Section 4 - ADJUSTMENTS & REPAIR
WARNING
DO NOT attempt any maintenance, adjustments or service with engine and blade running. STOP engine and blade. Disconnect spark plug wire and secure away from spark plug. Engine and components are HOT. Avoid serious burns, allow sufficient time for all components to cool.
4.3.4.Replacing Rubber Driven Disc (Continued from previous page)
2.Using needle nose pliers, unhook the drive spring and slide the driven disc assembly off the hex shaft. See Figure 4.12.
3.Remove the two retaining rings which secure the rubber driven disc to the driven disc assembly. See Figure 4.13.
4.Install new rubber driven disc onto driven disc assembly with retaining rings.
5.Reverse above procedures for reassembly and installation of driven disc assembly.
4.3.5. Replacing Bearing In Driven Disc Assembly
IMPORTANT: The bearing, on these “M” series Non- Commercial machines, is staked into the thrust plate. The bearing will have to be driven out with a mallet and a large punch. A new bearing with four retaining screws will have to be purchased to replace existing bearing.
If the driven disc bearing fails, remove the driven disc assembly and replace bearing as follows:
1.Using a small flat blade screwdriver, free the clip from the transfer rod. Then remove the transfer rod from the clip and the speed control rod. See Figure
2.Using needle nose pliers, unhook the drive spring and slide the driven disc assembly off the hex shaft. See Figure 4.12.
3.Remove both snap rings that secure rubber driven disc hub to thrust plate. See Figure 4.13.
4.Slide the rubber driven disc hub out of the bearing.
5.Drive out existing bearing.
6.Install new bearing and secure to thrust plate with four retaining screws. Tighten screws securely.
7.Reassemble components in reverse order.
DRIVEN DISC
ASSEMBLY
INSTALL NEW
DRIVEN DISC
FIGURE 4.12
SNAP RINGS
FIGURE 4.13
15
