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MAINTENANCE
system, it is necessary to open both these
valves to drain the radiator completely.
When refilling the system, it is important that
all trapped air be purged. The following
procedure will help to insure this:
1. Make sure the engine is level. Fill the
overflow reservoir up to the MAX mark
with coolant mixture.
2. Slowly fill the radiator to the bottom of the
filler neck with coolant mixture.
3. With radiator cap off, start the engine and
let it warm up (no-load). Then, if
necessary, add more coolant mixture to
bring the level back up to the bottom of
the filler neck.
4. Reinstall the radiator cap and run the
engine a short time with the system
sealed while watching the temperature
gauge. If the temperature gauge goes
past 230 degrees and does not drop
back to approximately 190 degrees,
indicating the thermostat has opened,
allow the engine to cool down, check for
leaks and repeat the procedure.
This is a sealed system. If it becomes
necessary to add coolant mixture at a later
date, check for leaks and if the overflow
reservoir has not been drained completely,
add coolant mixture to the reservoir only. This
will help prevent air pockets in the radiator top
tank and lessen the chance of introducing
contaminates to the system.
Checking the Parking Brake
Visually check that no damage is found on
the lever, links, or switch belonging to the
parking brake. Perform a test drive and check
that there is a braking effect.
To adjust the parking brake:
1. Set brake lever (D) fully forward against
stop.
NOTE: Brake cross shaft MUST be properly
lubricated and both cross shaft and over-
center assemblies (F) MUST rotate freely.
2. Loosen jam nut (A) at rear of clevis (B)
and remove clevis pin (C) both sides of
mower.
3. Rotate over-center assembly (F) in
correct direction (clockwise on left
BAM-4
Parking brake in the disengaged position
Overflow bottle
BAM-20
Parking brake linkage.