Cub Cadet 4 x 2 Big Country - Poly Bed & Steel Bed - Manual (Page 80)

4 X 2 Drive System - (Steel Bed)
76
15.11. The fuel pump can be tested on the bench using
a hand operated vacuum pump to confirm the
initial tests. See Figure 15.11.
15.12.With the vent blocked, the diaphragm should be
able to hold vacuum generated by the hand
pump. See Figure 15.12.
NOTE: Recommended replacement fuel pump:
BS-808656
Valve Adjustment
Valve lash adjustment should be checked annually, or
every 300 hours of operation, whichever comes first. If
clatter is heard from the engine during operation, valve
lash should be checked.
15.13.Park the Big country on firm level ground, and
raise the bed to provide access to the engine.
15.14.Allow the engine to cool if it has been run, and
clean any dirt away from the areas surrounding
the valve covers.
15.15.The rear valve cover is easily accessible.
Removing the plenum at the front of the engine
compartment will ease access to the valve cover
on the front cylinder. See Figure 15.15.
15.16.Disconnect the high tension leads from the spark
plugs. Remove the Spark plugs using a 13/16”
socket.
15.17.Remove the valve covers using a 10 mm
wrench. Clean the valve covers, and inspect the
valve cover gasket and sealing washer under
the bolt head. Replace them if they are hard-
ened, cracked, or damaged.
Figure 15.11
Diaphragm
Chamber Vent
Figure 15.12
Figure 15.15