Simplicity AGCO Allis 400 Series, Service & Repair Manual

Page: 133 / 136

12 - 21
12 Mower Deck Repair
Arbor Repair
Arbor Disassembly - Late Model Arbors
Refer to Figure 18 for the following instructions.
1. Grip the arbor shaft (Ref. 12,) in a soft-jaw vice and
remove the hex nut (Ref. 1) and belleville washers
(Ref. 2).
2. Remove the the pulley (Ref. 3) and spacer (Ref. 4).
NOTE: If the spacer is seized onto the arbor shaft, soak
with rust penetrant to separate. If the parts must be
forced apart, thread the hex nut back onto the arbor shaft
to protect the threads and tap the end of the arbor shaft
with a rubber mallet.
3. Remove the arbor housing cover (Ref. 5) by prying it
apart with two small screwdrivers.
4. Separate the arbor shaft (Ref. 12), bearings (Ref. 6),
lower housing (Ref. 9), and washer (Ref. 11)
Replace parts as necessary.
Late Model Arbor Assembly
1 2 NUT, Hex, Flange, 9/16-8
2 4 WASHER, Belleville
3 2 PULLEY
4 2 HUB ADAPTER, Pulley
5 4 COVER, Arbor Housing
6 2 BEARING
7 2 SPACER
8 2 GASKET, Foam .
9 2 ARBOR HOUSING ASSY
10 1 FITTING, Grease
11 2 WASHER
12 2 SHAFT, Arbor
13 1 SHIELD, Lower Grass
14 1 BLADE, Mower, 16-1/8”
15 2 WASHER, Hex
16 2 WASHER, Spring
17 2 CAPSCREW, Hex, Hd., 7/16-14 x 1
Ref. Qty. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Figure 18. Late Model Arbor Assembly
Arbor Assembly - Late Model Arbors
Refer to Figure 18 for the following instructions.
1. Install the washer (Ref. 11) on the arbor shaft
(Ref. 12). Install the washer cup side down.
2. Install the shaft and washer assembly through the
arbor housing (Ref. 9), bearings (Ref. 6), and spacer
(Ref. 7).
3. Fill the housing with Simplicity Multi-Purpose Lithium
Grease or equivalent.
4. Assemble the foam gasket (Ref. 8), arbor housing
cover (Ref. 5), pulley hub adapter (Ref. 4), pulley
(Ref. 3), belleville washers (Ref. 2) and nut (Ref. 1)
as shown.
NOTE: If a new foam gasket is not used, seal the arbor
housing and cover with RTV or silicon sealer.
5. Align the alignment pins on the arbor housing and
cover and press housing together.
6. Torque the hex nut (Ref. 1) to 50-70 ft. lbs.
7. Install the arbor assembly in the deck shell and
secure with the 6 hex head taptite screws (see Figure
12).
8. Install the lower grass shield and mower blades as
described in Mower Blade Service.
NOTE: The arbor shaft may have up to 1/8” of end-
play. This is normal and acceptable.