2008 31 DSTOPTRS
B. BRISTLE REPLACEMENT
Currently, two types of vertical digger bristles are available from TYMCO, Inc.:
1. Polypropylene
2. Steel
These two types are not interchangeable without replacing the gutter broom spring.
Polypropylene bristles (Part No. 500393) require Spring No. 5010232; whereas steel
bristles (Part No. 500392) require Spring No. 5010960.
To replace bristles, use the following procedure:
1. Lower gutter broom; turn off sweeper engine.
2. Remove bolts from bristle segments one segment at a time. TYMCO segments
use two course threaded 5/8" bolts to lock segment to disc. No nut is used on
bottom side. Also, a small 3/8" bolt is used to give support to center of segment.
There is a nut used for this center support bolt, make sure it is removed and in-
serted into new segment.
3. Available for the sweeper (see Section TK - Parts & Service Manual) is a set of
segment installation clamps (1) which look similar to vice clamps but the ends
have round dowel pins welded on. The pin on the lower jaw of the clamp inserts
into the center support hole on the new bristle segment. The pin on the upper jaw
inserts into the center support hole on the gutter broom disc. Lock the clamp in
place to hold segment which now allows the segment holes to be aligned with the
disc holes.
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