2.Install pulley (12) and split taper bushing (13) with integral key (14) on spindle shaft. Make sure bushing is in contact with sleeve on spindle shaft.

3.Alternately tighten split taper bushing cap screws to 20 lbs-ft.

4.Install lock washer and nut on spindle shaft. Tighten nut until snug, but do not over-tighten. Check shaft to make sure it spins freely..

1.Crown gear

2.Gearbox housing

3.Input shaft

4.Output shaft

5.Gear pinion

6.Bearing

7.Bearing

8.Protective flat washer

9.Cotter pin

10.Snap ring

11.Snap ring

12.Spacer

13.Shim

14.Castle nut

15.Castle nut M24 x 2

16.Shim

17.Flat washer

18.Oil seal (40 x 80 x 12 mm)

19.Oil seal (35 x 72 x 10 mm)

20.Cap

21.Snap ring

22.Top cover

23.Bolt M8 x 14 mm

24.Breather level plug

25.Cotter pin

26.Bearing

27.Ball bearing

Figure 18. Gearbox Assembly

GEARBOX REPAIR

Read this entire section before starting any repair. Many steps are dependent on each other.

Repair to this gearbox is limited to replacing bearings, seals, and gaskets. Replacing gears, shafts, and a housing is not cost effective. It is more economical to purchase a complete gearbox if repair to anything other than replacement of bearings, seals or gaskets is required.

Fill gearbox with SAE 80W or 90W gear lube until it runs out the side level plug.

Bearing failure is indicated by excessive noise and side to side or end play in gear shafts.

Seal Replacement

Recommended sealant for gearbox repair is Perma- tex® Aviation 3D Form-A-Gasket or equivalent.

Leakage can occur at the vertical or horizontal gaskets and shaft seals.

Leakage at the horizontal gasket or seal can be repaired without removing the gearbox from the cutter.

Inspect gearbox for leakage and bad bearings.

Leakage is a very serious problem and must be cor- rected immediately.

Seal Installation

NOTE: Proper seal installation is important. An improp- erly installed seal will leak.

24 Dealer Service

MAN0845 (1/12/2011)

 

 

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Woods Equipment RD990X manual Gearbox Repair, Seal Replacement, Seal Installation

RD990X specifications

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