DEALER SERVICE
The information in this section is written for dealer ser- vice personnel. The repair described herein requires special skills and tools. If your shop is not properly equipped or your mechanics are not properly trained in this type of repair, you may be time and money ahead to replace complete assemblies.
Keep hands, feet, hair, and clothing away from equipment while engine is running. Stay clear of all moving parts.
Before performing any service or maintenance, lower mower to ground or block securely, turn off tractor engine, remove key, set parking brake, and remove belt from tractor PTO sheave.
■Before working underneath, raise mower to highest position and block securely. Blocking up prevents mower dropping from hydraulic leak down, hydraulic system failures, or mechanical component failures.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
Always wear relatively tight and belted clothing to avoid getting caught in moving parts. Wear sturdy,
BLADE SPINDLE REPAIR
Spindle repair requires special skills and tools. If your shop is not properly equipped or your mechanics are not trained in this type of repair, you may be time and money ahead to use a new spindle assembly.
Periodically inspect blade spindles by grasping pulley, moving from side to side and up and down. If end play or wobble is noted, replace or repair.
Rotate spindle. If it feels rough (indicating bad bear- ings), replace or repair. Bearing adjustment is main- tained by drilling a hole through the sleeve and spindle shaft and inserting a roll pin.
For reference, grease fitting is in top of housing.
Permatex® Aviation
Removal
Remove blade from spindle.
Remove belt from pulleys.
Disassemble split taper bushing (located on top of pul- ley) by removing the two bolts and inserting them into the threaded holes of bushing flange. Tighten them alternately to remove split taper bushing. Remove key and pulley.
Disassembly (Figure 13)
Remove bolts attaching spindle to mower frame and remove spindle.
Drive roll pin out of sleeve and shaft.
Place spindle assembly in press and press the shaft down through housing.
Remove seals from housing.
Remove bearing cups from housing by placing a punch in slots provided and driving out. Alternate punch posi- tions from side to side. Take care to prevent housing damage.
1.Seal
2.Sleeve
3.Roll pin
4.Bearing
5.Cup
6.Spindle housing
7.Grease fitting
8.Spindle shaft
Figure 13. Blade Spindle Assembly
51642 (Rev. 11/9/2007) | Dealer Service 19 |
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