17MAINTENANCE continued
17.6BRAKE PUCK REPLACEMENT
Tools Required: 5/32” Allen wrench; 3/8” wrench.
1.Remove the spark plug wire.
2.Remove the belt deck cover.
3.Remove the brake spring (A) and control cable spring (B) (see figure
4.Remove the blade drive belt (C) from the drive pulley (D).
5.Using a 3/8” wrench and 5/32” allen wrench, remove the
nuts from the #10 puck retaining bolts (see
6.Remove the brake puck.
7.Remove the bolts from the puck.
Note: The puck ends are symmetrical and can be interchanged to use a new braking surface unless both ends are already worn (Figure 4). When both ends have been used replace the puck with a new one.
8.Inspect the nylon brake arm spacer (Item 44).
9.Replace the spacer if it shows signs of wear.
10.Reassemble all parts in the same orientation as when removed.
Note: Before installing fasteners, inspect them for wear and replace as necessary.
11.Check the operation of the clutch and brake mechanism. The drive belt should be slack and the brake engaged (center
pulley will not turn easily by hand) when no pressure is exerted on blade drive lever.
Note: When the blade drive lever is depressed, the brake puck should not rub on the center pulley, the belt should be under tension, and not rub on the belt finger (see figure
13.Replace the belt cover and connect the spark plug wire. Start the engine and check the clutch/brake operation under power.
Note: When the blade clutch control lever is pressed down, the blades should spin up to speed without belt slippage indicated by a pronounced belt squealing sound. When the clutch control lever is released, the blades should stop spinning in 5 seconds or less.
Figure
A
DFigure
C
Figure
B
Belt finger should not rub on belt when drive is engaged.
Part No. 520166 | Page 14 of 20 | Form No. F112003A |
