Snapper NZM25613KWV, NZM27 613KH, NZM25523KWV, NZM19483KWV, NZM21523KWV Bearing Replacement

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Section 5 - ADJUSTMENTS & REPAIR

5.11MOWER SPINDLES (Field Serviceable Spindles)

BEARING REPLACEMENT

In the event that a spindle bearing requires replacement, the SNAPPER Field Serviceable Spindles have been designed so that no special tools or presses are required.

1. Remove belt. Loosen blade nut and remove.

Allow blade bolt, washer_ blade and four spacers to drop down out of the spindle housing. See Figure 5.19.

REMOVE NUT

REMOVE BELT

FROM SPINDLE

J

r

!_

;_M_VE BLADE

FIGURE 5,19

2.Remove spindle pulley from spindle shaft.

3.Locate circular retaining ring on spindle shaft at top bearing. Remove retaining ring. Allow spindle shaft to drop out of housing.

4.Top and bottom bearings are now removable. Pull out on inner race to slide bearing from housing. See Figure 5.20.

5.Thoroughly clean all parts removing all old contaminated grease.

6.Install new bottom bearing first.

7.NOTE: The bearing is sealed/shielded on one

side only. The bottom bearing must be installed with the sealed/shielded side DOWN.

8.Insert spindle shaft up through the bottom bearing. Slide spacer down over spindle shaft.

9.Install new top bearing. Install the top bearing with the seal/shield UP.

10.Slide circular retaining ring down spindle shaft until it fully locks into groove on shaft.

11.Apply a generous amount of general-purpose grease to the concave side of the nylos seal. Install the nyIos seal with concave greased side down.

12.Place spindle pulley and spacer on top of spindle shaft.

13ReinstaII blade bolt, washer, blade and four spacers. See Figure 5.15

14.Torque blade bolt and nut to 70 to 80 ft. Ibs.

15.Pump grease into spindle housing until grease purges from vent on housing.

16.After the first 5 hours of operation, grease spindle housing to insure it is full, then every 25 hours.

IMPORTANT: Spindle housing must be filled with grease before operating mower. Failure to fill housing will cause premature bearing failure.

®

 

 

 

•_PULLEY

 

 

_1

SPACER

 

 

NYLOS SEAL

i BEARING

l

_ C%"

RETAINING RING

SEAL UP

 

_L._t

BEARING

HOUSING

SPINDLE

{_1"SPACER

DOWN

BEARING

I BEARING SEAL

I

 

SHAFT

SPINDLE

FIGURE 5.20

28

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Contents SNAPPER.coonough.,3o2os3 Safety Messages and Symbols Parking Brake Lever Operation Wear Hearing ProtectionPull Switch UP to Roll Barprotectivestructuredecalsi Operating Instructions PRE-START Check ListSafety Interlock System Checks 2, Stopping MachineFolding the Roll BAR Protective Structure Engine Must not Start ifMaintenance Annually END of Each Season2. Fuel Filter Deck RemovalAdjustments & Repair Neutral Position AdjustmentsNeutral Position Adjustments Mower Deck & Component Mower Deck Adjustment LevelnessSection Traction Belt Replacement Traction Belt TensionTracking Adjustment Mower Drive Belt ReplacementBelt Replacement Belt RemovalBearing Replacement Hydraulic SYSTEM, Purging SNAPPERo.coonouo

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