Great Dane GDB10025, GDB10027 manual Replacing Mower Spindle Bearings 48 and 52-Inch Mower Decks

SERVICE MOWER

Replacing Mower Spindle Bearings - 48 and 52-Inch Mower Decks

1.Park machine safely. (See Parking Safely in the Safety section.)

2.Remove engine-to-deck drive and spindle drive belts.

3.Remove mower blade. (See Replacing Mower Blades.)

A	E
B	F
C	G
D	H
	I
	N
	M
	L
	K
	J
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4.Remove pulleys:

•Right and Left Spindles (A): Remove nut (B), spacer (C) and pulley (D).

•Center Spindle (E): Remove nut (F), drive pulley (G) and spindle pulley (H).

5.Remove retaining ring (I), spindle shaft (J), lower bearing (K) and spacer (L) from spindle housing (M). Discard bearing.

6.Remove and discard upper bearing (N).

7.Clean entire assembly.

8.Install a new lower bearing (K) and spacer (L) on the spindle shaft (J).

IMPORTANT: Avoid damage! The clearance between the lower bearing and the housing is only 0.05 mm (0.002 in.). Do not force bearing into housing.

9.Install the spindle shaft (J), lower bearing (K) and spacer

(L) into the spindle housing (M).

10.Install the upper bearing (N) and retaining ring (I).

11.Install upper pulleys:

•Right and Left Spindles (A): Install pulley (D), spacer (C) and nut (B). Tighten nut to 68 N•m (50 lb-ft).

•Center Spindle (E): Install spindle pulley (H), drive pulley (G) and nut (F). Tighten nut to 68 N•m (50 lb-ft).

12.Install mower blade, blade washers and blade bolt assembly. Tighten nut to 81 N•m (60 lb-ft). (See Checking and Replacing Mower Blades.)

Replacing Mower Deck Idler Pulleys

1.Park machine safely. (See Parking Safely in the Safety section.)

2.Remove the mower deck drive and spindle drive belts.

A

B

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3.Remove the mower deck drive tension idler pulley (A) and the mower and spindle drive tension idler pulley (B).

4.Install new idler pulleys.

5.Install spindle drive and mower deck drive belts.

6.Adjust belt tension.

Service Mower - 21