GMC MOTORHOME 1978 User Manual

the foreign material . Avoid damaging the
rubber seal while cleaning .
2 . PROBLEM :
Toilet leaks . There is water on
the floor .
Specify the symptom .
Determine if water
is leaking from :
a . Thevacuum breaker .
b . The
water control valve .
c . Bowl to
mechanism seal (if this is the
problem,
the water would not stay in
the bowl) .
d . Closet flange
base seal .
SOLUTION :
a . The vacuum breaker
- if the vacuum
breaker leaks
when flushing the toilet, re-
place the vacuum
breaker . (Toilet must
be removed
.)
b . If the
vacuum breaker leaks when
the
toilet
is not in operation, replace
the
water
control valve .
c . Leaks
at the bowl to mechanism
seal-re-
move mechanism, and
replace mechanism
seal .
d .
Leaks at closet flange
area-check front
and rear closet
flange nuts for tightness .
If leak
continues remove the toilet, check
the closet
flange height . The height
should
be
between 1/4" and 7/16"
above the
floor . Adjust closet flange
height accord-
ingly and replace closet
flange seal .
3 . PROBLEM :
Foot
pedal operates harder than
normal
or blade sticks .
SOLUTION :
Dry blade and
apply a light film of Sili-
cone
spray to blade .
4 .
PROBLEM :
Toilet fails
to flush with pedal depressed .
CAUSE :
Ball
valve sheared off due
to trying to
flush toilet when water
is frozen in valve .
SOLUTION :
Replace ball valve
. (Toilet must be re-
moved .)
Routine
maintenance is not required on
the
recirculating toilet other than recharging which
is described in OPERATION
OF LIVING
AREA FACILITIES section earlier in
this man-
ual . If a problem occurs, check and make
the
appropriate correction .
1 . PROBLEM
:
2 . PROBLEM :
RECIRCULATING TOILET
Toilet wobbles .
CAUSE :
a . Closet retaining
nuts not tight .
b . Mounting brackets not seated to floor .
c . Closet flange too high .
d .
Mounting surface uneven .
SOLUTION :
a . & b . Tighten
closet retaining nuts .
c .
& d . Check closet flange height by laying
straight edge across flange and meas-
uring gap between straight edge and
floor at four (4) leg locations (1/4
to 7/16 inch is recommended) .
Flushing action is weak or noisy .
CAUSE :
a . Pump is running backwards (reversed
wiring polarity) .
b . Cycling unit without enough charge water .
c . Pump damaged by
continuous dry opera-
tion .
SOLUTION :
a . The black wire is positive (hot) and the
white wire is negative (ground) .
b . Charge to proper level (3 gallons) . Fill to
charge level (c) on indicator lens .
c . Replace pump assembly .
3 .
PROBLEM :
Lack of capacity .
CAUSE :
Too
much charge water .
SOLUTION :
Use three gallons only to charge . Fill to
charge level (c) on indicator lens .

GMC MOTORHOME 1978 Specifications

General

Brand	GMC
Model	MOTORHOME 1978
Category	Motorhomes
Language	English