51-4180
28
MAINTENANCE
REPLACING BRUSH SECTIONS
1.
Remove motor mount lynch pins. Retain pins for reinstallation. Remove motor mount.
2.
Remove motor assembly from core. Do not tangle hoses.
3.
Remove bearing mount lynch pins. Retain pins for reinstallation.
4.
Remove core from brush head assembly.
5.
Remove retaining plate from core assembly.
6.
Remove old sections.
7.
Install new sections by doing the following:
a.
Number the drive locations on the core as 1, 2, and 3. See Figure #1
b.
Slide the first section onto the core with the drive pins on either side of
tube 1. Make sure that the drive pins face up.
c.
Place the second section on the core with the drive pins on either side of tube 2.
Be sure the drive pins face down. See Figure #2
d.
Put the third section on with the drive pins around tube 3. Be sure the drive pins
face up.
e.
Slide sections on until the core is full, making sure to alternate the tubes used
and the direction of the drive pins.
WORN SECTION STANDARD
REFERENCE
INFORMATION
Section
OD, New
Ring ID
Section
OD, Worn
Exposed
Bristle, Worn
Bristle
Length
Exposed
Bristle, New
24
6.38
17
3.8
8.50
7.5
26
8.00
18
4.0
9.00
8.0
32
10.00
22
5.0
11.00
10.0
36
10.00
24
6.0
13.00
12.0
36
10.63
25
6.0
12.69
11.4
46
19.38
34
6.0
13.31
12.1
8.
Re-attach the section retaining plate.
9.
Place the core back into the brush frame.
10.
Slide motor assembly back into the core taking care not to tangle hoses.
11.
Re-attach motor mount with pins removed in step 1.
12.
Re-attach the bearing plate with pins removed from step 3.
FIGURE 1
DRIVE PINS
CORE
TUBES
FIRST SECTION
1
2
3
FIGURE 2
DRIVE
PINS
SECOND SECTION
