RD60 & RD72
3.Install upper output bearing (13), shims (14), and snap ring (15) on output shaft (12). Use new shims equal to the thickness of the original shims.
4.Press output shaft assembly into housing from the bottom opening.
5.Install spacer (16), lower output bearing (13), shims (17), and snap ring (18) in bottom of housing.
RDC54
3.Install shims (14), upper output bearing (8), spacer (16), lower output bearing (8), shims (17), and snap ring (15) on output shaft. Use new shims equal to the thickness of the original shims.
4.Press output shaft assembly into housing from the bottom opening.
5.Install snap ring (18) in bottom of housing.
All Models
6.Apply grease to lower seal lips (19), and press seal over output shaft (5), using a round tube of the correct diameter. Be sure not to damage the seal lip. Press in housing so that the seal is recessed.
7.Insert protective washer (20) (RD60 & RD72 only) by hand.
8.Install snap ring (21) and position it together with seal (19) by pressing it into position. Verify that the snap ring is seated properly.
9.Press bearing (8) into the housing, using a round tube of the correct diameter and a hand press. Secure with shims (9) and snap ring (10).
10.Install key (6) on input shaft (5).
11.Place gear (7) through top of housing and align the two gears so they match.
12.While holding gear (7) in place, slide input shaft (5) through the gear and bearing (8).
13.Slide spacer (29) (RDC54 only) and bearing (4) over input shaft (5) and press into housing, using a round tube of the correct diameter and a hand press.
14.Slide shim (3) over input shaft and secure with snap ring (2).
15.Check input shaft end float by moving the input shaft by hand. If the end float is more than .012", insert shim (9) between the rear bearing (8) and snap ring (10).
16.Check that gear backlash is between .006" and
.016". You should not have to adjust the backlash.
17.Press in input seal (1), using a round tube of the correct diameter. Be careful not to damage the seal lip.
18.Press oil cap (11) on to the rear cover of housing, using a round tube of the correct diameter.
19.Check the gearbox housing for leaks by plugging all holes except one. Apply 4 psi compressed air and immerse the gearbox in water to verify that there are no leaks.
20.Remove the gearbox from water and dry off with compressed air. Add SAE 80W or 90W EP oil until it runs out of the side level hole. Tighten all plugs.
Install Gearbox
NOTE: Gearbox is heavy: do not attempt to move with- out mechanical assistance.
1.Set gearbox on gearbox stand and fasten with bolts and nuts. Torque bolts to 175
2.Attach drive sheave to output shaft. Secure using castle nut and hardware previously removed.
3.Attach gearbox stand to mower using four hex screws.
Install Drive Sheave
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.Tighten gear stand hardware.
3.Fill gearbox half full with SAE 90W gear lube.
4.Check level after waiting five 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.
24 Dealer Service | MAN0260 (8/6/2004) |
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