DEALER SERVICE The information in this section is written for dealer service personnel. The repairs described require 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.
A WARNING Before servicing, adjusting, repairing or unplugging, stop tractor engine, place all controls in neutral, set park brake, remove ignition key, and wait for all moving parts to stop.
mower to transfer its weight to the jack stands, but do not raise the rear wheels off of the ground. When blocking, you must consider overall stability of the unit. Just placing jack stands under the unit will not ensure your safety. The working surface must be level and solid to support the weight on the jacks stands. Ensure jack stands are stable both top and bottom, and mower is approximately level. With full mower weight lowered on jack stands, test blocking stability before working underneath mower.
Keep all persons away from operator control area while performing adjustments, service, or maintenance.
A CAUTION Make certain all movement of equipment components has stopped before approaching for service. Always wear relatively tight and belted clothing to avoid getting caught in moving parts. Wear sturdy, rough-soled work shoes and protective equipment for eyes, hair, hands, hearing, and head; and respirator or filter mask where appropriate.
BLOCKING METHODS Jack stands, with a load rating of 1,000 pounds or more, are the only approved blocking device for this mower. A minimum of four jack stands, located under the mower as shown in Figure 14, must be installed before working underneath this unit. Do not position jack stands under wheels, axles, or wheel supports because these components can rotate. Do not work underneath unless it is properly attached to tractor (see Operation Section), the brakes set, key removed, and the mower blocked securely. The mounted unit will be anchored to minimize side to side and front to rear movement. The pull-type unit will be anchored front to rear. For the mounted unit, tighten tractor lower 3-point arm anti-sway mechanisms to prevent side to side movement. For the pull-type unit, raise mower with the standard ratchet adjustment link or the optional hydraulic cylinder. When the optional hydraulic cylinder is installed the standard equipment transport bar must be pinned in the raised position. With either the ratchet adjustment link or the optional hydraulic cylinder, lower the
22 Dealer Service
Figure 14. Jack Stand Placement (Tractor and Connection Not Shown)
BLADE SPINDLE Blade Spindle Repair Tips As a reference point, the grease fitting is in the top portion of the spindle housing. To minimize wear, the bearing cups, cones and sleeves are press fit to the shaft and will require a press or similar device for removal. When disassembling, support housing casting to prevent damage. Remove bearing cups by placing a punch in housing slots and driving cup out. Alternate punch positions from side to side. Use care to prevent housing damage. Permatex 3-D Aviation Form-A-Gasket® or equivalent is recommended as a sealant for spindle repair.
Blade Spindle Removal Remove belt. Remove blades from spindle. Remove bolt and washer from top of spindle shaft. Remove split taper bushing (located on top of pulley) by removing the two bolts and inserting them into the threaded holes in bushing flange. Tighten alternately to remove split taper bushing.
20944 (Rev. 2/3/2006)
