Walker MT Owner's Manual

Contents

Maintenance Instructions REPLACING/REPAIRING724. Remove the blower assembly from the chassisas follows:a. Remove the blower skid bar by removingfront and rear mounting bolts from the skidbar (underneath the blower) and removingthe bolt connecting the blower housing tothe skid bar.b. Remove the blower belt tightener idler armassembly by removing the pivot bolt.c. Remove two (2) bolts mounting the blowerhousing to the frame.d. Lower the blower assembly straight downout of the chassis frame and remove.Blower Wheel RemovalWhen required, replace the blower wheel using thefollowing procedure:1. Loosen blower pulley set screws and removethe pulley using a wheel puller.2. Remove the locking collar from the back bear-ing (closest to the pulley) by loosening the setscrew and rotating the collar counterclockwise(use punch to drive).3. Press blower wheel out of the housing using awheel puller hooked to lugs on the bearing hous-ing. The bearings have been secured in thehousing with a retaining compound - Loctite®RC/680, and considerable force will be re-quired to break this bond. After the bearingshave “broken loose” from the housing, only lightpressure should be required to remove thewheel assembly out of the housing.NOTE: It may or may not be possible to removethe front bearing from the blower wheel withoutdamaging it. If the bearing is damaged, it willneed to be replaced along with the wheel.Pressing Blower Wheel Out of HousingBlower Wheel Installation1. To install the blower wheel, reverse the remov-al procedures. The front bearing is mountedon the blower wheel shaft, secured by a lockingcollar. Drive the locking collar clockwise with apunch, and tighten the set screw.2. Press blower wheel and front bearing into theblower housing. Use Loctite ® RC/680 retainingcompound on the outer bearing race and insidethe bearing housing.3. Press the rear bearing into place, using Loctite®on both the outer bearing race and the housing.4. Install the locking collar on the rear bearing andinstall the blower pulley to complete the blowerassembly. Torque the blower pulley set screwsto 250 in-lb (28.3 N⋅m).GHS Blower Assembly InstallationReinstall the blower assembly into the mower usingthe reverse procedures ofGHS Blower AssemblyRemoval.Wheel PullerHooked to Lugson Bearing Housing