TYM T233 HST, Service Manual

Page: 92 / 232

1.Shaft,PTO clutch 2.Bearing ball(6005) 3.Clutch ass’y case 4.Seal B 5.Piston
6.Seal A 7.Ring, Piston 8.Brake disc 9.Plate, return 10.Disc
11.Plate 12.Spring 13.Plate assy 14.Snap ring 15.Hub
Fig.5-8
3) PTO CLUTCH
(3-1) DISASSEMBLY
Note:
Disassembly of the PTO clutch assembly should be done in a clean, dust-free place.
Exercise special attention to avoid damage of the seal rings,etc
a. Pull out PTO drive shaft rearwards.
b.Pull out PTO drive gear (Hub) forwards.
c.Remove snap ring (D95 for hole), and take
bake-up plate, disc assembly, and driving
plates.
d.While holding return spring(43) compressed
with a special tool, remove snap ring(D95)
e. Disassemble into separate parts; piston, return
sparing, brake disc, and cover assembly.
(3.2) INSPECTION
a. Cover assembly
-Replace a cover assembly which has a damaged
or worn sliding surface.
-If there is any damage to the cover assembly
and the piston seal ring, these parts should also
be replaced.
b. Disc assembly
- If the thickness of a disc assembly exceeds the
usable limit mentioned below or combined width
of the disc assembly and driven plate is less than
24.5mm(1 in), replace both the disc
assembly and driven plate.
5-7
Fig.5-9