Learjet 60 - Toilet

Learjet 60 Pilot’s Manual
PM-123 7-39
Change 6
A lavatory closet includes a coat rod, pull down shelf for brief cases,
and automatic lighting activated through a microswitch in the door.
The lavatory trash container can be accessed through the access panel
inside the lavatory closet. To empty the trash, open the closet panel,
grab the available “D” ring on the side of the container, and slide the
metal container straight out. When replacing the container, the “D”
ring must be flush against the container in order to close the access
panel.
Toilet
A flushing toilet is installed in the lavatory. This unit features a two-
compartment design isolating the flushing fluid from the waste. Rais-
ing the lid opens the sealed valve at the bottom of the bowl. Closing the
lid automatically flushes the toilet. Length of the flush cycle is con-
trolled automatically. Two electric pumps are used in this unit. The
flushing pump circulates the flushing fluid during the flush cycle. The
macerator/pump unloads the waste from the toilet during servicing
only.
Use only biodegradable toilet paper such as that
used in recreational vehicles. Do not use the toilet to
dispose of other paper products, cigarettes, sanitary
napkins, coffee grounds, etc. The macerator/pump
will become clogged with these items making exter-
nal servicing of the toilet impossible.
Servicing of the toilet is accomplished using servicing ports located on
the aircraft exterior. The macerator/pump is used to pump the waste
from the toilet while fresh flushing fluid is pumped into the toilet from
the servicing equipment. Refer to Chapter 12 in the maintenance man-
ual for servicing instructions.
Power to operate the flushing circuit is 28 VDC supplied through the 5-
amp TOILET circuit breaker on the pilot’s circuit breaker panel. Power
to operate the servicing circuit is 28 VDC supplied through the 10-amp
TOILET SERVICE circuit breaker on the pilot’s circuit breaker panel.
The TOILET SERVICE circuit breaker is powered from the left battery
bus; therefore, servicing can be accomplished without turning the bat-
tery switches on.
CAUTION