring
4. Journal cross
CD1385A
CD1386
A
3125 4
6
CD4991
1. Shim
2. Idler arm
3. Idler pulley
4. Drive sheave
5. Castle nut &
cotter pin
6. Gearbox stand
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