37ModelsH71 & H84 TroubleshootingGuide
PROBLEM PROBABLECAUSE REMEDY PAGE
REF.
4. Driveshaft stuck in gear box
coupling.
a. Roundedcorners of drive
shaft,coupling, or both.
a. Callservice technician to
correctcause and replace the
necessarycomponents. Do
notlubricate end of drive
shaft.
----
b. Mixand lubricant collected in
drivecoupling.
b. Brushclean rear shell bearing
arearegularly.
33
5. Noproduct being dispensed
withdraw valve open and
machinein AUTO mode.
a. Freeze-upin mix inlet hole. a. Callservice technician to
adjusthopper temperature.
----
b. Beaterrotating counter-clock-
wise.
b. Contactservice technician to
correctrotation to clockwise.
----
c. Inadequate mixin hopper. c. Fillhopper with mix. 29
d. Airorifice not installed. d. Installin assembled inner air
tubes.
27
e. Innerair tube in the closed
position.
e. Placeinner air tube in the
openposition.
28
6. Producttoo stiff. a. Barrelviscosity set too cold. a. Contactservice technician to
adjustbarrel viscosity.
----
b. Airorifice not installed. b. Installin assembled air tubes. 27
c. Inner airtube in the closed
position.
c. Place innerair tube in the
openposition.
28
7. Producttoo soft. a. Barrelviscosity set too warm. a. Contactservice technician to
adjustbarrel viscosity.
----
b. Notenough air space around
unit(air-cooled).
b. Allowfor adequate air flow
acrossthe condenser(s).
1
c. Wornscraper blades. c. Replace regularly. 39
d. Dirtycondenser (air-cooled). d. Cleanregularly. 34
e. Out-of-datemix. e. Use only freshmix. 29
f. Loss ofcondenser cooling
water(water-cooled).
f. Locate cause of water loss
andcorrect.
34
8. Mixin hopper too cold. a. Temperatureout of
adjustment.
a. Callservice technician to
adjusthopper temperature.
----
9. Mixin hopper too warm. a. Temperatureout of
adjustment.
a. Callservice technician to
adjusthopper temperature.
----
b. Hoppercover not in position. b. Place cover in position. ----
c. Agitatornot installed, or
installedupside down.
c. Install agitator corre ctly. 27
d. Agitatornot rotating. d. Removeagitator and clean. 27
10.Freezing cylinder walls
scored.
a. Beaterassembly bent. a. Call service technicianto
repair or replace beater and
tocorrect cause of insufficient
mixin freezing cylinder.
----
b. Missingor worn front bearing. b. Installor replace frontbearing. 39