Cub Cadet 8454 Service Manual page 31

F. CAMSHAFT
The camshaft (3) is made of forged steel and it's jour-
nals and cams are hardened to increase wear
resistance. The cams on the camshaft open and close
the intake and exhaust valves with the push rods and
rocker arms. The journals and their bearings are force-
lubricated.
G. FUEL CAMSHAFT
This fuel camshaft is made of forged steel and its cams
are hardened and tempered to increase wear
resistance. The cams on the fuel camshaft (1) drive
the injection pump and the fuel transfer pump. The
governor balls are installed on the fuel camshaft to
control the engine speed.
H. ROCKER ARM ASSEMBLY
The rocker arm assembly includes the rocker arms (1)
and an adjusting screw (3), which is at the end of rocker
arm and rests on the push rod, rocker arm brackets (4)
and rocker arm shaft (5). The rocker arms are activated
by the reciprocating motion of the push rods and open
or close the intake and exhaust valves. The rocker arm
and other parts are lubricated through the drilled holes
of the brackets and the rocker arm shaft.
D569-W02 May-2003
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
(1) Cam Gear
(2) Camshaft Stopper
(1) Fuel Camshaft
(1) Rocker Arm
(2) Lock Nut
(3) Adjusting Screw
ENGINE
569W212A
(3) Camshaft
569W213A
(2) Injection Pump Gear
569W214A
(4) Rocker Arm Bracket
(5) Rocker Arm Shaft
2-9