Cub Cadet 8454 Service Manual page 239

C. MODULATING VALVE
a . To Disassembling
1. Loosen bolt (1) to remove cover (2).
2. Take out piston (3), spring (4), spool (5) and valve
sheet (6).
3. Take out check valve ass'y (8) and filter (9).
• Do not loosen the adjusting kit located
to the cover. Because the adjusting kit
has set the relief pressure, the lock nut
CAUTION shall not be removed if not required
for adjustment of the pressure. If the
adjusted value is changed, the modu-
lating time may be shorter (PTO clutch
gets connected in haste) or the PTO
clutch may be hardly connected. In
case the adjusting kit is removed by
mistake, perform adjustment as speci-
fied with a pressure gauge.
b. Caution for Assembly
Apply oil sufficiently to all the parts after washed, not to
cause damage thereon when assembling.
Relief pressure Factory
set spec.
Tightening Factory
torque of bolt (1) spec.
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
2
16 ~ 18 kgf/cm
5.8 ~ 7.8 N·m
0.6 ~ 0.8 kgf·m
4.2 ~ 5.7 lbf·ft
HYDRAULIC SYSTEM
(1) Bolt
(2) Cover
(3) Piston
(4) Spring
(5) Spool (10) Filter
569W657A
(6) Valve Seat
(7) Adjusting Screw
(8) Lock Nut
(9) Check Valve
6-45