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TROUBLE SHOOTING GUIDE
Problem
Cause
I. Can opener will not
1. Cordset not plugged into outlet.
start.
2. Circuit breaker tripped (CSA & 230 volt models). 2. Reset breaker, if breaker continues to trip replace
3. Inoperative actuating switch (S228).
4. Motor brushes (B117) worn.
5. Motor may have failed.
6. Broken wires or loose terminals.
7. Broken two speed switch (S312).
8. Cordset has broken wire.
9. Blown fuse on cordset (Great Britain - 230 volt
motor)
II. Can opener
1. Clearance between back of knife and front of
rejects cans.
gear too large (see sketch).
2. Motor actuates too soon.
3. Knife not rotating.
III. Drive gear won't
1. Worn gear (G041).
turn can.
2. Clearance between top of gear and bottom of
knifeholder not correct.
3. Worn knife stud.
4. Weld broken on rear of frame or on housing
bracket located in side housing assembly (A273).
5. Gear in gear train broken loose from pinion.
6. Worn can stop on knifeholder.
IV. Slivers found on
1. Factory knife edge nicked or altered.
can lid or in food
product.
2. Knife doesn't rotate.
3. Sharp edge on knifeholder.
4. Drive gear is slipping or milling (removing metal
from can bead).
V. Knife won't sever
1. Dull knife (K045).
lid completely.
VI. Shield and drive
1. Shield latch not functioning.
gear will not lock in
place.
VII. Model 270C can
1. Friction pads need to be adjusted.
opener descends too
fast when knurled
knob is loosened.
Correction
1. Plug cordset into grounded outlet with same voltage as
listed on rating label located on back of opener.
breaker.
3. Replace switch.
4. Check for continuity and replace brushes and brush
springs (S158) as required.
5. Check motor and replace as necessary with appropriate
voltage motor.
6. Check wiring for continuity and repair or replace as
required.
7. Replace switch.
Check for continuity and replace as required.
Check fuse and replace as necessary.
1. With lever in locked down or actuating position, check
clearance between back of knife and front of gear using flat
feeler gage. Clearance should be .017-.022. Adjust
clearance by removing gear adapter (A055) and adding
stems (S318) as required.
2. Remove housing assembly from base and adjust on
position of motor by screwing switch actuator (S049) out or
by moving switch assembly until motor starts when knife is
at top of gear teeth
3. Remove knifeholder from front of housing. Remove knife
and clean knife, knife stud and knife mounting surface.
Lubricate knife stud and knife with non-sticking vegetable oil
or Vaseline and replace. Knife must rotate freely.
1. Replace gear.
2. Remove base and adjust clearance between top of gear
and bottom of knifeholder to .100-.105 by moving height
adjusting screw (A054) up or down to obtain correct
clearance. Clearance measured with lever in locked down
or actuating position.
3. Check for worn knife stud and replace knifeholder if stud
worn.
4. Remove base and check for broken welds. Repair as
required.
5. If motor runs but output gear will not rotate, check for
loose gears on pinion shafts. Replace as required.
6. Readjust height using height adjusting procedure.
1. Replace knife (K045) and "O" ring (R090).
2. Check knife and clean and lubricate as required (see II-
3).
3. Check knifeholder for sharp edge or grooves. Replace or
repair as required.
4. See Problem III-2.
1. Replace knife and "O" ring (R090).
1. Remove knifeholder, gear and shield. Check to make
sure latch located through hole in front of housing moves up
and down easily and spring is holding latch down. If latch is
not moving easily or spring is not functioning, disassemble
and remove motor and gear box assembly from housing and
repair latch as required.
1. Remove two black caps located on the side of the clamp
base and adjust spring plungers inward. Opener should not
descend faster than one inch or 25mm per minute.
M131
13
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