DISHWASHER and COMPACTOR

DISHWASHER and COMPACTOR
DISHWASHER and COMPACTOR
STUDY COURSE
UNDERSTANDING COMPACTOR:
• ELECTRICAL COMPONENTS and
CHECKING PROCEDURES
Module 5
LIT 4314193 Rev. A
WHIRLPOOL CORPORATION does not assume any responsibility
or any liability in connection with the use of this manual.
© 1990, 1998 WHIRLPOOL CORPORATION
All rights reserved. No portion of this book may be reproduced in any form without
written permission from WHIRLPOOL CORPORATION.
® The trademarks WHIRLPOOL ,
trademarks of Whirlpool Corporation.
,
, and FSP are registered
INTRODUCTION
The material presented in this module is intended to provide you with an understanding of the
fundamentals of dishwasher and trash masher® compactor servicing.
Major appliances have become more sophisticated, taking them out of the screwdriver and pliers
category. Their electrical circuits include several different types of automatic controls, switches,
heaters, valves, etc.. Semiconductors, solid-state controls, and other components usually
associated with radio and television electronic circuits are being engineered into automatic
washers, dryers, dishwashers and refrigerators.
The appliance technician is emerging into a professional status of his own. He must prepare
himself now to be able to perform his duties today as well as to retain his professionalism in the
future.
No longer is on-the-job training sufficient to prepare technicians for the complicated procedures
required for todays sophisticated appliances. This training can best be obtained through organized
classroom study and application. However, much of the knowledge necessary to service todays
appliances can be obtained through study courses. Completion of this and other courses will
provide you with sufficient understanding of appliances and their operation to enable you to do
minor service. It will also serve as a valuable stepping stone to more advanced study and on-thejob training to improve your servicing skills.
Information contained in this module is used on WHIRLPOOL® appliances.
1
TABLE of CONTENTS
PAGE
CHAPTER 1 ......................................................................................... 3
ELECTRICAL COMPONENTS
*TEST ...................................................... See Test Book LIT4314204
*NOTE:
2
We recommend taking the TEST for MODULE 5, right
after studying it.
CHAPTER 1
ELECTRICAL COMPONENTS
LOCK/OFF/ON
START SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
POWER
SCREWS
RAM
DRAWER
TILT
SWITCH
CENTRIFUGAL
SWITCH
DRAWER
TILT SWITCH
CHAIN
LOCK/OFF/ON
START SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
MOTOR
DRAWER
SAFETY SWITCH
1972 TO 1992 MODELS
RAM
DRAWER
CENTRIFUGAL
SWITCH
CHAIN
MOTOR
1992 TO CURRENT MODELS
3
ROTARY SWITCH (Lock/Off/On/Start)
ON POSITION
This switch, located on the right side behind the
console escutcheon starts, stops, and locks the compactor.
Step9 Touch and hold one ohmmeter probe to the
terminal V.
Step10 Touch the other ohmmeter probe to the
terminal Y.
A safety knob is also used with this switch. The
knob can be removed when the compactor is locked
and not in use.
Step11 The ohmmeter should show an open
circuit. If not, the switch is bad and needs replacing.
CHECKING PROCEDURE
Step12 Touch and hold one ohmmeter probe to
the terminal V.
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step13 Touch the other ohmmeter probe to the
terminal T-R.
Step14 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step 1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
START POSITION
Step15 Touch and hold one ohmmeter probe to
the terminal V.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Step16 Touch the other ohmmeter probe to the
terminal Y.
OFF POSITION
Step3 Touch and hold one ohmmeter probe to the
terminal V.
Step17 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step4 Touch the other ohmmeter probe to the
terminal T-R.
Step18 Touch and hold one ohmmeter probe to
the terminal V.
Step5 The ohmmeter should show an open
circuit. If not, the switch is bad and needs replacing.
Step19 Touch the other ohmmeter probe to the
terminal T-R.
Step6 Touch and hold one ohmmeter probe to the
terminal V.
Step20 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step7 Touch the other ohmmeter probe to the
terminal Y.
Step21 Reconnect all the wires to the proper
terminals as previously marked.
Step8 The ohmmeter should show an open
circuit. If not, the switch is bad and needs replacing.
L1
N
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
KEY/LOCK SAFETY SW.
P
STOP SWITCH
V
START SWITCH
Y
V
BR
TOP LIMIT
SWITCH
BR
Y
DRAWER TILT
SWITCH
R
GY
MOTOR
CENTRIFUGAL
BK
SWITCH
Y
R
START
RUN
DRIVE
MOTOR
4
Y
DIRECTIONAL Y BU
SWITCH
GY
BU
W
W
MOTOR
PROTECTOR
Step3 With the key lock in the OFF position,
touch and hold one of the ohmmeter probes to one of
the terminals.
LOCK and KEY SWITCH
This switch, located on the console turns the compactor ON or OFF when the key is turned. Earlier
models, the lock (key) switch was separate from the
start/stop switch. Now it’s all in one, that is; you
have the Lock, Off, On, and Start in one switch.
Step4 Touch the other ohmmeter probe to the
other terminal.
Step5 The ohmmeter should show an open
circuit with the key lock in the OFF position. If not,
the switch is bad and needs replacing.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step6 With the key lock in the ON position,
touch and hold one of the ohmmeter probes to one of
the terminals.
Step7 Touch the other ohmmeter probe to the
other terminal.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step8 The ohmmeter should show ZERO resistance (continuity) with the key lock in the ON position, If not, the switch is bad and needs replacing.
Step9 Reconnect all the wires to the proper
terminals as previously marked.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
L1
N
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
KEY/LOCK SAFETY SW.
P
STOP SWITCH
V
START SWITCH
Y
V
BR
TOP LIMIT
SWITCH
BR
Y
DRAWER TILT
SWITCH
Y
DIRECTIONAL Y BU
SWITCH
GY
R
GY
MOTOR
CENTRIFUGAL
BK
SWITCH
Y
R
START
RUN
DRIVE
MOTOR
BU
W
W
MOTOR
PROTECTOR
5
DENSE PACK SWITCH
Step4 Touch and hold one ohmmeter probe to the
terminal O/B or O-BK (1).
This rocker type switch, located in the console,
causes the ram to put constant pressure on trash
keeping it from springing back.
Step5 Touch the other ohmmeter probe to the
terminal O (2).
This ram will stay in the down position. Remember,
the drawer can not be opened with the ram down.
Step6 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
To raise the ram, either turn the key knob to
START or you can move the cycle selector back to
the NORMAL position.
Step7 There should be an open circuit between
the terminals O (2) and Y (3), and between the
terminals Y (3) and O/B or O-BK (1).
CHECKING PROCEDURE
Step8 Push-in on the rocker switch so the dense
switch is OFF (red not shown).
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step9 Touch and hold one ohmmeter probe to the
terminal O (2).
Step10 Touch the other ohmmeter probe to the
terminal Y (3).
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step11 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step12 There should be an open circuit between
terminals O (2) and O/B or O-BK (1), and between
terminals Y (3) and O/B or O-BK (1).
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Step3 Push-in on the rocker switch so the dense
switch is ON (red showing).
Step13 Reconnect all the wires to the proper
terminals as previously marked.
N
L1
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
CCW START
MOTOR CENTRIFUGAL SW.
Y
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
Y
DRAWER TILT SW.
BR
BU
Y
RUN
Y
MOTOR
PROTECTOR
DRIVE MOTOR
6
W
W
Step6 Press the button (lever) all the way, then
touch and hold one of the ohmmeter probes to one of
the terminals.
TOP LIMIT SWITCH
This top limit switch has only one button and lever
and is located in the console escutcheon area. As the
ram travels up the power screws, the ram comes in
contact with the lever pushing the button in, shutting the compactor OFF.
Step7 Touch the other ohmmeter probe to the
other terminal.
Step8 The ohmmeter should show an open
circuit with the button (lever) pressed all the way. If
not, the switch is bad and needs replacing.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step9 Reconnect all the wires to the proper
terminals as previously marked.
ADJUSTMENT
Step 10 Turn the compactor on and run it
through a complete cycle.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step11 Open the drawer and measure the distance from the top of the drawer to the bottom of the
ram cover. You should have a 1/4 -inch clearance.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Slide the bottom of the switch to readjust.
Step3 With the button (lever) out, touch and hold
one of the ohmmeter probes to one of the terminals.
A.Toward front of compactor will cause the ram
to stop in a lower position.
B.Toward back of compactor will cause the ram
to stop in a higher position.
Step4 Touch the other ohmmeter probe to the
other terminal.
Step5 The ohmmeter should show ZERO resistance (continuity) with the button (lever) out. If not,
the switch is bad and needs replacing.
L1
N
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
KEY/LOCK SAFETY SW.
P
STOP SWITCH
V
START SWITCH
Y
V
BR
TOP LIMIT
SWITCH
BR
Y
DRAWER TILT
SWITCH
Y
DIRECTIONAL Y BU
SWITCH
GY
R
GY
MOTOR
CENTRIFUGAL
BK
SWITCH
Y
R
START
RUN
DRIVE
MOTOR
BU
W
W
MOTOR
PROTECTOR
7
DIRECTIONAL SWITCH
The directional switch (double pole, double throw)
has only one button and lever and is located in the
console escutcheon area. As the ram travels approx.
3/4 inches down the power screws, the switch contacts change position. When the ram bottoms and
the motor stalls or the circuit is interrupted, the
motor will reverse and the ram will start traveling
up the power screws. As the ram comes in contact
with the switch lever, the lever pushes the button
in, the contacts once again change the direction of
electrical flow through the motor windings.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step3 Press the button (lever) all the way, then
touch and hold one of the ohmmeter probes to the
terminal R.
Step4 Touch the other ohmmeter probe to the
bottom Y terminal.
Step5 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
all the way. If not, the switch is bad and needs
replacing.
Step6 Leave the one ohmmeter probe on the
terminal R. With the button (lever) pressed all the
way, touch the other ohmmeter probe to the rest of
the terminals (not bottom Y). They should show an
open circuit; it not, the switch is bad and needs
replacing.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
L1
N
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
KEY/LOCK SAFETY SW.
P
STOP SWITCH
V
START SWITCH
Y
V
BR
TOP LIMIT
SWITCH
BR
Y
DRAWER TILT
SWITCH
R
GY
MOTOR
CENTRIFUGAL
BK
SWITCH
Y
R
START
RUN
DRIVE
MOTOR
8
Y
DIRECTIONAL Y BU
SWITCH
GY
BU
W
W
MOTOR
PROTECTOR
Step7 Press the button (lever) all the way, then
touch and hold one of the ohmmeter probes to the
terminal GY.
Step8 Touch the other ohmmeter probe to the top
BU terminal.
Step9 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
all the way. If not, the switch is bad and needs
replacing.
Step10 Leave the one ohmmeter probe on the
terminal GY. With the button (lever) pressed all the
way, touch the other ohmmeter probe to the rest of
the terminals (not top BU). They should show an
open circuit; it not, the switch is bad and needs
replacing.
Step11 With the button (lever) out, touch and
hold one of the ohmmeter probes to the terminal R.
Step12 Touch the other ohmmeter probe to the
bottom BU terminal.
Step13 The ohmmeter should show ZERO resistance (continuity) with the button (lever) out. If not,
the switch is bad and needs replacing.
Step14 Leave the one ohmmeter probe on the
terminal R. With the button (lever) out, touch the
other ohmmeter probe to the rest of the terminals
(not bottom BU). They should show an open circuit;
it not, the switch is bad and needs replacing.
Step15 With the button (lever) out, touch and
hold one of the ohmmeter probes to terminal GY.
Step16 Touch the other ohmmeter probe to the
top Y terminal.
Step17 The ohmmeter should show ZERO resistance (continuity) with the button (lever) out. If not,
the switch is bad and needs replacing.
Step18 Leave the one ohmmeter probe on the
terminal GY. With the button (lever) out, touch the
other ohmmeter probe to the rest of the terminals
(not top Y). They should show an open circuit; it not,
the switch is bad and needs replacing.
Step19 Reconnect all the wires to the proper
terminals as previously marked.
9
POSITION 1
COMBINATION SWITCH (Top Limit
and Directional)
Step3 Touch and hold one ohmmeter probe to the
terminal Y.
This type combination switch has only one button
and lever and is located in the console escutcheon
area. As the ram travels up the power screws, the
ram comes in contact with the lever pushing it in
somewhat changing the direction of electricity flow
through the drive motor windings. As the ram travels farther up the power screws, it pushes the lever
in all the way and shuts the compactor OFF. As the
ram travels downward 1/2 inch, the top limit switch
closes a parallel circuit to the start switch. At 3/4
inch the centrifugal switch opens and the combination switch changes the circuit to the reverse start
windings in the motor.
Step4 Touch the other ohmmeter probe to the
terminal GY.
Step5 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step6 Touch and hold one ohmmeter probe to the
terminal BR.
Step7 Touch the other ohmmeter probe to the
terminal O or V.
Step8 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step9 Touch and hold one ohmmeter probe to the
terminal R.
Step10 Touch the other ohmmeter probe to the
terminal Y.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step11 The ohmmeter should show an open
circuit. If not, the switch is bad and needs replacing.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
N
L1
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
CCW START
MOTOR CENTRIFUGAL SW.
Y
BR
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
Y
DRAWER TILT SW.
BU
Y
RUN
Y
MOTOR
PROTECTOR
DRIVE MOTOR
10
W
W
POSITION 2
POSITION 3
Step12 Press the button (lever) somewhat or until you here the first click, then touch and hold one
of the ohmmeter probes to the terminal Y.
Step21 With the button (lever) pressed all the
way, touch and hold one of the ohmmeter probes to
the terminal R.
Step13 Touch the other ohmmeter probe to the
terminal R.
Step22 Touch the other ohmmeter probe to the
terminal Y.
Step14 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
somewhat or to the first click. If not, the switch is
bad and needs replacing.
Step23 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
all the way. If not, the switch is bad and needs
replacing.
Step15 Touch and hold one ohmmeter probe to
the terminal O or V.
Step24 With the button (lever) pressed all the
way, touch and hold one of the ohmmeter probes to
the terminal GY.
Step16 Touch the other ohmmeter probe to the
terminal BR.
Step17 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
somewhat or to the first click. If not, the switch is
bad and needs replacing.
Step18 Touch and hold one ohmmeter probe to
the terminal GY.
Step19 Touch the other ohmmeter probe to the
terminal Y.
Step20 The ohmmeter should show an open
circuit with the button (lever) pressed somewhat or
to the first click. If not, the switch is bad and needs
replacing.
Step25 Touch the other ohmmeter probe to the
terminal Y.
Step26 The ohmmeter should show an open
circuit with the button (lever) pressed all the way. If
not, the switch is bad and needs replacing.
Step27 With the button (lever) pressed all the
way, touch and hold one of the ohmmeter probes to
the terminal BR.
Step28 Touch the other ohmmeter probe to the
terminal O or V.
Step29 The ohmmeter should show an open
circuit with the button (lever) pressed all the way. If
not, the switch is bad and needs replacing.
Step30 Reconnect all the wires to the proper
terminals as previously marked.
11
MOTOR WITH SINGLE
START WINDING
CENTRIFUGAL SWITCH
This part is located on the drive motor. It is used in
getting voltage to the drive motor start and run
windings at the same time. As the drive motor increases in speed, an actuating arm inside the drive
motor drops, causing the button on the centrifugal
switch to pop out, dropping the voltage to the start
windings.
PROTECTOR
RUN
START
RED
BLUE
WHITE
BLACK
YELLOW
Because of different drive motor brands used, it is
necessary when replacing the drive motor centrifugal switch, that you use the same brand as your
drive motor.
3
R
Y
SWITCH O/BK
W
CHECKING PROCEDURE
4
BK
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
2
GY
MOTOR WITH DUAL
START WINDING
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
PROTECTOR
RUN
START 2
BROWN
GRAY
RED
BLUE
For drive motors with 1 start winding, see
steps 3-10.
JUMPER
WIRE
For drive motors with 2 start windings, see
steps 11-18
3
R
Y
SWITCH O/BK
WHITE
YELLOW
START 1
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
1
1
W
4
BR
2
BU
NOTE: LEAVE JUMPER WIRE INTACT
Step3 Touch and hold one ohmmeter probe to the
terminal BK or number 4.
.10 MIN.
Step4 Touch the other ohmmeter probe to the
terminal GY or number 2.
Step5 With the centrifugal switch button pushed
in, the ohmmeter should show ZERO resistance
(continuity). If not, the switch is bad and needs
replacing.
MOTOR IDLE
12
MOTOR RUNNING
Step6
Terminal Y to O/BK should be open.
Step7 Touch and hold one ohmmeter probe to the
terminal BK or number 4.
Step14
Terminal Y to O/BK should be open.
Step15 Touch and hold one ohmmeter probe to
the terminal BR or number 4.
Step8 Touch the other ohmmeter probe to the
terminal GY or number 2.
Step16 Touch the other ohmmeter probe to the
terminal BU or numbers 1 or 2.
Step9 With the centrifugal switch button out, the
ohmmeter should show an open circuit. If not, the
switch is bad and needs replacing.
Step17 With the centrifugal switch button out,
the ohmmeter should show an open circuit. If not,
the switch is bad and needs replacing.
Step10 Terminal Y to O/BK should show ZERO
resistance (continuity).
Step18 Terminal Y to O/BK should show ZERO
resistance (continuity).
Step11 Touch and hold one ohmmeter probe to
the terminal BR or number 4.
Step19 Reconnect all the wires to the proper
terminals as previously marked.
Step12 Touch the other ohmmeter probe to the
terminal BU or numbers 1 or 2.
Step 13 With the centrifugal switch button
pushed in, the ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
N
L1
W
120 VOLTS
BK
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
CCW START
MOTOR CENTRIFUGAL SW.
Y
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
Y
DRAWER TILT SW.
BR
BU
Y
RUN
Y
MOTOR
PROTECTOR
W
W
DRIVE MOTOR
13
DRIVE MOTOR
Step9 Touch and hold one ohmmeter probe to the
terminal on the (BU) blue wire.
This motor, located in the lower back, is used to
drive the power screws, causing the ram to move up
or down.
Step10 Touch the other ohmmeter probe to the
terminal on the (W) white wire.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
NOTE: DO NOT remove the white or blue wire
coming out of the motor. These wires are connected
to the overload protector.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the centrifugal switch. This procedure should assure that the right wire is reconnected to the right
terminal after checking or replacement.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Step3 Touch and hold one ohmmeter probe to the
terminal on the (BU) blue wire.
Step4 Touch the other ohmmeter probe to the
terminal on the (Y) yellow wire.
Step5 The ohmmeter should show a reading
between 3-5 ohms on the ohms scale. If not, the
drive motor is bad and needs replacing.
Step6 Touch and hold one ohmmeter probe to the
terminal on the (Y) yellow wire.
Step7 Touch the other ohmmeter probe to the
terminal on the (W) white wire.
Step8 The ohmmeter should show a reading
between 3-5 ohms on the ohms scale. If not, the
drive motor is bad and needs replacing.
14
Step11 The ohmmeter should show ZERO resistance (continuity). If not, the drive motor is bad and
needs replacing.
Step12 Touch and hold one ohmmeter probe to
the terminal on the (R) red wire.
Step13 Touch the other ohmmeter probe to the
terminal on the (GY) gray wire.
Step14 The ohmmeter should show a reading
between 3-7 ohms on the ohms scale. If not, the
drive motor is bad and needs replacing.
Step15 Touch and hold one ohmmeter probe to
the terminal on the (R) red wire.
Step16 Touch the other ohmmeter probe to the
terminal on the (BK) black, the (BR) brown, or the
(O) orange wire.
Step17 The ohmmeter should show a reading
between 1-4 ohms on the ohms scale. If not, the
drive motor is bad and needs replacing.
Step18 Touch and hold one ohmmeter probe to
the terminal on the (GY) gray wire.
Step19 Touch the other ohmmeter probe to the
terminal on the (BK) black, the (BR) brown, or the
(O) orange wire.
Step20 The ohmmeter should show a reading
between 1-4 ohms on the ohms scale. If not, the
drive motor is bad and needs replacing.
GROUNDING CHECK
Step21 Touch and hold one ohmmeter probe to
the metal frame of the drive motor.
Step22 One at a time, touch the other ohmmeter
probe to all the terminals on the wires coming out of
the drive motor.
Step23 The ohmmeter should show an open
circuit when touching these terminals. If not, the
drive motor is bad and needs replacing.
Step24 Reconnect all the wires to the proper
terminals as previously marked.
N
L1
W
120 VOLTS
BK
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
Y
CCW START
MOTOR CENTRIFUGAL SW.
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
Y
DRAWER TILT SW.
BR
BU
Y
RUN
Y
MOTOR
PROTECTOR
W
W
DRIVE MOTOR
15
DRAWER SAFETY SWITCH
Step3 With the button (lever) out, touch and hold
one of the ohmmeter probes to one of the terminals.
This drawer safety switch is located in the back
right side, and prevents the ram from operating if
the drawer is removed or pulled out somewhat.
Step4 Touch the other ohmmeter probe to the
other terminal.
Step5 The ohmmeter should show an open
circuit with the button (lever) out. If not, the switch
is bad and needs replacing.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step6 Press the button (lever) all the way, then
touch and hold one of the ohmmeter probes to one of
the terminals.
Step7 Touch the other ohmmeter probe to the
other terminal.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step8 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
all the way. If not, the switch is bad and needs
replacing.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Step9 Reconnect all the wires to the proper
terminals as previously marked.
N
L1
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
Y
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
LOCATED IN-LINE AT
END OF DRAWER TRACK
CCW START
MOTOR CENTRIFUGAL SW.
Y
DRAWER TILT SW.
BR
BU
Y
RUN
Y
MOTOR
PROTECTOR
DRIVE MOTOR
LOCATED INSIDE AND
LOWER BACK OF FRAME
16
W
W
Step3 With the button (lever) out, touch and hold
one of the ohmmeter probes to one of the terminals.
DRAWER TILT SWITCH (Lever)
This drawer tilt switch is located in the back left
side, and in-line with the end of the drawer track. If
the drawer is open or tilted during compaction because of improper loading, the compactor will stop.
To restart the compactor the start switch must be
restarted. When the ram comes to the top, open
drawer and redistribute the trash.
Step4 Touch the other ohmmeter probe to the
other terminal.
Step5 The ohmmeter should show an open
circuit with the button (lever) out. If not, the switch
is bad and needs replacing.
Step6 Press the button (lever) all the way, then
touch and hold one of the ohmmeter probes to one of
the terminals.
CHECKING PROCEDURE
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Step7 Touch the other ohmmeter probe to the
other terminal.
Step8 The ohmmeter should show ZERO resistance (continuity) with the button (lever) pressed
all the way. If not, the switch is bad and needs
replacing.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step9 Reconnect all the wires to the proper
terminals as previously marked.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
L1
N
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
KEY/LOCK SAFETY SW.
P
STOP SWITCH
V
START SWITCH
Y
V
BR
TOP LIMIT
SWITCH
BR
Y
DRAWER TILT
SWITCH
Y
DIRECTIONAL Y BU
SWITCH
GY
R
GY
MOTOR
CENTRIFUGAL
BK
SWITCH
Y
R
START
RUN
DRIVE
MOTOR
BU
W
W
MOTOR
PROTECTOR
17
Step3 Push in on the plunger of the switch which
simulates the drawer being closed.
DRAWER TILT SWITCH (Plunger)
This part is located on the front of the frame. When
the drawer is closed, the plunger is depressed. The
plunger contacts are open at this time. As the ram
starts its downward travel and the trash causes the
door to pop open somewhat, the contacts close causing current flow through the reverse start windings
in the motor. This causes the motor to stall, reverse
and return the ram to the top.
Step4 Touch and hold one ohmmeter probe to the
terminal BU.
Step5 Touch the other ohmmeter probe to the
terminal BR.
Step6 The ohmmeter should show an open
circuit with the plunger pressed. If not, the switch
is bad and needs replacing.
CHECKING PROCEDURE
Step7
open.
Obtain an ohmmeter from your local store. We will
be doing RESISTANCE checks. This is the safest
way because the compactor is unplugged from the
power source and avoids the possibility of receiving
an electrical shock.
Leave the plunger out as if the drawer is
Step8 Touch and hold one ohmmeter probe to the
terminal BU.
Step9 Touch the other ohmmeter probe to the
terminal BR.
Step1 Remove one wire at a time, carefully labeling each wire according to the terminal marking on
the switch. This procedure should assure that the
right wire is reconnected to the right terminal after
checking or replacement.
Step10 The ohmmeter should show ZERO resistance (continuity). If not, the switch is bad and
needs replacing.
Step2 Set the ohmmeter scale to the lowest ohms
setting and ZERO the meter.
Step11 Reconnect all the wires to the proper
terminals as previously marked.
N
L1
120 VOLTS
BK
W
DRAWER SAFETY SW.
T-R
RUN SWITCH
TOP LIMIT/DIRECTIONAL
SWITCH
V
START SW.
V
R
CW START
R
GY
Y
GY
O/Y/BR
Y
CCW START
MOTOR CENTRIFUGAL SW.
Y
O-BK
BR
Y
BU
DENSE PAK
SWITCH
O-BK
Y
DRAWER TILT SW.
BR
BU
Y
RUN
Y
MOTOR
PROTECTOR
DRIVE MOTOR
18
W
W
NOTES
19
NOTES
20
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