Yanmar YM276 Service Manual page 399

60-1 5.8 Brakes
BRAKE HOUSING (Continued)
INSPECTION AND REPAIR
1. Disassemble brake cover for inspeaion.
A
-
O-Rinp
B
-
Owrating Cam Laver
C -Cow,
D
-
Anhor Pin
E - E w e S h a
F - B n * . S h a
Remm Spriw
2. lnspect operating cam lever (8). Cam shaft 17.95
-
18.00 mm
10.707 to 0.709 in.)
Thickness at flat end of shaft is 7.9
-
8.1
rnm
(0.311 ot 0.319
in.)
..
r.l
3. lnspect anchor pin (D) with cover (C). O.D. at end of pin
is
17.96 -18.00 mm (0.7071 to 0.7087 in.). Thickness at flat
. .
. '
end of pin is 7.9
-
8.1 mm (0.311 to 0.319 in.).
- h
4. Check brake shoe return springs ( F ) for damage or wear.
Length of spring is 39 mm (1.535 in.) at 117 N (26.2 lbs.)
---.
5. Inspect brake linkage for wear or damage.
6. Inspect I.D. of brake drum for wear or damage.
I.D.
of drum
should be 140.0 to 140.1 mm (5.512 to 5.516 in.). Replace if
I.D. exceeds 142 mm (5.59 in.).
7. Inspect brake linings for wear or damage. The lining thickness
of new part is 4.75 mm (0.187 in.). Replace if lining thickness
is less than 3 mm (0.188 in.).