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Model 390Operating Procedures
Section 8 Troubleshooting Guide
PROBLEM PROBABLE CAUSE REMEDY PAGE
REF.
1. No product being
dispensed with draw valve
opened.
a. Improper mixing of
product.
a. Carefully follow directions
for mixing product.
-- --
b. Mix low condition. b. Add mix to mix hopper. 6
2. Product too thin. a. Improper mixing of
product.
a. Carefully follow directions
for mixing product.
-- --
b. Missing, incorrect ly
installed or bad scraper
blades.
b. Replace or i nstall correctly. 7
c. Consistency control needs
adjusting.
c. Contact a service
technician.
-- --
3. Product too stiff. a. Consistency control knob
needs adjusting.
a. Contact a service
technician.
-- --
b. Improper mixing of
product.
b. Carefully follow directions
for mixing product.
-- --
c. Insufficient product i n the
freezing cylinder .
c. Keep hopper full of mix. 6
4. Scored walls of freezing
cylinder.
a. Broken beater pins. a. Repair or replace beater
assembly.
-- --
b. Gear unit out of alignment. b. Contact a service
technician.
-- --
c. Bent beater assembly. c. Repair or replace. -- --
d. Missing front bearing. d. Replace or i nstall front
bearing.
7
5. Unable to remove drive
shaft.
a. Lubrication o n hex end of
drive shaft.
a. Do not lubricate the hex
end. Contact service
technician for removal.
7
b. Rounded corners of the
drive shaft, drive coupling
or both.
b. Replace drive shaft, drive
coupling o r both.
-- --
6. Excessive mix leakage in
rear drip pan.
a. Improper or inadequate
lubrication on drive shaft
o-ring or seal on drive
shaft.
a. Use an approved food
grade lubricant (example:
Taylor Lube) and follow
lubrication procedures.
7
b. Bad or missing o-ring or
seal on drive shaft.
b. Replace rubber parts every
3 months.
16
c. Worn rear shell bearing. c. Contact a service
technician for replacement.
-- --