page 36
TD-24-T (5+20)
®
Maintenance
b. Measure the free stroke. Make the same two measurements as described above
for measuring the applied stroke, but instead of air pressure use a lever to move the
slack adjuster arm until the brake shoes contact the drum. This distance should be
between
3
/
8
" to
5
/
8
".
If the free stroke is good but the applied stroke is too long then there is a problem
with the foundation brake. Check the foundation brake for missing or worn compo-
nents, cracked brake drums, or improper lining to drum contact.
If the free stroke is less than
3
/
8
", then a dragging brake can occur. Readjust the
slack adjuster manually as described below.
If the applied stroke is good but the free stroke is greater than the recommended
distance (
3
/
8
" to
5
/
8
"), then a function test of the slack adjuster should be performed as
described below.
Manual Brake Adjustment
1. Rotate the hex extension clockwise until the brake linings contact the brake drum,
then back off the slack adjuster by rotating the hex extension counterclockwise
1
/
2
turn.
Backing off the slack will require about 25 to 30 lbs.-ft. of torque, and a ratcheting
sound will be heard.
Summary of Contents for TD-24-T(5+20)
Page 9: ...page 9 TD 24 T 5 20 Operation Spring Brake Chamber Rubber Seal Caging Key...
Page 59: ...page 59 TD 24 T 5 20 2 6 7 11 8 3 9 10 5 4 12 13 14 16 15 1 Parts P A R T S...
Page 61: ...page 61 TD 24 T 5 20 4 5 6 8 7 16 15 14 13 11 9 12 10 Parts P A R T S 3 2 1...
Page 63: ...page 63 TD 24 T 5 20 9 12 10 13 5 7 6 3 4 3 1 6 8 7 17 2 11 16 15 14 Parts P A R T S...
Page 67: ...page 67 TD 24 T 5 20 Parts P A R T S THIS PAGE LEFT BLANK INTENTIONALLY...
Page 69: ...page 69 TD 24 T 5 20 Parts P A R T S 5 6 6 7 8 9 10 12 11 4 3 1 2...
Page 71: ...page 71 TD 24 T 5 20 Junction Box shown for reference only Parts P A R T S 4 1 3 2 6 5...
Page 75: ...page 75 TD 24 T 5 20 Parts Detail shown on follow ing pages P A R T S 4 7 5 6 2 1 3 3...
Page 77: ...page 77 TD 24 T 5 20 Parts Hidden between ECU and tank P A R T S 15 5 15 20 19 18 4 21 15 6...