Blakeslee D-8 Service Manual

OWNER'S MANUAL

BLAKESLEE

Crockford Boulevard

BLAKESLEE

D-8/DD-8

HIGH TEMP

DISHWASHER

1844 South Laramie Avenue

Chicago, IL 60804

Phone: [phone]

66

Scarborough Ontario, Canada M1R 3C3

Phone: [phone]

Listed below are items NOT covered under warranty.

1. Lighting of Gas Pilots.
At the time of installation the gas pilots and burners should be adjusted. Continued failures of pilot lights would indicate dirty gas lines, improper

original adjustment or intermittent drafts blowing out the flame.

2. Replacing Fuses or Resetting Overloads.
Replacing a blown fuse or resetting an open overload breaker is a very simple procedure and is the owner's responsibility. If the machine

continues to blow fuses or open the overload breaker, contact you nearest authorized Blakeslee Service Center.

3. Adjusting Tank Heats.
Heat adjustments are covered in this Manual and must be adjusted depending upon desired results.

4. Proper Loading of Dishes.
It is important the machine owner's personnel observe the instructions outlined in paragraph 2-2.

5. Cleaning Drain Valves.
Foreign articles lodged in the drain valve seat should be removed as a part of normal daily cleaning.

6. Cleaning Rinse or Wash Nozzles and Line Strainers.
Keeping a dishwasher clean and removing obstructions from the nozzles and line strainers will be a periodic function of the machine owner's

personnel. The cleaning periods will vary depending upon impurities in the water supply and cleanliness of the washing operation.

7. Final Rinse Water. (High Temperature Dishwashers Only)
Most frequent of all complaints in any dishwashing machine is that of poor final rinse. It is the responsibility of the owner to provide 180° to 195°

(plus) water at 15-25 Ib. flow pressure through clean unobstructed water lines. If the machine has a factory equipped final rinse water booster,
the owner must supply the booster with a minimum of 140° temperature water.

8. Electric Boosters and Garbage Disposals.
Although these units may have been purchased with the machine, they are warranted by the individual manufacturer. Consult the nearest factory

authorized representative for these particular items.

9. Overtime Charges.
All warranty work is performed during normal daytime working hours (8 AM — 4:30 PM Monday through Friday). If warranty is requested at other

times, the owner will be required to pay the overtime premium for all labor charges.

10. Chemical Dispenser. (Low Temperature Dishwashers Only)
Replacement and lubrication of the blue hose used in the chlorine dispenser pump is a simple procedure and the owner's responsibility. Refer to

Owners Manual for further instructions.

Blakeslee

Service Department

TABLE OF CONTENTS

SECTION 1

1-1 General Description 1

SECTION 2 INSTALLATION

2-1 Plumbing and Electrical Connections 3
2-2 Location 3
2-3 Dish Table 3
2-4 Electrical Connections 3
2-5 Pump Rotation 3
2-6 Fill Rinse 4
2-7 Drains 5
2-8 Heating Systems 5
2-9 Electric Heater 5
2-10 Gas Heater 5
2-11 Steam Injection Heater 9
2-12 Steam Coil Heater 9
2-13 Electrical Detergent & Rinse Injector Connections 9

SECTION 3 OPERATION

3-1 Preparing Dishwasher for Operation 11
3-2 Auto Tank Fill 11
3-3 Timed Tank Fill 12
3-3A Tank Selection (DD-8 only) 12
3-4 Soiled Dish Table Operation 12
3-5. Loading Machines 13
3-6 Operating the Dishwasher 13
3-7 Shut down and Cleaning 14

SECTION 4 MAINTENANCE AND LUBRICATION

DESCRIPTION

4-1 Motor 15
4-2 Pump 15
4-3 Doors 15
4-4 Wash Arms 15
4-5 Final Rinse Arm and Nozzles 15
4-6 Pump Motor Overload Protection 15
4-7 Troubleshooting 15

SECTION 5 OPTIONAL EQUIPMENT

5-1 General 19
5-2 Hot Water Boosters 19
5-17 Machine Mounted Booster 23
5-20 Automatic Tank Fill 24
5-21 Timed Fill 24
5-22 Door Safety Lock 24
5-23 Tank Selection (DD8 only) 24

SECTION 6 ILLUSTRATED PARTS LIST

See Separate Table of Contents List 25

1-1. GENERAL DESCRIPTION

Figure

1-2.

Door Safety Switch

The machine door is counterbalanced and opens to provide easy
access to the inside of the machine.

SECTION 1

DESCRIPTION

1-3. MOTOR

Machine is equipped with a 1 HP 1725 RPM motor. D8's have one,
DD8's have 2.

The machine can be easily changed from a straight thru to corner
model by the simple movement of one track rail. (See Figure 1-1).

If your machine is a single D8, and is to be used in a corner, the right
side must always be positioned against one wall (see Figure 2-5).
DD8 machines, if used in a corner, should have been ordered so that
the operating controls are placed in the control box of the tank that is
farthest from the corner. (Left tank or right tank.)

1-2. DOOR SAFETY SWITCH

All machines are equipped with a door safety switch. (See Figure 1 -

2). The machine will not operate when door is open. If the door is
accidentally opened during an automatic cycle, the machine
operation will stop. (Some models may be equipped with Optional
Door Safety Lock. See para. 5-22 for description of lock.) When the
door is closed, the operator must press the start button again to finish
the wash cycle. If the door was opened when the machine was in the
rinse cycle, the machine will automatically finish the rinse cycle when
the door is closed again.

1-4. CONTROL CIRCUIT

All machines are supplied with a 115 volt, A.C. control circuit.

1.5. VACUUM BREAKER

The fill line has a vacuum breaker installed in it to prevent any back
flow of water into the fresh water supply line. If a negative pressure
develops in the supply line, the loss of pressure permits a check
valve inside the breaker to drop, sealing the orifice while at the
same time a vent opens admitting air to the system to break the
vacuum.

1-6. HEATERS

Wash tank water is heated by electricity, steam coil, steam
injection, or gas. Electrically heated machines are available in 208,
240, 440, or 480 volts only.

Figure 1-1. Relocating Track to Convert Straight-thru to

Corner Model.

1

1.7. AUTOMATIC OR TIMED TANK FILLED

L.P. Gas

W-0-17967

Steam Coil

W-3-13129

(Optional)

All machines can be supplied with an automatic or timed
tank fill. (See para. 5-20 & 5-21 for description).

Following are the complete assemblies needed for tank heat
conversion.

Natural Gas W-0-17966

1-8. Final Rinse Boosters (Optional)

Machine can be equipped with an optional built -in electric
booster, remote mounted electric booster, or remote
mounted steam booster. These boosters are designed to
raise rinse water temperature from 140° F to 180-195°.
(Refer to para. 5-2 for description).

1-9. Heat and Voltage Field Changeover
One of the most desirable features of the D8 Dishwasher is
it can easily be field converted to different tank heats and
voltage. All of the tank heats fit on the same mounting
bracket. A ll that is necessary to convert from one type of
heat to another is to order the kit for the type of heat desired
and make the wiring changes as described below, in the
parts list pages of this manual and the wiring diagram, W-3-

17715. figure 15F -20 of Modular Dishwasher Service
Manual. (NOTE: to keep the cost of conversion as low as
possible, it will be necessary to purchase a few electrical
components such as flexible waterproof conduit, wire, etc.
locally).

Steam Injector W-3-12988
Electric W-0-95377

NOTE: Electric heat not available for 115 volt machines.

Additional conversion installation note.

When changing either to or from single to three phase electrical
power, the wash pump motor must be changed. The motor protection
fuses must also be changed. See parts description in figure 6-11 and
wiring diagram, figure 15F-20 of Modular Dishwasher Service
Manual.

When changing from 115 volts to 208, 230, 440, or 480 volts, single
or 3 phase, a transformer must be added. The motor protection fuses
must also be changed (see parts description in figure 6-11 and wiring
diagram, figure 15F-20 of Modular Dishwasher Service Manual.

2

2-1.

PLUMBING

&

ELECTRICAL CONNEC

TIONS

Figure

2-3.

Attaching Table to Tank

Figure

2-1.

Data Plate

Various plumbing connections are tagged "180° water,"
"steam," "gas," etc.
NOTE: Installation must be made by qualified workmen observing all

applicable Sanitary, Safety & Electrical Codes.

2-2. LOCATION

Place dishwasher in its proper location. (See figure 2-5 or 2-6).
Maintain 34-1/4" ±3/4" height. (See figure 2-2). Level dishwasher by
turning adjustable feet. INITIAL SETTING OF DISHWASHER MUST
BE LEVEL TO PERMIT HOOD TO OPEN AND CLOSE PROPERLY. If
one side of the door has an excessive gap after the dishwasher is
leveled, adjusting one of the front legs up or down will remedy this.
(See figure 2-3). Do not make any service connections until machine is
set and leveled and doors open and close properly.

2-3. DISH TABLE

Dish table should be lipped into the dishwasher. (See figure 2-4). Use
silicone type sealer between dish tables and dishwasher. Secure with
stainless steel (S/S) truss head screws.

2-4. ELECTRICAL CONNECTIONS

Check machine data plate before making any electrical connections.
Connections must agree with data plate (figure 2-1) on machine. A
fused disconnect switch or circuit breaker (not furnished) MUST be
installed in the electrical supply line for the dishwasher. This service
connection must meet all national and local electrical code require­ments. All connections are made at one common connection in control
box. (See figure 2-9). Control box cover is hinged. Remove the six 1/4

x 20 screws and swing cover open to the right. (See figure 2-9).

SECTION 2

INSTALLATION

NOTE: If machine has optional electrical booster, refer to section 5

for separate electrical connection information.

CAUTION: Before attempting to connect electrical service

connections, be sure incoming power is turned off.

2-5. PUMP ROTATION

The pump motor(s) must rotate in a clockwise direction (when facing
front of dishwasher). An arrow on the side of the motor(s) (see figure
2-7) indicates direction motor shaft(s) must turn for correct washing
action. This rotation is factory checked but must be rechecked before
using the machine.

3

Figure

2-4 4

NOTE: Check both motors on Double D8.

NOTE: ALWAYS DISCONNECT ALL POWER GOING TO

DISHWASHER BEFORE MAKING ANY OF THESE
CHANGES.

2-6. FILL RINSE

Final rinse water will be used to fill dishwasher. Therefore, this supply
line should have a water temperature of 180-195°F and a flow
pressure of 15 to 25 P.S.I, at the dishwasher.

NOTE: If machine is equipped with either a machine

mounted booster, or a remote mounted booster, water
supply temperature must be 140°F minimum.

If the supply pressure is below 15 P.S.I., an optional booster pump will
be required. If the supply pressure is over 25 P.S.I., a pressure
reducing valve (optional) will be required. Connect a 3/4" pipe to the
line strainer. (Figure 2-4). If the run is over 20 ft., use a larger pipe to
insure proper flow pressure.

CAUTION: Before attempting to connect electrical service

connections, be sure incoming power is turned off.

2-8. HEATING SYSTEMS - Refer to Figs. 2-6 and 2-7

For Installation Information

2-9. ELECTRIC HEATER

Machines that are electrically heated are available in 208, 240 or
440-480 volts, single or three phase only. They are pre-wired at the
factory and only one common connection is necessary. LI and L2
for single phase, L1, L2 and L3 for three phase. (See figure 2-9.)
Additional instructions are inside the control box. Be sure wire size
is adequate to carry entire amperage toad. The temperature is
controlled by the thermostat located in the control box.

2-10. GAS HEATER

Check tag attached to gas valve for type of gas (L.P. or Natural) to
be used with the equipment.

NOTE: If tag is missing, Natural or L.P. gas can be determined

by checking the gas control valve. Natural gas valve
has a pressure regulator, L.P. gas does not. (See
figure 2-10.)

Check that all fittings are tight. Connect gas supply to control valve,
conforming to all local codes.

2-7. DRAINS

Connect the tank drain(s) (figure 2-5 or 2-6) to the sewer connection
using 2" pipe (figure 2-8). Because of the hot water that is used in
dishwashers, grease traps are usually not very effective. If a grease
trap is required, it must be installed below the drain line and have a
capacity of 40 gallons per minute.

5

180°F Hot

Tank Fill and

Electric

Amps

Amps

Amps

Amps

113/60/1

230/60/1

208/60/3

230/60/3

Amps

Amps

Amps

1"

9 140°

Water

&

60 Amps

Amps

Amps

Blakeslee

6

SERVICE CONNECTION INFORMATION

Service No.
Connection

1 Water Inlet

2

15

7.5
4
3-8

1.9 Amps

2A Electric

12
13
12

5.7 Amps
3 Drain 2" NPT Male Waste to Sewer 12-1/2"
4 Gas Inlet 1/2" NPT Fem. Gas Tank Heat 10-1/4"

5 Gas Flue

Steam 6

Injector

Steam 7

Coil-In

Steam 8

Coil-Out

Fitting Function

3/4" NPT Fem.

1-1/8" Dia. Hole

1-1/8"

19-3/4" x
500 x 25 mm

3/4" NPT Fem. Steam Tank Heat 10"

3/4 "NPT Fem. Steam Tank Heat 10"

1/2" NPT Fem. Steam Tank Heat 10"

Final Rinse
1 HP Motor and

Controls

460/60/3
Tank Heater

230/60/1
208/60/3
230/60/3
460/60/3

Gas Burner Vent 16"

Dim. from

Floor

Inches

60-1/4"

25"

25"

Inlet

10 Electric

39
34
16 Amps

Tank requires 18.5 gallons of hot water to fill. Final rinse requires
maximum of 130 gals per hour of 140° hot water at 20 P.S.I. Total
steam requirement 25 Ibs. cond/hr at 20 P.S.I.

Gas burner flue not furnished on steam or electrically heated
machines. When gas heated machines are specified dimensions
marked ** are increased by 2" (50 mm).

3/4"

1-5/16"

Figure 2-5 (Continued from previous page)

Tank Fill
Booster Inlet

Built-in Booster
230/60/1
208/60/3

230/60/3
460/60/3

5-3/4"

5-3/8"

SERVICE CONNECTION INFORMATION DD8

7

MK.

NO.

SERVICE

CONNECTION

180° MIN. 1"

ELECTRIC 1-1/8" CONTROL PANEL AND 2 MOTORS 25"

30 AMPS

15AMPS

8 AMPS

7.2 AMPS

3.6 AMPS

ELECTRIC 1-1/8" 2 TANK HEATERS - TOTAL 5.0 KW 25"

24 AMPS
26 AMPS
24 AMPS

11.4 AMPS

FITT. FUNCTION

GAS INLET

GPS FLUE 19-3/4" GPS BURNER VENT 16"

(2) DRAINS 2" CONNECTS TO WASTE 12-1/2"

STEAM 3/4" TANK HEAT-INJECTOR 10"

STEAM 3/4" TANK HEAT-COIL-IN 10"

STEAM 3/4" TANK HEAT • COIL-OUT 10"

1/2" NPT

FEM.

TANKS REQUIRE 37.0 GAL'S OF HOT WATER TO FILL.
FINAL RINSE REQUIRES MAX. OF 260 GAL'S PER HOUR
OF 140° HOT WATER.

TANKS FILL INLET AND FINAL

RINSE INLET

115/60/1
230/60/1
208/60/3
230/60/3

460/60/3

230/60/1
208/60/3
230/60/3
460/60/3

GAS TANK HEAT 10-1/4"

TOTAL STEAM REQUIREMENT 50 LBS. COND./HR AT
20 P.S.I.

DIM.

FROM

FLOOR

60-1/4"

Figure 2-6. DOS Rough In Information

Figure

2-8.

Drain Installation

Figure

2-9.

Power Connections

8

Figure 2-7. Motor Rotation Checking

Natural gas valve has a pressure regulator for minor adjust

ment. L.P.

Gas pressure must be regulated by the customer's pressure
regulator.

PILOT LIGHTING PROCEDURE

1. Slightly depress control knob and turn clockwise to OFF. Wait
5 minutes for all unburned gas to vent. REMEMBER that L.P.
gas does not vent upward naturally. Therefore, if you have
been unsuccessful in lighting the pilot, within a short period of
time, the area must be exhausted with a fan, or equivalent, to
blow out L.P. gas before attempting to relight the pilot.

2. Turn the control knob to PILOT, depress it completely, and
light the pilot burner. The knob must be held down about 1
minute before the pilot burner will stay lit after releasing the
knob.

flame. BE SURE TO replace cover screw after adjustment to prevent
possible gas leakage.

GAS VENTS

Gas heated machines are furnished with flues. These do not have to
be connected to any vents. The temperature is controlled by the
thermostat located in the control box.

2-11. STEAM INJECTION HEATER

Connect incoming steam line to steam line tagged "incoming steam".
This will be the line strainer. It is recommended that a steam shut-off
valve and pressure gauge (not supplied with machine) be installed close
to the dishwasher for servicing. The tank water temperature is controlled
by the thermostat located in the control box. (See figure 2-9).

2-12. STEAM COIL HEATER

Connect incoming steam line to line tagged "steam supply." This will
be the line strainer. It is recommended that a steam shut-off valve and
pressure gauge (not supplied with machine) be installed close to the
dishwasher for servicing.

Connect condensate return line to condensate trap.
CAUTION: CONDENSATE LINE MUST RUN PARALLEL OR

DOWN FROM THE DISHWASHER. IF CONDENSATE
LINE HAS TO BE RUN VERTICAL, A CONDENSATE
PUMP MUST BE INSTALLED.

The tank water temperature is controlled by the thermostat located in
the control box. (See figure 2-9.)

3. Turn the knob to ON, and set the thermostat located in control
box for desired wash tank temperature (150-160'F).

CAUTION: DO NOT TURN GAS HEAT ON UNTIL WASH TANK

IS FILLED WITH WATER.

NOTE: Main burner is equipped with a non-adjustable orifice

(0.052 for L.P. gas and 0.078 for Natural gas.)

PILOT FLAME ADJUSTMENT

The pilot flame should envelop 3/8 to 1/2 inch of the tip of the
thermocouple (figure 2-11). Remove pilot adjustment cover screw
(figure 2-10). Turn inner adjustment screw clockwise to decrease or
counterclockwise to increase pilot

Figure 2-11. Pilot Flame Height

2-13. ELECTRICAL DETERGENT & RINSE

INJECTOR CONNECTIONS

WARNING: DISCONNECT ALL POWER BEFORE MAKING

ANY ELECTRICAL CONNECTIONS.

Connect primary leads of detergent-rinse injector transformer to F1
and F2 (top side of fuse block). (See figure 2-15. page 10.) POWER IS
AVAILABLE AT THIS POINT DURING THE WASH CYCLE.

The voltage at this point is the same as the primary (incoming)
machine voltage. Customer's incoming power line provides fuse
protection.

DO NOT connect detergent equipment to lines IT1 or IT2 or any other
source. This will defeat the fuse protection for the pump motor and
VOID the machine WARRANTY.

Connect secondary leads of detergent-injector transformer to
dispensing equipment.

A connection tap is provided for fresh water for detergent and final
rinse equipment (see figure 2-12).

9

Figure 2-12, 2-13 and 2-14 is not applicable for current production
models.

A connection tap is provided for the injection of final rinse additive
(see figure 2-12)

There is also a prepunched hole on the front of each dishwasher
tank - adjacent to the right side of the dishwasher pump motor.
This is for the detergent probe. (See figure 2-13). This hole was
put on all machines shipped after approximately 6-1-81.

Before 6-1-81 there were prepunched holes on the side of the
dishwashers for detergent probes (see figure 2-14). These holes
are covered with carbon steel caps. If these holes are not used,
replace the caps with stainless steel caps.

Connect secondary leads of detergent-injector transformer to
dispensing equipment. A detergent equipment control box knockout
for 1/2" conduit is located next to the incoming power knockout.

NOTE: It is highly recommended that a separate detergent

dispenser be used for each tank of a DD8.

Figure 2-15. Detergent Injector Hook-Up

10

3-1. PREPARING THE DISHWASHER FOR

Figure

3-1.

Standpipe Guide

OPERATION

a. Close drain (s) by turning handle of drain valve (see figure 2-8)
clockwise as far as it will go. Be sure standpipe guide is in position.
(See figure 3-1), Place scrap screens in position. (See figure 3-2). Be
sure all wash arms and lower final rinse arm(s) are in position and
spin freely. Tighten (turn clockwise) lower spindle and upper wash
rotor nut by hand.

b. Scatter the initial charge of detergent in scrap trays. Replenish as
needed unless automatic detergent dispenser has been added by
others.

c. Close the counterbalanced three way door.
d. Fill dishwasher tank with water. Flip HEAT/FILL switch item 4.

Figure 3-3 to "FILL" (down) position. Leave it in this position for 3
minutes to fill tank. Flip HEAT/FILL switch to "ON" (up) position
to turn on tank heater.

e. Observe wash tank thermometer item 6, figure 3-3. It should
register between 150)-160)F. If. after a short period of time. this

temperature is not attained adjust thermostat in control box (figure 2-

9.)

SECTION 3

OPERATION

the top of the standpipe as long as the machine is on. When the
machine is cycled, the final rinse water will bring the wash water up
to the lop of the standpipe.

NOTE: ADJUSTING THE THERMOSTAT IS A USER

FUNCTION AND IS NOT COVERED UNDER
WARRANTY.

3-2. AUTO TANK FILL-Optional

If machine is equipped with optional automatic tank fill. machine
will start filling with water automatically when machine
"HEAT/FILL" switch is flipped "ON" (up). Wait approximately 3
minutes for machine to fill. NOTE: This option will automatically
keep water to within 3 inches of

Figure 3-2. Installing Scrap Screens

Figure 3-3. Standard Front Panel and Thermometer Single

and Double D8

1. Red Power Light 5. Cycle Start Push Button

2. Amber Cycle Light Switch

3. Fuse 6. Thermometer

4. Heat On/Manual Fill and
Rinse Switch

3-3. TIMED TANK FILL (Optional)

HEAT/FILL switch, for this option, is a spring return type. To
activate Timed Tank Fill flip HEAT/FILL switch to "FILL"
position and hold for 2 seconds. Switch will return to "OFF"
position by spring action. Timer continues to fill tank.

NOTE: This lever should only be depressed at beginning of an
operation when the machine does not have any water in it. After
the machine is operating the final rinse water will keep the tank full
of water.

3-3A. TANK SELECTION (Optional on DD8 Only)

This option enables either left, right or both tanks to be
operated during each automatic or manual cycle. It
enables an operator to cycle only one tank during non
rush periods. In most cases, it also enables the machine
to operate on one tank even if the second tank is
inoperable.

3-4. SOILED DISHTABLE OPERATION

If your dishroom personnel observe these simple work rules,
your dishwashing operations will be fast and smooth, and
your dish breakage held to a minimum.

Instruct your bus boys or waitresses that leftover food must
be removed from dishes before placing them in stacks. See
figure 3-5. This will assure maintaining cleaner wash water
and reduced detergent costs.

Certain items are self-stacking, such as plates or trays. Food
soil should be removed from these items and the plates should
be placed in manageable stacks. An area on the soiled dish
table should be designated as a "build-up-area." The stacks of
dishes should be held in the build-up area and, if possible,
stacks of like items should be placed next to each other.
Racks can then be filled with like items when operator begins
washing.

Figure 3-3A. Front Panel and Thermometer

(Shown with optional tank selection switches)

DD8 Only

Some items will not readily stack, such as coffee cups,
glasses, soup bowls. These items should be placed directly
into racks so that they can be transported with a minimum of
effort. See figure 3-6. In racks these items also are not
exposed to breakage. Racks, when filled, should be placed in
the build-up area. This organized, orderly separation of
tableware is essential to dishroom efficiency and reduced
breakage. THE BETTER ORGANIZED YOUR SOILED
DISHTABLE, THE FASTER YOUR ENTIRE
OPERATION, AND THE LESS YOUR BREAKAGE
COSTS.

Silverware should be soaked in a sink or container to keep
food particles from drying. When ready for washing, the

Figure 3-5. Scrapping Dishes before Stacking

12

Figure 3-4. Hosing Inside of Tank

Figure 3-6. Build-up Area

13

silverware should be placed either in a flat rack or vertical silverware
holder and sent through the dishwasher.

NOTE: When placing silver in flat racks, do not overload the rack. You
should be able to see the bottom of the rack in many places after it is
loaded.

IMPORTANT: As much as possible, keep soil from entering
dishwashing machine. This will reduce detergent consumption and will
make the machine easier to clean.

3-5. LOADING MACHINES

All plates of the same size should be washed at the same time to
eliminate sorting dishes at the clean end of the machine. If possible, all
glasses, cups, etc. should likewise be sent through the machine at the
same time to eliminate rack sorting. The machine should be operated
as close to 100% efficiency as possible for a brief period while the
build-up area is being cleared. Dishes from the build-up area should be
quickly processed through the machine so the loading operator can
return to his normal scrapping and stacking function.

Better results can be obtained from a DD8 dishwasher if one tank is
used exclusively for china and the other tank is used for glasses and
silver.

3-6. OPERATING THE DISHWASHER
a. After filling the wash tank and adding detergent, raise the
door and slide the rack into the dishwasher. (Center of both
tanks in a DD8.)

b. Close the door (dishwasher has a safety switch figure 1 -2
that will prevent the machine from operating if the door is
open.)

c. Automatic Operation
Momentarily depress START button. Machine will automa­tically wash and rinse one rack of dishes. Automatic CYCLE

light (figure 3-3) will be on during the entire automatic cycle.
When the cycle is over, the light will turn off. If the door is
opened during the automatic cycle, the machine will stop. The
automatic cycle will have to be restarted when the door is
closed again. This feature provides a complete cycle to insure
proper cleaning of the rack of dishes or added articles.

To avoid being splashed, it is advisable to wait approximately
5 seconds before opening the door, after stopping the ma­chine.

d. Manual Operation
Wash Cycle

The only time manual wash is necessary is because of a timer
or some other electrical failure. Close the hooded door, flip
HEAT/FILL switch to "ON," depress and hold START button.
Minimum wash time is 45 seconds.

Rinse
On some rare occasion, it may be desirable to operate the
rinse cycle longer than programmed in the timer. Simply flip

the HEAT/FILL switch to "FILL." Machine will rinse as long as
the switch remains in the "FILL" position. Not applicable with
machine equipped with Timed Tank Fill (Optional). If the
machine timer has failed and the machine is being operated
manually, the ware must be rinsed for a minimum of 12
seconds after a normal wash cycle.

Figure 3-7. View of Racks with Door Raised (DD8)

3-7. SHUT DOWN and CLEANING

a. Turn off main power switch.
b. Flip HEAT/FILL switch to "OFF" position.

c. Drain machine by turning drain valve counterclockwise as far as it
will go (figure 2-8). Raise washer door.

d. Clean your dishtables and rinse in fresh water. Be sure to leave
scrap screens in machine while doing this.

e. REMOVE scrap screens, empty them, and clean with a scrub
brush in sink. Place on dishtable. DO NOT hit sides of scrap screens
on trash containers.

f. Inspect Revolving Wash Rotors for blockage of any opening and
ease of rotation. Remove and clean if required (see para. 4-4.)

g. Lift retainer on stand pipe guide (figure 3-1).

Remove standpipe and screen. Clean thoroughly in water
with wire brush.

h. Wash and clean INSIDE OF MACHINE using a hose. (See

figure 3-4.)

i. Leave DOOR open to dry interior of machine.

j. Thoroughly clean dishwashing area.

k. Clean and refill Detergent Dispenser (if machine has this
optional equipment) as instructed by your detergent supplier.

I. Replace standpipe and screen, flip stand pipe retainer lever
in place.

Additional Blakeslee Racks

W-0-16428 .............. Multipurpose Rack

W-0-16429 ................ Combination Rack

14

4

4-1. MOTOR

No Lubrication required

4-2. PUMP
No Lubrication required

4-3. DOORS

No Lubrication required

4-4. WASH ARMS

a. Wash arms (upper and lower) should turn freely and
continue turning for a few seconds after being whirled by
hand.

b. If the scrap screens are not properly in place, obstructions,
such as prune seeds or bones, may clog the wash arm nozzles.
The wash arms are easily removed for cleaning.

c. To remove the lower wash arm, first lift off the rinse arm, then
unscrew the spindle bearing pin (item 8, figure 6-4). Lift off lower
wash arm.

d. The upper wash arm(s) is removed by removing the wash
rotor nut (item 12, figure 6-6).

4-5. FINAL RINSE ARM & NOZZLES

a. The rinse nozzles will need frequent cleaning if the water
contains much lime or other solids.

b. The hole in the rinse nozzle on the lower rinse arm may be
cleaned with a wire and paper clip. Push the scale or ob­struction into the rinse arm, then unscrew the end plugs and
flush out the tubes by operating the rinse. The lower rinse arm
may be lifted straight off the bearing pin and thrust washer
assembly.

c. The upper final rinse nozzles can be cleaned with a wire brush
and by inserting the end of a paper clip thru the nozzle. Then
remove the 1/2" pipe cap at the end of the final rinse line and
flush out the line (item 28, figure 6-5).

SECTION

MAINTENANCE & LUBRICATION

IMPORTANT: An open (blown) fuse must always be replaced

with the same size and type of fuse(s).
INCREASING THE FUSE SIZE OR RATING WILL
ELIMINATE THE MOTOR PROTECTION AND
VOID THE MACHINE MOTOR WARRANTY. Refer
to figure 6-11, items 1 thru 3A, for the proper fuse
size. It is suggested that spare fuses be purchased
and kept on hand. These fuses can be obtained
from your Blakeslee parts distributor or authorized
service agency. Refer to the authorized service
distributor and service agency listing booklet that
was packaged with the machine for the one in your
area.

4-7. TROUBLESHOOTING

WASH PUMP MOTOR WILL NOT START (EITHER
TANK)

1. Automatic timer defective.
Operate wash pump manually (see paragraph 3-6d). If pump will
run on manual but not automatic, this indicates a defective timer.

2. Motor overload fuses blown.

Check the three fuses for continuity (see items 1 thru

3, figure 6-11).

Check junction box above motor if not working.

NOTE: If overload fuses are blown (open) this indicates either a
defective motor or a foreign object has jammed the pump
impeller. Turn off power supply, drain tank and check and
remove any obstruction in the tank and pump intake.

MACHINE WILL NOT START

1. Main source of power off. Check power supply from customer's
fuse or circuit breaker.

2. Control fuse blown open. Check control fuse for , continuity.

3. Door safety switch not actuated or defective. Be sure door is fully
closed and rear portion of door handle has activated (closed) the
switch. (See figure 1-2).

4-6. PUMP MOTOR OVERLOAD PROTECTION

a. Wash Motor(s)

Wash Motor protection is provided by Slow-Blow type cartridge
fuses. In the event a foreign article jams the pump impeller, the
motor will draw an excessive amount of current and open (blow)
the fuse(s). After clearing the foreign article from the pump, the
fuse(s) must be replaced before the pump motor will operate.

WARNING: SEE FIGURE 6-11, ITEM 29 FOR LOCA-

TION OF FUSES.

NO TANK HEAT

1. HEAT/FILL switch not "ON" or defective. Flip the switch to "ON"

position. If red "POWER" light comes on, switch is good. Check
further.

2. Main gas valve, steam valve or electrical heating circuit breaker

not turned on. Check.

15

3. Thermostat set too low or defective. Open control box and turn
thermostat clockwise until heat comes on.

10. Dishes or silver improperly racked. Refer to para. 3-4 for
operating instructions.)

NOTE: If heat comes on, do not leave thermostat at this high setting.

Adjust to obtain 150°-160°F wash tank temperature on wash
tank thermometer (figure 2-12, page 8). If turning thermostat
clockwise does not start the heating cycle, check for the
following::

a. Defective thermostat
b. Defective Gas valve

c. Steam solenoid or heating contactor, whichever is on your

machine.
d. Dirty line strainer
e. Steam pressure too low (should be 10 Ibs. min.)

f. Defective steam trap (steam coil heated machine only)

NOTE: The heater is designed to maintain a temperature only. Door of

dishwasher should always remain closed when machine is on
but not being used.

WASH TANK WATER FOAMING

1. Wash tank water very dirty. Change wash tank water.

2. Poor pre-scrapping procedure. Scrap dishes better.

3. Excessive protein being put into dishwasher.

4. Improper detergent. Check with detergent representative.

POOR WASHING RESULTS

1. Poor scrapping procedures. Scrap dishes better.

2. Scrap screens blocked with soil. Empty screens.

3. Machine water dirty or contaminated. Change water.

4. Wash tank water temperature too low (See section 2-8)

5. Detergent dispenser empty. Fill dispenser.

11. Poor final rinse. Refer to para. 2-6.

NO FINAL RINSE

1. Line strainer dirty or sticking final rinse solenoid
valve. For proper operation, the solenoid valve must be free of
foreign material at the valve seat. A critical period for a valve is
soon after installation. Pipe compound or metal shavings from
the installation may lodge at the valve seat and prevent the
valve from completely opening or closing. A dirty line strainer
(see figure 2-4) will also allow foreign material to pass.

REMEDY

Shut off the water supply and using a wrench, unscrew the end of the
line strainer and drain. Clean and replace line strainer and cap.
Operate final rinse. If final rinse still does not operate, turn water
supply off again and unscrew bonnet of solenoid valve and clean. If
after doing the above, the final rinse continues to malfunction, call your
Blakeslee service technician.

INSUFFICIENT RINSE TEMPERATURE

Final Rinse

1. Final rinse booster turned off (remote mounted booster only).

2. Separate electrical supply to electric booster turned off.

3. Booster inoperative or booster thermostat set too low.

4. Adjust thermostat (refer to figure 2-9). Optional equipment
(see section on boosters).

5. Water temperature of building supply water to booster too low.

6. Water supply line pressure from booster to dishwasher too low
or not insulated to prevent heat loss.

7. Steam boosters only.

a. Insufficient steam supply to booster (minimum of 10

Ibs. flow pressure required).

a. Defective steam trap.

6. Pump impeller clogged. (Refer to para. 2-5 pump motor.)

7. Wash pump running backwards. (Refer to para. 2-5 for pump
rotation.)

8. Wash rotor clogged and/or not rotating. (Refer to para. 4-4
on wash rotor.)

9. Water conditioner causing spotting. Consult with detergent
representative.

16

c. Condensate line not level or going down.

POOR FINAL RINSE RESULTS

1. Water supply pressure too low (must be 15-25 Ibs. flow
pressure) (See para. 2-6.)

2. DD8 supply line size too small. Flow rate for DD8 is 18 GPM.
Incoming water supply line should be 1" inside diameter.

3. Final rinse temperature too low. (See troubleshooting NO

(Febco Valve)

FINAL RINSE TEMPERATURE.

4. High time content or other foreign material in the water. High
lime content or other foreign material will cause severe
spotting. Consult your detergent representative for possible
remedies.

5. Final rinse nozzles clogged. See para. 4-5 on cleaning final
rinse nozzles.

6. Dirty wash water in dishwasher. Clean dishwasher.

DISHWASHER TANK(S) NOT HOLDING WATER

1. Drain valve(s) open or not fully closed. Turn valve(s) clockwise
until it hits a positive stop.

2. Foreign material around drain seat preventing positive sealing
of drain plug. Clean dishwasher and drain screen. (See para.
3-7).

3. Worn or damaged standpipe drain plug. Clean or replace.

DISHWASHER WILL NOT DRAIN

1. Clogged drain screen. Empty dishwasher by bailing water out
of wash tank with pan, etc. Clean screen.

2. Customer's drain line plugged or too small. Consult your local
plumber.

VACUUM BREAKER LEAKING

1. Deposits on the float will prevent operation of the vacuum
breaker. Shut off water supply and remove the threaded top cap
(4) (figure 4-1). Lift off the

Figure 4-1. Vacuum Breaker

collar (5) with the "0" ring (2), then remove the gasket
(1). Withdraw the float (3) and clean thoroughly. At
reassembly, make sure the "0" ring is not damaged and
is properly seated in its groove.

Genuine Blakeslee Repair Kits that are available for these
vacuum breakers:

W-1-12357 (Sloan Valve)
W-1 -12351
W-1-14835 (Consolidated Valve)

Please specify if your valve is manufactured by Sloan or
Febco. You will find the name on the cap.

17

5

5-1. GENERAL

Extra equipment for the D8 dishwashing machine, available from
Blakeslee includes hot water boosters, automatic tank fill, timed fill,
etc. This section contains information regarding proper use and
maintenance of this equipment.

5-2. HOT WATER BOOSTERS

The hot water booster is used to raise the final rinse water temperature
to 180°F-195°F, which is the temperature recommended by the
National Sanitation Foundation and required by many health
departments. To attain this temperature, the water supply to the
booster must be maintained at 140°F. Three types of boosters are
available. (1) Remote mounted electric, (2) steam boosters and (3)
machine mounted electric boosters. (D8 only)

NOTE: If the temperature of the incoming water is less than 140°F,
an oversize electric booster will probably be necessary.

5-3. Steam Hot Water Booster (Model CD

5-4. STEAM LINE. The steam inlet line is equipped with a line strainer

(1, figure 5-1) and solenoid valve (2); the solenoid valve is controlled
by an electric thermostat. A steam trap (3) on the steam outlet assures
efficient heating. Periodic cleaning of the strainer is recommended. No
operator control of this system is required.

5-5. HOT WATER INLET LINE. The inlet piping contains a line
strainer (4), pressure gauge(6), and pressure relief valve (7). Periodic
cleaning of the line strainer is recommended. The pressure regulator is
adjustable (see paragraph 5-8). The pressure gauge indicates the flow
pressure of the final rinse water when the final rinse is in operation.
The gauge should be observed periodically to assure good final rinse
action. Good final rinse results are obtained when the flow pressure is
between 15 and 25 P.S.I., preferably 20 P.S.I.

To prolong the life of the gauge, turn gauge cock (9), off (Lever
horizontal) when not observing pressure.

5-6. HOT WATER OUTLET LINE. The thermostat sensing bulb is in
the hot water outlet line. See paragraph 5-8 for adjustment.

5-7. CLEANING

LINE STRAINERS. The water outlet and steam inlet line strainers
protect the solenoid valves from dirt. Every month, clean the strainer
as described under TROUBLESHOOTING, "No Final Rinse". Be sure
water and steam supplies are turned off and pipes are cool.

SECTION

OPTIONAL EQUIPMENT

LIME DEPOSITS. If lime deposits are a problem in your area, every 9
to 12 months delime the booster heat exchanger. Remove the heat
exchanger and submerge it in a tub of deliming solution. Follow the
instructions of the deliming product manufacturer for mixing the
solution and for length of time of soaking; 48 to 60 hours soaking
time is generally required. After soaking, be sure to wash and rinse
the heat exchanger thoroughly before installing it on the booster.

5-8. ADJUSTMENTS

THERMOSTAT. Remove cover of thermostat encloser (8, figure 5-1).
Turn thermostat adjusting screw clockwise to increase temperature,
and counter-clockwise to decrease.

PRESSURE REGULATOR. If the final rinse flow pressure is not
between 15 and 25 psi, adjust the pressure regulator (5, figure 5-1)
observing the following:
a. Loosen the 1/2" lock nut. Flip HEAT/FILL switch to "FILL" position.

b. With the final rinse water flowing through the pressure regulator,
adjust to the correct pressure.

c. To increase the flow pressure, turn the screw clockwise. Turning
the screw counterclockwise will decrease the flow pressure.

d. After the proper pressure is attained, hold the 1/2" square head
screw in place and tighten the lock nut.

5-9. INSTALLATION

Position the booster so that pressure gauge can be observed by
machine operator. Use the adjustable feet on the booster to level the
unit. Figure 5-2 indicates dimensions for the plumbing connections.

BOOSTER LOCATION. Booster location with respect to the steam
supply, hot water supply and dishwashing machine is important for
efficient booster operation. Position the booster as close to these
items as possible. If the booster is positioned 20 feet or more from
the dishwasher, though the final rinse water is 180°F when it leaves
the booster, the exposed piping through which the water travels will
cool the water. The same situation applies to the booster hot water
supply. Similarly, when steam is carried over a long distance through
an exposed pipe, a pressure loss and temperature loss results. The
booster cannot operate effectively with long distances of exposed
piping. If the booster is located too far from the dishwasher, it is
recommended that an optional final rinse low temperature control be
installed in the dishwasher.

18

1.

STEAM INLET STRAINER

6.

PRESSURE GAUGE

19

2. SOLENOID VALVE

3. STEAM TRAP

4. HOT WATER STRAINER

7. PRESSURE RELIEF VALVE

8.THERMOSTAT

9.GAUGE COCK

5. PRESSURE REGULATOR

Figure 5-1. Steam Hot Water Booster

BOOSTER TO DISHWASHER CONNECTIONS. Final rinse supply
piping is 3/4 inch N.P.T. for D8,1" N.P.T. for DD8. Connect wires of
steam solenoid (2, figure 5-1) to wires marked #2 and #4 in the
control panel terminal strip. Protect the wires with a 1/2 inch conduit.

SUPPLY AND CONDENSATE CONNECTIONS. When connecting
the hot water and steam inlet piping, include a shut-off valve at each
inlet. The water piping must be a minimum of 3/4". For D8,1" N.P.T.
for DD8. The steam pipe must be a minimum of 1-1/2" for a C1
booster. Pipe sizes must be increased on runs over 50 ft.

The hot water inlet tee is 3/4 inch N.P.T. The steam inlet strainer size
is as follows: Model C1 booster is 3/4 inch N.P.T.; Model C2 booster
is 1 inch N.P.T. We suggest supply pipes be wrapped with insulation
material. The condensate return is 1/2 inch N.P.T.

NOTE: The condensate return line must always be pitched down.
Condensate return lines that are level or run uphill require the
addition of a condensate return pump.

5-10. SUPPLY PRESSURE AND TEMPERATURE RE­QUIREMENTS. Booster output (180°F water) is measured in gallons

per hour (gph). The output requirement for a particular machine is the
sum of final rinse water (in gph). To obtain a desired output, inlet
water temperature and steam supply pressure must correspond as
indicated in the booster sizing chart. For example, the model C1
booster is capable of providing 250 gph (at 20 pounds flow pressure)
of 180°F final rinse water when the inlet water temperature is 140°F
and the flowing steam supply pressure is 5 pounds. If inlet water
temperature is 120°F instead of 140 F, the booster will not produce
the required 180 F final rinse water without raising the steam flow
pressure to 7.5 pounds. The booster sizing chart is included here to
assist you in making sure adequate supply conditions are available
for effective booster operation.

20

Figure 5-2. Steam Booster Installation

R

inse with supply water at temperatures shown

100°F

120°F

140°F

150°F

3.

Previous Page

TABLE

5-2.

21

STEAM BOOSTER SIZING CHART

Steam

Pressure

5 Ib. 175 215 250 270
10 Ib. 240 300 370 400
15 Ib. 300 360 470 510

TABLE 5-1.

Gallons Per Hour 180°F.

C1 BOOSTER

D8 FINAL RINSE WATER CONSUMPTION

Maximum Amount of Final Rinse Water Consumed per
Cycle @ 20 Lbs. Flow Pressure is 1.3 gallons (Flow rate is

1.4 Gallons Per Minute).

Maximum Amount of Cycles (55) Per Hour will consume 72
gallons of water per hour.

DD8 FINAL RINSE WATER CONSUMPTION

Maximum amount of final rinse water consumed per cycle @ 20
Ibs. flow pressure is 2.6 gallons (flow rate is 2.8 gallons per
minute.

Maximum amount of cycles (55) per hour will consume I 44
gallons of water per hour.

TABLE 5-

Figure 5-3. Remote Electric Booster Installation

5-11. Remote Electric Hot Water Booster

22

This electric hot water booster uses electric heating elements to heat
the final rinse water. The elements are controlled by a thermostat.
When installing, make provisions for future service especially access
to front cover assembly. Whenever possible, connect the machine
using pipe unions.

5-12. HOT WATER INLET LINE. The inlet piping includes a pressure
regulator, pressure-temperature gauge, and a relief valve. The
pressure relief valve is preset and requires no further adjustment. The
pressure-temperature gauge should be observed periodically during
final rinse operation. If the temperature indication is below 140 F, the
hot water source may not be hot enough for the booster to be
effective; the temperature of the hot water entering the booster may
have to be raised to 140°F. (NOTE: Refer to electric hot water
boosters water temperature recovery. Table 5-4 and to D8 final rinse
water consumption Table 5-2 or DD8 final rinse water consumption
Table 5-3. Similarly, the hot water supply pressure must be
maintained between 15 and 25 psi. The pressure regulator is
adjustable (paragraph 5-15). It may be that the booster is too small
and a larger booster should be installed.
HOT WATER OUTLET LINE. The outlet piping connects to a strainer,
gauge cock and solenoid valve shown in figure 5-3. Periodic cleaning
of the strainer is recommended. The gauge cock is provided for use
as described in paragraph 5-5. The thermostat is adjustable (refer to
paragraph 5-15).

corner of front of booster and turn thermostat knob clockwise to
increase temperature, and counter-clockwise to decrease.

PRESSURE REGULATOR. If the hot water supply flow pressure is
not between 15 and 25 psi, adjust the pressure regulator observing
the following. Same as steam booster adjustment (paragraph 5-8.)
To increase the flow pressure, turn the screw clockwise. Turning the
screw counterclockwise will decrease the flow pressure.

5-16. INSTALLATION

Use the adjustable legs on the booster to level the unit. Figure 5-3
indicates dimensions for the plumbing connections.

BOOSTER LOCATION. Booster location with respect to the hot
water supply and dishwashing machine is important for efficient
booster operation. Position the booster as close to these items as
possible. If the booster is positioned 20 feet or more from the
dishwasher, though the final rinse water is 180°F when it leaves the
booster, the exposed piping through which the water travels will cool
the water.

The same situation applies to the booster hot water supply. The
booster cannot operate effectively with long distances of exposed
piping.

5-14. CLEANING

LINE STRAINER. The water outlet line strainer protects the solenoid
valve from dirt. Every month, clean the strainer as described in
paragraph 5-7. Be sure water supply is turned off and pipe are cool.

When making a new installation the sediment and mineral deposits in
the existing lines, will probably break loose and clog the dishwasher
line strainer. Clean the strainer daily until this condition clears up.

5-15. ADJUSTMENTS

THERMOSTAT. The thermostat is pre-set at factory and should
require no further adjustment. Should minor adjustment be required,
remove cover located on lower right-hand

ELECTRIC BOOSTER TEMPERATURE RECOVERY TABLE

DEGREE

FAHRENHEIT

RISE

10.5 kw 108 86 72 62 54 48 43 39 36 33 31
12 kw 123 99 82 70 62 55 49 45 41 38 35

13.5 kw 138 111 92 79 69 62 55 50 46 43 40
15 kw 154 123 103 88 77 68 62 56 51 47 44

17kw 176 142 118 101 88 79 71 64 59 55 51
18 kw 184 148 123 105 92 82 74 67 62 57 53
24 kw 246 197 164 141 123 109 99 90 82 76 70
27 kw 276 223 185 158 138 123 111 101 92 85 79
30 kw 308 246 205 176 154 137 123 114 103 94 88

40° 50° 60° 70° 80° 90° 100° 110° 120° 130° 140°

TABLE 5-4

(IN GALLONS PER HOUR)

PIPING CONNECTIONS. The controls described in paragraph 5-12
are shipped as separate items. Figure 5-3 indicates the proper
sequence for connecting these items. Use 3/4 inch N.P.T. size fittings
and pipe for D8, 1" N.P.T. for DD8. Include a shut-off valve at the hot
water inlet as indicated in the figure. We recommend the hot water
supply piping be wrapped with insulation material.

ELECTRICAL CONNECTIONS. Connect control wires of the booster
to wires No. 2 and No. 4 in the machine control panel (as noted in
wiring diagram). Protect control wires in electrical conduit. Connect
the booster power wiring to a properly rated power supply, properly
fused, and properly protected in conduit.

5-17. MACHINE MOUNTED BOOSTER

(Available on D8 Only)

A machine mounted booster is bolted under the left front of the D8
machine. This unit uses electric heating elements to raise the
temperature of the hot water from 140°F to 180-195°F. When
installing the D8 be sure not to obstruct the front of the booster or the
control box located next to the booster so that these components can
be serviced.

5-18. Installation
This unit is a low pressure, semi closed heater tank. One end must
always be open to the atmosphere. During installation of machine, do
not connect electrical power to booster until plumbing to booster is
completed.

Hot water inlet (pressure line) must always connect to line strainer,
pressure regulator, gauge and solenoid valve (see figure 5-4) which is
supplied with the unit. Water inlet plumbing can be changed from left
to right as desired. Inlet plumbing on a standard machine enters from
the left (when facing front of machine) as shown in figure 5-4. If right
hand inlet is required, the 3/4" x 8" brass pipe must be replaced with a
3/4" x 24" brass pipe. Customer should

supply the 24" pipe. Outlet line from the booster must go
directly from the top of the booster to the final rinse vacuum
breaker. See figure 5-4. DO NOT, UNDER ANY CIRCUM­STANCES BREAK INTO THIS LINE AND INSTALL A VALVE,
PRESSURE RELIEF VALVE, ETC. THIS LINE MUST BE LEFT
OPEN TO THE ATMOSPHERE. Detergent representatives can
tap into the final rinse line to install rinse additives, providing
they do not block or restrict the water flow.

The unit comes complete with 110V electrical control wiring. It
is necessary to supply and connect a separate 208-240 volt or
3-phase to the booster control box for the heating elements.
Refer to rating plate on control box for exact requirements. Be
sure this circuit is fused properly.

NOTE: When installing a new machine, DO NOT turn on
electrical power to booster until the dishwasher has filled with
water and operated through one cycle. This will assure that the
booster is full of water and purged of air.

CONTROLS

The inlet plumbing includes a pressure regulator, pressure
gauge and line strainer. The temperature gauge is installed on
top of the machine in the final rinse line. The pressure and
temperature gauges should be checked periodically during final
rinse operation. If the temperature falls below 180°F, this is an
indication that either the thermostat is set too low or that the
incoming water temperature is below 140°F (see Electric
Booster Recovery Chart Table 5-4). Final rinse flow pressure
should be between 15 to 25 IDS, preferably 20 Ibs. Adjust
pressure regulator by loosening hex head bolt and turning
square head shaft clockw ise to increase pressure,
counterclockwise to decrease. Turn gauge cock, located below
pressure gauge, off when not observing gauge.

The thermostat for the machine mounted booster is located in
the booster control box. (See figure 6-15, item 9). Turn
thermostat clockwise to increase temperature, counterclock­wise to decrease temperature.

Figure 5-4. Machine Mounted Electric Booster Installation

The High Limit cut-off is located in the booster tank (see figure
6-15, item 18). Its function is to turn off the booster in the event
it overheats. When this occurs, manually reset the unit as
follows:

1) Turn off all power to machine.

2) Remove screws from front of booster (see figure 6-15).

3) Push in red button of the High Limit Cut-off in. See
figure

4) Turn power back on. Turn machine on. Wait a few
minutes until water in booster gets hot.

5) Operate dishwasher and check final rinse temperature
and pressure.

23

6) Replace front cover.

5-19. Cleaning

Clean line strainer (figure 5-4) weekly. CAUTION: Be sure water line
coming to booster is off and booster is off.

After cleaning line strainer, DO NOT turn booster on until dishwasher
has been filled with water and has completed one full cycle.

5-20. AUTOMATIC TANK FILL

This option consists of a float switch (see figure 6-12) connected in
parallel with the manual fill switch. When the machine is turned on and
the machine is empty or the water level is below 6-3/4" the float switch
contacts will close, energyzing the fill solenoid, permitting water to flow
into the tank. The switch will open, de-energyzing the fill solenoid
when the water level reaches approximately 9". This is enough water
to operate the dishwasher.

The final rinse water will bring the water level up to the top of the
standpipe (approximately 12") after completing 1 or 2 automatic
cycles.

Placing the float switch a few inches below the high water level
prevents the water turbulence from turning the switch off and on
during an automatic wash cycle.

5-21. TIMED FILL

This option is used to fill the machine with water when it is empty.
Usually at the start of a day's operation or after

cleaning the machine. It should NOT be used to add small amounts
of water to the tank. The option consists of a spring return toggle
switch HEAT/FILL button located in the front panel (4, figure 3-3) and
a timer. Depressing the switch for 2 seconds operates the timer fo r 3
minutes. The timer contacts bypass (parallel) the manual fill switch
and will energize the fill and rinse solenoid valve.

In most cases, this is more than enough time to fill the tank. Any
excess water will flow out the standpipe and down the drain. If the
timed fill button is actuated when the machine is full or nearly full, the
fill water will go out the skimmer of the standpipe down the drain and
be wasted.

5-22. DOOR SAFETY LOCK

This lock is located on the top rear of the counterbalanced three way
door. (See figure 6-14). Purpose of this device is to prevent the door
from being opened when the machine is in operation. The device
consists of an electrical solenoid and mechanical link. The solenoid is
energized during an entire automatic cycle. When energized the
solenoid pulls a stop pin over the top of the door bumper preventing
the door from being raised or opened.

5-23. TANK SELECTION (DD8 Only) See

Figure 3-3A

This option enables either left, right or both tanks to be operated
during each automatic or manual cycle. It enables an operator to
cycle only one tank during non rush periods. In most cases, it also
enables the machine to operate on one tank even if the second tank
is inoperable.

24

6

CONTENTS

SECTION

ILLUSTRATED PARTS LIST

Figure

6-1. Base, Tank & Tracks 24
6-2. Standpipe, Pump & Drain 26
6-3. Door & Lifting Mechanism 28
6-4. Lower Rinse & Wash Arms 30
6-5. Upper Rinse & Fill Plumbing 32
6-6. Upper Manifold & Wash Arm 34
6-7. Gas Burner Assembly 36
6-8. Steam Coil Assembly 38
6-9. Steam Injector Assembly 40
6-10. Electric Tank Heat 42
6-11. Electrical Control Box 44
6 12. Automatic Tank Fill-Type "C" 46
6-13. Electrical Fittings 48
6-14. Door Lock (Optional) 50
6-15. Machine Mounted Final Rinse Booster 52
6-16. Machine Mounted Booster Plumbing & Electrical 54

————————————————— IMPORTANT —————————————————

When ordering parts please specify machine Model No. and Serial No.

Order parts from your local authorized Blakeslee Service Agency or Parts Distributor.

Credit will not be issued for returned piece parts of an assembly.

Page

25

26

FIG. 6-1. BASE, TANK & TRACKS

• RIVET,

.182

dia. x

11/32

lg. S/S

• LEVER, Stand Pipe Guide

• REAR MOUNT. Splash Guard

• BOTTOM MOUNT, Splash Guard

• HANG ING STRIP, Splash Guard

• SCREW. Truss Hd.,

1/4-20 x 5/8"

S.S.

27

FIG. 6-1. BASE, TANK & TRACKS

ITEM

NO.

PART NO. DESCRIPTION

REQD.

1 W-3-13075 TRACK ASSY 1

1A W-3-97352 TRACK ASSY FOR 1/2 RACKS (Std. in DD8) 1

2 W-2-13072 INTERCHANGEABLE TRACK GUIDE 1
3 W-1-7850 SCREW. TRUSS HD. 1/4-20 x 1/2" lg. S/S 4
4 W-1-7007 LOCKWASHER, 1/4"S/S 4
5 W-1-7146 NUT. HEX 1/4-20 S/S 4
6 W-3-12555 SCRAP TRAY ASSY 2
7 W-1-17810 FRONT PANEL D8 1

7A W-2-95951 FRONT PANEL D D8 1

8 W-0-14785 3/8" NUT PLATED 4
9 W-1-17245 3/8" LOCKWASHER PLATED 4

10 W-3-17766 BASE ASSY (STD) 1

W-3-12512 BASE ASSY (OPTIONAL S/S) A/R
11 W-1-7522 3/8" FLAT WASHER - PLATED 4
12 P-1-17230 CAPSCREW, 3/8-16 HEX HD PLATED 4
13 W-3-17841 TANK ASSY 1
14 W-1-5629
15 W-1-18649
16 W-1-20629 LABEL, "Close" 1

OPTIONAL ITEMS

QTY.

1
1

17 W-2-13330 SPLASH GUARD COMPONENT ASSY (For corner model machines) A/R
18 W-3-13322

• SPLASH GUARD

19 W-2-13324
20 W-1-13323
21 W-1-13329
22 W-1-8491
23 W-2-12967 BRACKET, Detergent Dispenser A/R
24 W-3-12968 BRACKET, Rinse Injector A/R
25 W-1-9677 SCREW, Hex Hd., 1/4-20 x 3/4" S/S 3
26 W-1-7007 LOCKWASHER, 1/4" 7
27 W-1-7146 NUT, Hex 1/4-20 3
28 W-1-7118 SCREW, Hex Hd., 1/4-20 x 1/2" S/S 2
29 W-1-5999 SCREW, Rd Hd., 1/4-20 x 1/2" S/S 2
30 W-1-8422 PLUG FOR DETERGENT DISPENSER PROBE HOLE 1
31 W-0-95681 DETERGENT DISPENSER LABEL
32 W-1-95041 WARNING LABEL DRAIN ON THIS SIDE 1

1
1
1
1
4

28

FIG. 6-2. STAND PIPE, PUMP & DH.

FIG.

6-2.

STAND PIPE, PUMP

&

DRAIN

• STAND PIPE

• DRAIN STRAINER RETAINER

• RETAINING RING

• PLUG RET, WASHER (1

-

7/8" DIA.)

• DRAIN PLUG

• PLUG, RET. WASHER

(1-1/2"

DIA.)

• 5"

DIA. IMPELLER

• IMPELLER SHAFT

• 3/16 Sq. x 3/4" Lg. Key

• 11/32

x I.D.,

1-1/4

O.D.S.S. Washer

• 5/16 X S.S. LOCKWASHER

• 5/16-18 x 3/4

S.S. HEX HD. MACH. SCREW

39 W-1-7656 SCREW,

3/8-16

x 1"lg. Hex Hd. PLATED

4

Machines manufactured after

1/98

with suffix AAB and up.

20

74505

MOTOR MOUNTING BRACKET

1

29

ITEM

NO.

PART NO. DESCRIPTION

1 W-1-17847 STAND PIPE ASSY 1
2 W-1-17837
3 W-1-18641
4 W-0-18647
5 W-0-18645
6 W-1-18427
7 W-0-18646
8 W-1-18642 STRAINER, Drain Seat 1

9 W-1-18644 RING, Drain Seat 1
10 W-1-18648 GUIDE RING, Stand Pipe 1
11 W-1-14802 CAM SHAFT ASSY 1
12 W-0-14895 GROOVE PIN, Cam Shaft 2
13 W-1-13905 SPACER, Cam Shaft 1
14 W-1-10340 "O" RING 2
15 W-1-2924 KNOB, Cam Shaft 1
16 W-0-18794 STOP NUT, Elastic 5/16-18 1
17 W-0-17798 MOTOR, 1 H.P., 115/230V, 1 Ph, 60 Hz (Used on 115&

230 Single Phase machines) 1

17A W-0-8247 MOTOR, 1 H.P., 208/240, 480 3 Ph, 60 Hz (Used on 208/240/440/480V

Three Phase machines) 1
17B W-0-16241 1 H.P. MOTOR 115/230V 1 Ph, 50 Hz (Export only) 1
17C W-0-16300 1 H.P. MOTOR 220/440V 3 Ph, 50 Hz (Export only) 1

18 W-1-17794 COLLAR, Impeller Shaft 1
19 W-1-7117 SETSCREW, 5/16" x 3/8" 2
20 W-4-13087 BRACKET, Pump Case & Motor 1
21 W-0-13088 QUAD RING 1
22 W-1-13446 "O" RING 4
23 W-3-14849 PUMP CASE 1
24 W-2-2255 PUMP SEAL 1
25 W-2-17762 IMPELLER ASSEMBLY, consisting of: 1
26 W-2-95673
27 W-2-95252
28 M-1-1658
29 1-5587
30 W-1-7598
31 W-1-7621
32 W-2-12535 PUMP EYE 1
33 W-1-7007 LOCKWASHER, 1/4" S/S 4
34 W-1-7146 NUT, Hex 1/4 -20 4
35 W-0-14785 NUT, Hex 3/8 -16 PLATED 4
36 P-1-17245 3/8" LOCKWASHER PLATED 4
37 W-1-8523 3/8" SEAL WASHER 4
38 P-1-17245 3/8" LOCKWASHER PLATED 4

REQD.

QTY.

1
1
2
1
1
1

1
1
1
1
1
1

21 75004 "O" RING 1
23 75761 PUMP WELDMENT 1

* 5871 GASKET 1

*ltems not illustrated.

30

• BEARING, Oilite Flange

• PLUG, Bumper

• GROOVE PIN.

1/8"

dia. x

1/2"

lg.

FIG. 6-3. D-8 DOOR & LIFTING MECHANISM

ITEM

NO.

PART NO. DESCRIPTION

1 W-3-12017 DOOR HANDLE ASSY 1
2 W-0-16554
3 W-1-8148 SCREW, 3/8" x 3/4" S/S HEX HEAD BOLT 4
4 W-1-7524 LOCKWASHER, 3/8" S/S 4
5 W-1-5998 NUT, Hex 3/8" S/S 4
6 W-1-14723 SUPPORT BRACKET, Door Handle 2
7 W-0-14733 BEAR ING, Oilite Sleeve 2
8 W-0-12015 RETAINING RING, 3/8 2

9 W-1-12023 LINKAGE ASSY, Door 2
10 W-1-7850 SCREW TRUSS HD 1/4" x 1/2" S/S 14
11 W-1-7007 LOCKWASHER S/S 14
12 W-1-7146 1/4" NUT HEX S/S 14
13 W-2-16380 NAMEPLATE, Door 1
14 W-0-20593 1/8" S/S BLIND RIVET 2
15 W-2-13431 BRACKET, Roller, R.H. 1
16 W-2-13430 BRACKET, Roller. L.H. 1
17 W-1-14720 ROLLER, Door 2
18 W-3-14708 DOOR HOOD ASSY 1
19 W-1-14712

19A W-1-20895 DOOR PLUG - Optional - Used with Door Safety Lock Only 1

20 W-0-17738
21 W-1-12607 SCREW, 1/4-20 x 1-1/2" lg. S/S 4
22 W-1-12026 STIFFENER, Door Guide 2
23 W-1-12511 GUIDE, Door 2
24 W-1-7007 LOCKWASHER, 1/4" S/S 2
25 W-1-7146 NUT, 1/4 -20 S/S 2
26 W-1-12987 SPRING, Extension 2
27 W-0-14093 EYEBOLT 2
28 W-0-14786 NUT, Hex 5/16-18 4
29 W-2-17739 BRACKET ASSY, Spring 2
30 W-0-16053 COTTER PIN 2
31 W-1-12836 WASHER, Flat 2
32 W-1-95370 ENERGY SAVER LABEL 1
33 W-1-95829 SPLASH SHIELD 2

QTY.

REQD.

2

4

4

31

32

FIG. 6-3A. DD8 DOOR & LIFTING MECHANISM

• BEARING, Oilite Flange

• PLUG. Bumper

• GROOVE PIN.

1/8"

dia. x

1/2"

lg.

FIG. 6-3A. DD8 DOOR & LIFTING MECHANISM

ITEM

NO.

PART NO. DESCRIPTION

1 W-3-95944 DOOR HANDLE ASSY 1
2 W-0-16554
3 W-1-8148 SCREW, 3/8" x 3/4" S/S HEX HEAD BOLT 4
4 W-1-7524 LOCKWASHER, 3/8"S/S 4
5 W-1-5998 NUT, Hex 3/8" S/S 4
6 W-1-14723 SUPPORT BRACKET, Door Handle 2
7 W-0-14733 BEAR ING, Oilite Sleeve 2
8 W-0-12015 RETAINING RING, 3/8 2

9 W-1-12023 LINKAGE ASSY, Door 2
10 W-1-7850 SCREW TRUSS HD 1/4" x 1/2" S/S 14
11 W-1-7007 LOCKWASHER S/S 14
12 W-1-7146 1/4" NUT HEX S/S 14
13 W-2-16380 NAMEPLATE, Door 1
14 W-0-20593 1/8" S/S BLIND RIVET 2
15 W-2-13431 BRACKET, Roller, R.H. 1
16 W-2-13430 BRACKET. Roller, L.H. 1
17 W-1-14720 ROLLER, Door 2
18 W-3-97682 DOOR HOOD ASSY 1
19 W-1-14712

19A W-1-20895 DOOR PLUG - Optional - Used with Door Safety Lock Only 1

20 W-0-17738
21 W-1-12607 SCREW, 1/4-20 x 1-1/2-lg.S/S 4
22 W-1-12026 STIFFENER, Door Guide 2
23 W-1-12511 GUIDE, Door 2
24 W-1-7007 LOCKWASHER, 1/4" S/S 2
25 W-1-7146 NUT, 1/4 -20 S/S 2
26 W-1-12987 SPRING, Extension 2
27 W-0-14093 EYEBOLT 2
28 W-0-14786 NUT, Hex 5/16-18 4
29 W-2-95946 BRACKET ASSY, Twin Springs 2
30 W-0-16053 COTTER PIN 2
31 W-1-12836 WASHER, Flat 2
32 W-1-95370 ENERGY SAVER LABEL 1
33 W-1-93829 SPLASH SHIELD 1
34 W-1-97687 HANDLE REAR TIE WELDMENT (Included with W-3-95944A) 1
35 W-2-95949 SPRING TIE BAR 1

QTY.

REQD.

2

4

4

33

34

FIG. 6-4. LOWER RINSE & WASH ARMS

FIG. 6-4. LOWER RINSE & WASH ARMS

ITEM

NO.

PART NO. DESCRIPTION

QTY.

REQD.

1 W-2-2279 RINSE ARM ASSY 1
2 W-1-2296
3 W-2-14513
4 W-0-14516
5 W-1-14515
6 W-2-14514
7 W-1 -2426

• RINSE PLUG

• RINSE ARM, Left

• JAM NUT 1/2 -20.S/S

• REVOLVING RINSE HEAD

• RINSE ARM, Right

• RINSE FLOODING NOZZLE, Lower

2
1
2
1
1

10
8 W-1-2731 RINSE SPINDLE ASSY 1
9 W-3-17756 WASH ROTOR ASSY 1

10 W-1-20844
11 W-1-2519
12 W-1-8149

• BUSHING (Used after 1-1-78)

• BUSHING (Use d before 1-1-78)

• SLEEVE, Bronze (Used before 1-1-78)

2
1
1

13 W-3-14853 LOWER MANIFOLD ASSY 1

NOTE: Item 10, Nylon Bushing, and Item 12, Bronze Sleeve, are not interchangeable. When replacing wash

arm bushings, a bronze sleeve must replace a worn bronze sleeve, and a nylon bushing must
replace a worn nylon bushing.

35

36

FIG. 6-5. UPPER RINSE & FILL PLUMBING

FIG. 6-5. UPPER RINSE & FILL PLUMBING

ITEM

NO.

PART NO. DESCRIPTION

QTY.

REQD.

1 W-1-7026 STRAINER, Line 1

1A W-1-13385 SCREEN ONLY, For Line Strainer A/R

2 W-1-7509 NIPPLE, Close 3/4" 1
3 W-1-7508 TEE, Brass 3/4" x 3/4" x 1/4" 1
4 W-1-4082 GAUGE COCK, 1/4" 1
5 W-1-7942 PLUG, 1/4" Brass 1
6 W-1-16383 PIPE FLANGE ASSY, 3/4" 4
7 W-1-14730 GASKET, Flange 2
8 W-1-12488 SOLENOID VALVE, 3/4", 115V 1

9 W-0-14784 SCREW, 5/16-18 x 3/4" Hex Hd 6
10 W-1-5996 LOCKWASHER, 5/16 Cd. PI. 6
11 W-0-14786 NUT, Hex 5/16-18 Cd. PI. 6
12 W-1-5913 VACUUM BREAKER (See page 17 for repair kits) 1
13 W-1-7033 ELBOW, Street 3/4". 90°, Brass 2
14 W-1-13317 TUBE ASSY 1
15 W-0-7802 THERMOMETER 1
16 W-1-11065 ELBOW, Reducer 3/4 - 1/2", 90°, Brass 1
17 W-0-18441 SCREW 2
18 W-1-7235 MICROSWITCH 1
19 W-1-8067 SCREW 2
20 W-1-16892 BRACKET, Door Switch 1
21 W-1-12585 GASKET, Upper Rinse 1
22 W-1-7598 LOCKWASHER S/S 2
23 W-1-12574 NUT, Hex 5/16-18 2
24 W-0-14516 JAM NUT, HEX 1/2"-20 UNF S/S 1
25 W-0-13365 LOCKWASHER 1
26 W-3-13354 UPPER RINSE & FILL LINE ASSY 1
27 W-1-8231 NOZZLE, Upper Spray 4
28 W-1-8709 PIPE CAP, 1/2" S/S 1
29 W-1-13433 SLEEVE, Rinse Line 1
30 W-0-97630 1/8" N.P.T. SO HD BRASS PIPE PLUG 1
31 W-0-97629 1/4" TO 1/8" BRASS PIPE REDUCER 1
32 W-1-7683 1/4" CLOSE NIPPLE 1
33 W-0-97628 1/4" N.P.T. BRASS TEE 1
34 W-0-20256 3/4" BRASS CROSS (DD8 only) 1
35 W-0-14323 3/4" x 4-1/2" BRASS NIPPLE (DD8 only) 2
36 W-1-7509 3/4" BRASS NIPPLE (DD8 only) 3

37

38

FIG. 6-6. UPPER MANIFOLD & WASH ARM

39

FIG. 6-6. UPPER MANIFOLD & WASH ARM

ITEM

PART NO. DESCRIPTION QTY. REQD.

NO.

1 W-1-12574 NUT, Hex 5/16-18 S/S 2
2 W-1-7598 LOCKWASHER, 5/16"S/S 2
3 W-1-7621 SCREW, Hex Hd 5/1 6-18 x 3/4" S/S 2
4 W-3-13081 MANIFOLD ASSY, Upper 1
5 W-1-17852 SPINDLE, Upper Wash 1
6 W-3-17756 WASH ROTOR ASSY 1
7 W-1-20844
8 W-1-2519
9 W-1-8149

• BUSHING (Used after 1-1-78)

• BUSHING (Used before 1-1-78)

• SLEEVE (Used before 1-1-78)

2
1

1
10 W-1-2132 NUT ASSY, Wash Arm 1
11 W-1-13118
12 W-1-13117

• WASHER

• NUT

1

1
13 W-1-13559 SUPPLY PIPE, Upper 1

NOTE: Item 7, Nylon Bushing, and Item 9, Bronze Sleeve, are not interchangeable.

When replacing wash arm bushings, a bronze sleeve must replace a worn
bronze sleeve, and a nylon bushing must replace a worn nylon bushing.

40

FIG. 6-7. GAS BURNER ASSEMBLY (W -0-17966, NATURAL GAS) (W-0-17967, L.P. GAS)

• ORIFICE,

.078

dia. (Natural Gas

)

• ORIFICE,

.052

dia. (L.P. Gas)

FIG. 6-7. GAS BURNER ASSEMBLY

ITEM

NO.

PART NO. DESCRIPTION

1 W-2-17959 REAR SUPPORT, Gas Burner 1
2 W-3-17816 FLUE ASSY - Discontinued 10-1-81 1

2A W-3-97706 FLUE AS SY, Used on Production Machines Beginning 10-1-81 1

3 W-4-4575 BURNER ASSY 1
4 W-1-7023 LOCKWASHER, 1/4" 10
5 M-1-3571 SCREW, Hex Hd 1/4 -20 x 1/2" lg. 2
6 W-1-7012 NUT, Hex 1/4 -20 Cd Pl 10
7 W-1-7 582 SCREW, Rd Hd 1/4-20 x 1/2" lg. 10
8 W-0-14185 SCREW, Truss Hd 3/8 -16 x 1" lg. S/S 4
9 W-1-17898 COVER, Heater Hole 1

9A W-1-2223 GASKET 2

10 W-1-17822 MOUNTING PLATE, Gas Cont. Valve 1
11 W-1-7524 LOCKWASHER, 3/8" S/S 4
12 W-1-5998 NUT, HEX 3/8" S/S 4
13 W-1-8131 SCREW, Rd Hd 10-32 x 1/2" lg. 2
14 W-0-7705 CONTROL VALVE (For L.P. Gas) 1

14A W-0-7642 CONTROL VALVE (For Natural Gas) 1

15 W-1-8491 SCREW, Hex Hd., 1/4 -20 x 3/4" lg. 2
16 W-9-14824 NIPPLE, 1/2 x 2" lg. Black 1
17 W-1-7693 ELBOW, Reducing 1/2 to 3/8" - 90° Black 1
18 W-1-7651 TUBE, ¼ x 17" lg, Alum 1
19 W-2-17817 FRONT SUPPORT, Gas Burner 1
20 W-2-17957 FLUE COVER - Discontinued 10-1-81 1

20A W-2-97708 FLUE COVER - Used on Production Machines Beginning 10-1-81 1

21 W-0-13334 CONNECTOR, 1/2" Tube to 3/8" Pipe 2
22 W-1-7650 THERMO COUPLE, 24" lg. 1
23 W-0-16196 PILOT BURNER (For Natural Gas) 1

23A W-0-16197 PILOT BURNER (For L.P. Gas) 1

24 W-1-18291 SHIELD, Pilot 1
25 W-1-17961 BRACKET, Pilot & Thermocouple 1
26 W-1-7285 LOCKWASHER. No. 10 4
27 W-1-10307 SCREW, Rd Hd 10-32 x 3/8" lg. 2
28 W-1-7637 LOCKWASHER. No. 8 Cd PI 2
29 W-1-13063 SCREW. Rd Hd 8-32 x 3/8" lg Cd PI 2
30 W-0-13335 TUBE, Alum. 1/2" x 7-1/2" lg 1
31 W-1-13982 BURNER VALVE (Std for Natural Gas .078 orifice) A/R

31A W-0-13984

32 W-0-20872 BURNER VALVE (Std for L.P. Gas .052 orifice) A/R

32A W-0-14374

33 W-1-7638 SCREW, Truss Hd 10-24 x 3/8" 1
34 W-1-4992 MIXER PLATE, Gas Burner 1
35 W-2-4770 MIXER HEAD 1
36 W-1-7634 NIPPLE, 3/4x1-3/8" lg 1

QTY.

REQD.

41

42

FIG. 6-8. STEAM COIL ASSEMBLY (W-3-13129)

ELBOW, 1/2 NPT 90

°

, Blk

FIG. 6-8. STEAM COIL ASSEMBLY

ITEM

NO.

PART NO. DESCRIPTION

1 W-3-13090 COIL ASSY 1
2 W-0-14185 SCREW, Truss Hd. 3/8 -16 x 1", S/S 2
3 W-1-7524 LOCKWASHER, Split 3/8", S/S 2
4 W-1-5998 NUT, Hex 3/8 -16, S/S 2
5 W-0-17702 GASKET, Copper/Asbestos for 1/2" pipe 2
6 W-0-14267 LOCKNUT, 1/2" N.P.S.L. Brass Pipe 4
7 W-0-13128 COUPLING, 1/2" Blk 1
8 W-0-20258 NIPPLE, 1/2 x 3-1/2" Ig, 8lk 1

9 W-1-10029
10 W-1-14824 NIPPLE, 1/2 x 2" lg, Blk 1
11 W-1-11957 UNION, 1/2" Bik 2
12 W-0-13127 NIPPLE, 1/2" x 3"lg, Blk 2
13 W-0-7644 REDUCER ELBOW, 3/4 to 1/2" - 90° Blk 1
14 W-1-7634 NIPPLE, Close, 3/4" 2
15 W-1-12085 SOLENOID VALVE, 115V, 3/4" STEAM 1

15A W-0-17390 REPAIR KIT, 3/4" Solenoid Val ve (less coil) A/R

15B W-0-17960 COIL ONLY (STEAM) A/R

16 W-1-7026 STRAINER, 3/4" Line - Brass 1

16A W-1-13385 STRAINER SCREEN (UNITED BRASS) 1

16B W-0-17507 3/4" LINE STRAINER CAP 1
16C W-0-17506 3/4" LINE STRAINER "O" RING 1

17 W-0-16877 STEAM TRAP 1/2" NPT 1

17A W-0-18135 STEAM TRAP REBUILDING KIT 1

18 W-1-11947 ELBOW, Street, 1/2" Blk 1
19 W-0-13965 NIPPLE, 1/2" x 1-1/2" Blk 1
20 W-1-13120 MOUNTING PLATE, Steam Coil 2
21 W-1-2223 GASKET, Immersion Heater 2

QTY.

REQD.

2

43

44

FIG. 6-9. STEAM INJECTOR ASSEMBLY (W -3-12988)

FIG. 6-9. STEAM INJECTOR ASSEMBLY

ITEM

NO.

1 W-1-12943 HALF NIPPLE, 3/8 x 2" Brass 1

2 W-1-7027 INJECTOR, Steam - Brass 1

3 W-1-7683 NIPPLE, Close, 1/4" Brass 1

4 W-1-12986 COUPLING, Reducer 1/2" to 1/4" Brass 1

5 W-1-12944 NIPPLE, 1/2 x 2" NPSL - Brass 1

6 W-0-14267 LOCKNUT, 1/2" N.P.S.L. Brass Pipe 1

7 W-0-17702 WASHER, Copper/Asbestos 2

8 W-0-14185 SCREW, Truss Hd. 3/8 -16 x 1" S/S 3

9 W-1-7524 LOCKWASHER, 3/8" S/S 3
10 W-1-5998 NUT, Hex 3/8 -16 3
11 W-1-8453 BUSHING, Reducer 3/4" to 1/2" Brass 1
12 W-1-7777 CHECK VALVE, 3/4" Brass 1
13 W-1-12085 SOLENOID VALVE, 3/4" NPT, 115V STEAM 1

13A W-0-17390 REPAIR KIT, 3/4" Solenoid Valve (less coil) A/R

13B W-0-17960 COIL ONLY (STEAM) A/R

14 W-1-14825 ELBOW, STREET 3/4" x 90°, Blk 2
15 W-1-7634 NIPPLE, Close 3/4" Blk 2
16 W-1-11968 UNION, 3/4" Blk 1
17 W-0-14268 NIPPLE, 3/4" x 2"Blk 1
18 W-1-7026 STRAINER, 3/4" Line, Brass 1

18A W-1-13385 STRAINER SCREEN (UNITED BRASS) 1

18B W-0-17507 3/4" LINE STRAINER CAP 1
18C W-0-17506 3/4" LINE STRAINER "O" RING 1

19 W-1-12954 MOUNTING PLATE, Injector 2
20 W-1-2223 GASKET, Immersion Heater 2

PART NO. DESCRIPTION

QTY.

REQD.

45

46

FIG. 6-10. ELECTRIC TANK HEAT W-0-95377 HEATING

ELEMENT ASSEMBLY

47

FIG. 6-10. ELECTRIC TANK HEAT

ITEM

NO.

PART NO.

DESCRIPTION

1 W-0-95377 HEATING ELEMENT ASSY (Consists of Items 2. 3,4, and 5) 1
2 W-0-18795 HEATER, 2.5 KW 1
3 W-1-2223 GASKET, Heater 2
4 W-1-12024 WASHER, Heater S/S 2
5 W-1-12025 LOCKNUT, 2" N.P.T. 1
6 W-2-20875 13" ELEMENT WRENCH (For installation - inside tank) (OPTIONAL) A/R
7 W-2-20876 10" ELEMENT WRENCH (For installation - exterior of tank) (OPTIONAL) A/R

QTY.

REQD.

SECTION 6. ILLUSTRATED PARTS LIST

• BASIC CONTROL BOX ASSY

-115V,

1Ph

w/Gas or

• LIGHT, Red

- "Power"

• LIGHT, Amber

- "Cycle"

• FUSE HOLDER

• FUSE,

1.6

Amp. Slo

-

Blo

• CONTROL GUARD

• NAMEPLATE

• PATIENT TAG

• ELECTRICAL SUPPLY CONNECTION TAG

• SCREW, Truss Hd

. 10-24 x 1/2"

lg. S/S

48

37

Figure 6-11. Electrical Control Box

ITEM

NO.

3A W-0-16690 FUSE, 5 Amp. 500V (Used on 440/480V, 3 Ph machines) 3

10 W-0-16559
11 W-0-16560
12 W-1-10765
13 W-1-10766
14 W-1-20859
15 W-2-17708-8
16 W-1-13963
17 W-1-12443
18 W-1-5987

PART NO. DESCRIPTION

W-0-18033 CONTROL BOX ASSY - 230V, 1 Ph or 208/240V, 3 Ph
w/Gas or Steam Tank Heat - Includes items 1,2, & 4 thru 48 1
W-0-18034 CONTROL BOX ASSY - 230V, 1 Ph or 208 - 240/480V, 3 Ph

w/Electric Tank Heat - Includes items 3,3A, & 4 thru 48 1
1 W-0-16687 FUSE, 20 Amp. 250V (Used on 115V. 1Ph machines) 1
2 W-0-16688 FUSE, 10 Amp. 250V (Used on 230V. 1Ph m achines) 2
3 W-0-16689 FUSE, 8 Amp. 250V (Used on 208/240V, 3 Ph machines) 3

4 W-1-7201 TRANSFORMER, .150KVA 1
5 W-1-7646 SCREW, Rd. Hd. 10-32 x 3/8" lg. 4
6 W-1-7209 MOTOR CONTACTOR. 3 Pole 1
7 W-1-7646 SCREW, Rd. Hd. 10-32 x 3/8" lg. (For Contactor) 4
8 W-1-7209 CONTACTOR, 3 Pole (Electric Heat Only) 1
9 W-0-18032

Steam Tank Heat (Not Shown) 1

QTY.

REQD.

1
1
1
1
1
1
1
1
6

• PANEL, Front Cover

• HINGE, S/S

• SCREW, Hex Hd.,

1/4-20 x 1/2"

lg.

• INSULATOR,

1/32

Fiber

• SCREW, Mach., Rd. Hd.,

8-32x5/8"

lg.

• CONTROL BOX

• CHASSIS PANEL

• SCREW, Cut

10-32 x 3/8"

lg.

• AUXILIARY CONTACT, N/o

(2)

• FUSE BLOCK,

3

Pole

• SCREW, Mach., Rd.Hd.,

8-

32 x 5/8

"

lg.

• TIMER.60 Sec.115V

• SCREW, Mach., Rd.Hd.,

8-

32 x 5/8

"

lg.

• THERMOSTAT

• SCREW, Mach., Rd.Hd.,

8-32x3/8"

lg.

• 120) DECAL

• SWITCH, "START", Pushbutton

• SWITCH,

3

Pos. Toggle

• MACHINE NAMEPLATE

• SCREW, Self Tapping

#4-1/4

• EYELET TIE WRAP,

7"

• SCREW, Rd. Hd.,

10-24 x 1/4"

• LOCKWASHER,

10-24

• ELECTRIC HEAT WARNING TAG

• GAS HEAT WARNING TAG

• ABBREVIATED WIRING DIAGRAM

• CONTROL BOX GASKET ASSY

• WASH

&

RINSE REQUIREMENT PLATE

49

FIG.6-11. ELECTRICAL CONTROL BOX

ITEM

NO.

PART NO. DESCRIPTION

19 W-2-17731
20 W-1-18132
21 W-1-7118
22 W-1-12504
24 W-1-7999
25 W-3-17726
26 W-2-17716
27 P-1-17241
28 W-1-13914
29 W-0-14811
30 W-1-7999
31 W-2-14480

31A W-1-7999

32 W-1-7768

32A W-1-13063

33 W-0-13822

• THERMOMETER, Wash

34 W-1-95995
35 W-1-7202
36 W-0-16954
37 W-1-8097
38 W-1-8096
39 W-0-14255
40 W-1-11545
41 W-1-7285
42 W-1-8754

1

43 W-1-8752

(USED ONLY ON GAS HEATED MACHINES) 1
44 W-2-17741
45 W-2-17804
46 W-1-5427
47 W-0-20833 SWITCH, 3 Pos. Toggle - (Spring Return on Fill -

Used on Machines with Timer Fill - OPTION ONLY) 1
48 BLANK CONTROL GUARD 1
49 W-0-14479 SWITCH, Toggle 1
50 W-0-20452 1 MINUTE REPEAT CYCLE TIMER, Timed Fill Option 1

50-A W-0-95940 1 MINUTE POWER INTERVAL TIMER, Timed Fill Option 1

50-B W-0-20842 5 MINUTE TIMER, Timed Fill Option 1

51 W-0-95934 SILICONE RECTIFIER, Used With Item 50 and 50A
52 W-2-20878 POWER REQUIREMENT NAME PLATE

QTY.

REQD.

1
1
4
1
2
1
1
6
1
1
2
1
1
1
2
1
1
1
1
1
8
2
2
2

1
1
1

Control Box Assembly

Machines manufactured after 1/98
with suffix AAA and up.

CONTROL BOX ASSEMBLY

ITEM

NO.

1 17731 FRONT COVER 1
2 70155 THERMOMETER 1
3 20859 CONTROL GUARD 1
4 16559 POWER LIGHT - RED 1
5 16560 CYCLE L IGHT - AMBER 1
6 10765 FUSE HOLDER 1
7 10766 1-6/10 FUSE SLO-BLO 1
8 7202 PUSH BUTTON SWITCH 1

9 16954 TOGGLE SWITCH 1
10 5987 10-24 x 1/2 S/S TRUSS HD. MACH. SCREW 6
11 17804 CONTROL BOX GASKET 1
12 17726 CONTROL BOX 1
13 16782 TERMINAL BLOCK A/R

*14 15799 MOUNTING CHANNEL A/R
*15 7999 8-32 x 3/8 R.H.M.S. 2

16 74114 GROUND LUG 1
17 17716 CHASSIS PANEL 1
18 17241 10-32 x 3/8 SCREW 6
19 70192 MOTOR CONTACTOR 1
20 71605 OVERLOAD RELAY, 115V, 1 Ph. 1

20A 71603 OVERLOAD RELAY, 230V, 1 Ph. 1

20B 71601 OVERLOAD RELAY, 208/240V, 3 Ph. 1
20C 71600 OVERLOAD RELAY, 440/480V, 3 Ph. 1

21 75581 AUX. CONTACT, 2-Pole N/O. 3 Ph. Mach. 1
22 7209 HEAT CONTACTOR 1
23 14480 TIMER 1
24 7768 THERMOSTAT 1

*25 18132 HINGE 1
*26 7118 1/4-20 x 1/2 S/S HEX HD. MACH. SCREW 4
*27 13063 8-32 x 3/8 R.H.M.S. 8
*28 7646 10-32 x 3/8 R.H.M.S. 2
*29 17708 NAME PLATE 1
*30 99705 DATA LABEL 1
*31 74123 WARNING LABEL 1
*32 7201 TRANSFORMER (440V Mach. only) 1
*33 15871 NYLON CABLE CLAMP 2

OPTIONAL EQUIPMENT
AUTOMATIC TANK FILL CYCLE
74235 AUTO FILL TIMER 1
7202 FILL S START PUSH BUTTON 1
74241 SWITCH LABEL 1
AUTOMATIC CYCLE
73375 SOLID STATE TIMER 1
THERMAL CYCLE EXTENSION
73952 TIMER 1
75452 SOLID STATE RELAY 1

*ltems not illustrated.

PART NO.

DESCRIPTION

QTY.

REQD.

COMPLETE ASSY

W-3-20453

50

FIG. 6-12. AUTOMATIC TANK FILL "TYPE C"

CONNECTOR,

3/8 - 90° LIQUID

TIGHT CONNEC

TOR

FIG. 6-12. AUTOMATIC TANK FILL "TYPE C"

ITEM

NO.

PART NO. DESCRIPTION

1 W-0-18865 FLOAT SWITCH, Liquid 3 Amp. 1
2 W-0-20467 ELBOW, Street 1/4" S/S 1
3 W-1-20449 BUSHING, Extension 1
4 W-0-18927 WASHER, Flat S/S 2
5 W-0-18866 "O" RING, 1/2" O.D. 1
6 W-0-18928 LOCKNUT- 1/4" Brass 1
7 W-1-7684 BUSHING, Reducer 1/2" to 1/4" 1
8 W-1-12830 ELBOW, Pulling - 1/2" - 90° 1

9 W-1-7580
10 W-0-20466 CONDUIT, Liquid Tight 3/8" x 6-1/2" lg A/R
11 W-1-7587 GASKET ASSY, 1/2" 1
12 W-1-8360 NUT, Drive 1/2" 1

QTY.

REQD.

2

51

52

FIG. 6-13. ELECTRICAL FITTINGS

NO.

FIG. 6-13. ELECTRICAL FITTINGS

ITEM

PART NO. DESCRIPTION

1 W-1-7577 1/2" x 90° E.M.T. Conduit Box Connector
2 W-1-12977 1/2" E.M.T. Conduit Strap
3 See Notes 1/2" x 50" lg. E.M.T. Conduit (Custom Bent for Each Machine)
4 W-1-7563 1/2" Straight E.M.T. Box Connector
5 W-1-7580 3/8" 90° Liquid Tight Connector
6 W-1-7654 3/8" Straight Liquid Tight Connector
7 W-1-7617 1/2" Straight Liquid Tight Connector
8 W-1-7583 1/2" 90° Liquid Tight Connector

9 See Notes 1/2" x 11-1/2" Liquid Tight Conduit (For Motor)
10 See Notes 1/2" x 15-1/2" Liquid Tight Conduit (For Electric Heating Element)
11 W-1-8836 1/2" x 45° Liquid Tight Connector
12 See Notes 1/2" x 13" Liquid Tight Conduit (Gas)
13 See Notes 3/8" x 7-1/2" Liquid Tight Conduit
14 See Notes 3/8" x 15-1/2" Liquid Tight Conduit
15 W-1-7572 1/2" Unilet Tee

15A W-0-20925 1/2" Unilet (4-way)

16 W-1-7573 1/2" Unilet Tee Cover
17 W-1-7574 1/2" Unilet Tee Cover Gasket
18 See Notes 1/2" x 10-1/2" Liquid Tight Conduit (Steam Coil)
19 See Notes 1/2" x 8-1/2" Liquid Tight Conduit (Steam Injector)
20 See Notes 1/2" x 20" Liquid Tight Conduit (Optional Door Lock)
21 W-1-7587 1/2" Junction Box Gasket
22 W-1-8360 1/2" Drive Lock Nut
23 W-1-12437 SNAP BUSHING

NOTES: W-1-7592 E.M.T. Thinwall Conduit (order 3/8 or 1/2 dia. x 10 ft. length)

W-1-7589 3/8" Liquid Tight Conduit (order feet req'd.)
W-1-7590 1/2" Liquid Tight Conduit (order feet req'd.)

54

6-14. DOOR LOCK (Optional)

FIG. 6-14. DOOR LOCK ASSEMBLY

ITEM

NO.

PART NO.

DESCRIPTION

1 W-2-20915 COVER 1
2 W-1-7601 SCREW, Rd Hd. 10-24 X 3/8" lg 4
3 W-0-20839 SOLENOID 1
4 W-1-8132 NUT, Hex 10-24 S/S 4
5 W-1-7285 LOCKWASHER, No. 10 S/S 4
6 W-2-20917 MOUNTING BASE 1
7 W-1-7118 SCREW, Hex Hd 1/4 -20 x 1/2" lg 2
8 W-1-7007 LOCKWASHER. 1/4" 2

9 W-1-7146 NUT, Hex 1/4 -20 2
10 No Number PIN, 13/64 x 2" lg - furn'd w/solenoid 1
11 W-0-20919 SPRING 1
12 W-1-20916 SHAFT 1
13 W-0-20918 STOP PIN 1
14 W-1-20895 DOOR BUMPER - Used only with this door lock Ref.

QTY.

REQD.

55

FIG. 6-15. MACHINE MOUNTED FINAL RINSE BOOSTER (SINGLE D8 ONLY)

FIG. 6-15. MACHINE MOUNTED FINAL RINSE BOOSTER

PART NO.

VOLTAGE

PHASE

K.W.

AMPS

ITEM

NO. PART NO. DESCRIPTION REQD.

1 W-1-8360 LOCKNUT, Tiger Grip 2
2 W-1-8587 GASKET, 1/2" 2
3 W-1-7617 CONNECTOR, Str. 1/2" Liquid Tight 1
4 See note 1/2" x 12" lg. Liquid Tight Conduit 1
5 W-1-8836 45" ELBOW, 1/2" Liquid Tight 1
6 W-2-20914 WIRING DIAGRAM, Abbrev. 1
7 W-2-20878 PLATE, Power Requirement 1

7A W-1-8096 SCREW, 4-40 x 1/4" lg. Self-tapping 1

8 W-1-8000 SCREW, 6-32 x 1/4" lg. Rd. Hd. 1

9 W-1-16221 BRACKET, Thermostat Mtg. 1
10 W-0-7768 THERMOSTAT w/Capillary 1
11 W-1-8131 SCREW, 10-32 x 1/2" lg. Rd. Hd. 6
12 W-1-7210 CONTACTOR, 60 Amp. 3 Pole 1
13 W-1-12616 NIPPLE, 3/4" Conduit - Insulated 4
14 W-1-7743 GASKET ASSY, 3/4" 4
15 W-1-8171 COUPLER, 3/4" N.P.T. (Galv.) 2
16 W-0-20840 HEATER, Immersion 2.5 K.W. 5
17 W-1-8004 SCREW, 6-32 x 1/2" Ig. Rd. Hd. 1
18 W-0-20841 SWITCH, 250° High Limit Cut-Off 1
19 W-2-20908 BOX, Booster Element 1
20 W-1-20912 GASKET ASSY, Booster 1
21 W-3-20909 TANK ASSY, Booster Element 1
22 W-1-7012 NUT, 1/4 -20 2
23 W-1-7023 LOCKWASHER, 1/4 2
24 M-1-3571 SCREW, Hex Hd. 1/4-20 x 1/2" lg. 2

NOTE: W-1-7590 1/2" Liquid Tight Conduit (order feet req'd.)

QTY.

BOOSTER IMMERSION HEATER CHART

HEATER

72635 208/240 1 12.0 58
72635 208/240 3 12.0 34
72634 440/480 3 12.0 16
72636 208/240 1 15.0 72

72636 208/240 3 15.0 42
72460 440/480 3 15.0 20

72688 208/240 1 9.0 45
72688 208/240 3 9.0 26
72689 440/480 3 9.0 13

57

FIG. 6-16. MACHINE MOUNTED BOOSTER PLUMBING & ELECTRICAL

(SINGLE D8 ONLY)

58

1 W-0-14250

NIPPLE, Close

3/4" x 1-1/2"

lg. Brass

2

FIG. 6-16. MACHINE MOUNTED BOOSTER PLUMBING & ELECTRICAL

ITEM

NO.

PART NO. DESCRIPTION

2 W-1-13608 UNION, 3/4" Brass 1
3 W-1-8219 ELBOW, 90° Brass 1
4 W-0-18263 PIPE, Brass 3/4" x 8" lg. 1
5 W-0-18261 ELBOW, 45° Brass 2
6 W-0-95018 PIPE, Brass 3/4" x 38" lg. 1
7 W-1-8217 UNION ELBOW, 3/4" x 90° - Brass 1
8 W-1-8219 ELBOW, 3/4" x 90° N.P.T. - Brass 1

9 W-1-18263 NIPPLE, 3/4" x 8" lg.-Brass 1
10 W-1-12488 SOLENOID VALVE, 3/4", 120V 1
11 W-0-14250 NIPPLE, 3/4" Close 3
12 W-1-7508 TEE, 3/4" x 3/4" x 1/4" 1
13 W-1-7683 NIPPLE, Close 1/4 N.P.T. x 7/8" lg. 1
14 W-1-4082 GAUGE COCK, 1/4 N.P.T. 1
15 W-1-7917 GAUGE, Pressure A/R

15A W-0-18194 GAUGE, Pressure - Chrome Plated (Optional) A/R

16 W-1-7116 PLUG, 1/4" N.P.T. Pipe (Used in place of Pressure Gauge) A/R
17 W-107916 REGULATOR, Pressure 3/4" 1
18 W-1-7026 STRAINER, 3/4" Brass 1
19 W-1-7587 GASKET ASSY, 1/2" 2
20 W-1-8360 LOCKNUT, Tiger Grip 2
21 W-1-7579 ELBOW, 3/8" x 45° 1
22 See Note CONDUIT, 3/8 x 31" lg. Liquid Tight A/R
23 W-1-7580 ELBOW, 3/8" x 90° Liquid Tight 1

NOTE: W-1-7589 3/8" Liquid Tight Conduit (order feet reqd.)

QTY.

REQD.

59