SeaLand 548+ VacuFlush Toilets - Manual (Page 11)

11
VacuFlush Pedal-Flush Toilet Maintenance/Winterizing/Service
Problem Possible Cause Service Instruction
4 . Water does not shut off in toilet
(toilet overflows) .
a . Not enough clearance between
pedal and top of water valve
cap .
b . Dirt lodged in water valve seal .
a . Adjust cam strap so clearance is
.06 in . (1 .5 mm) max .
b . Disassemble, clean water valve .
5 . Water does not enter toilet bowl
properly .
a . Insufficient water flow rate at
toilet .
b . Water valve clogged .
c . Plugged rim wash holes in toilet .
a . Check water flow rate at toilet .
Rate should be 2 gpm (7 .6 lpm) .
b . Remove and clean screen
located at inlet of water valve .
c . Clean holes . If still a problem,
replace the toilet bowl .
6 . Lifting foot pedal does not add
water to the bowl .
a . Too much clearance between
pedal and top of water valve
cap .
a . Adjust cam strap so clearance is
.06 in . (1 .5 mm) max .
7 . Water leaking from water valve . a . Water valve body cracked due to
freeze damage .
b . Water line connection is loose or
not seated properly .
c . Defective water valve .
d . Stripped threads .
a . Replace water valve .
b . Insure that threads are not
cross-threaded and tighten .
c . Replace water valve .
d . Replace water valve .
8 . Water leaking from rear of
toilet bowl .
a . Worn or defective vacuum
breaker .
b . Loose vacuum breaker or hose
clamp .
c . Cracked or defective toilet bowl .
a . Remove cap (if applicable) from
vacuum breaker . Flush toilet . If
water leaks during flush, vacuum
breaker needs replaced .
b . Secure vacuum breaker
connections .
c . Replace toilet bowl .
9 . Water is leaking from the base/
toilet connection .
a . Clamp ring may be loose .
b . Ball seals may be worn or
defective .
a . Remove pedestal cover and
tighten the clamp ring .
b . Replace ball seals .
10 . Vacuum pump running too
often between flushes .
a . Water leaks out of bowl
between flush ball and ball seal .
b . Vacuum line leak .
a . Leave small amount of water
in bowl . If water is sucked from
bowl, see problems 1 and 2 .
b . Tighten all connections at toilet,
vacuum generator or vacuum
holding tank (including hose
clamps and threaded spin nuts) .
If leak persists, contact
Customer Service .
11 . Vacuum pump will not
shut off .
a . A vacuum leak exists .
b . Insufficient vacuum (pump
creates less than 10 inches Hg) .
c . Faulty vacuum switch (pump
creates more than 10 in . Hg) .
d . Improper vacuum generator
wiring .
e . Bellows not pumping .
a . See problem 9b .
b . Isolate pump and use vacuum
gauge to check vacuum levels .
Could be a plugged discharge
line or worn duckbill valves .
c . Replace vacuum switch .
d . Refer to wiring diagram to check
for proper wiring .
e . Tighten set screw in eccentric to
motor shaft if needed . Check for
damage to bellows and motor
shaft . Replace if necessary .
PUMP SERVICE WARNINGS
WARNING –
ELECTRICAL SYSTEM
Turn off power before
servicing when power
isn’t required for test .
WARNING –
MOTOR STARTS
AUTOMATICALLY
Turn off power before
servicing .