Jackson Enodis 300X, 300XS, 300XLT, 300XN Technical Manual

UPRIGHT DOOR DISHMACHINE SERIES

TECHNICAL MANUAL

INSTALLATION MANUAL FOR EXPORT UNITS

SERVICE MANUAL FOR DOMESTIC UNITS

FOR JACKSON MODELS:

ELECTRIC HEATED

300X

300XLT

300XN

STEAM HEATED

300XS

July 26, 2006
P/N 7610-002-64-22 (Revision E)

Jackson MSC, Inc.

P.O. BOX 1060

HWY. 25E

BARBOURVILLE, KY. 40906

FAX [phone]

PHONE [phone]

www.jacksonmsc.com

REVISION

A 02-13-2003 MAW 6662 Release manual for service use.

REVISION

DATE

MADEBYAPPLICABLE

ECN

DETAILS

B 07-11-2003 MAW

C 02-09-2004 MAW 6973

D 02-10-2006 MAW

E 07-26-2006 MAW 7571

6652, 6681

6690

7205, 6964
7231, 7383

7553

Updated per ecns.
Added 300XS Model. Changed Cover name from Service to

Technical.
Added 300XLT Dimensioned drawing. Changed High Limit

Thermostat from 05930-121-71-36 to 05930-011-49-43. Changed
Rinse Thermostat from 05930-121-71-29 to 05930-510-03-79.
Replace vacuum breaker 04820-300-07-00 with 04820-003-06-

13. Add false panel kit assembly numbers.
Converted to center layout. Added wash themostat kits and updat -

ed tub assemblies. Updated drain quench assembly.

i

NOMENCLATURE FOR THE MODELS COVERED IN THIS MANUAL

300XS

300X = Electrically heated, high temp, hot water sanitizing, with booster heater, door-type dishmachine
300XLT = Electrically heated, low temp, chemical sanitizing, no rinse booster, door-type dishmachine
300XN = Electrically heated, high temp, hot water sanitizing, no rinse booster, door-type dishmachine
300XS = Steam heated, high temp, hot water sanitizing, door-type dishmachine

Model:
Serial No.:
Installation Date:
Service Rep. Name:
Phone No.:

ii

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE

I. SPECIFICATION INFORMATION

Operating Capacities 2
Electrical Requirements 3
Dimensions 4
300XN/300XLT Dimensions 5
Table Dimensions 6

II. INSTRUCTION/OPERATION INSTRUCTIONS

Installation Instructions 8
300X System Flow Diagram 10
300XN/XLT System Flow Diagram 11
300XS System Flow Diagram 12
Detergent Control 13
Operation Instructions 14

III. PREVENTATIVE MAINTENANCE 17
IV. TROUBLESHOOTING SECTION 19
V. SERVICE PROCEDURES

Rinse Solenoid Valve Repair Parts Kit 22
Vacuum Breaker Repair Parts Kit 26
Rinse Regulating Thermostat Replacement 28

VI. PARTS SECTION

Control Box Assembly 33
Hood Assembly 35
Cantilever Arm/Door Assemblies 36
Frame Assembly 38
Tub Assembly 39
Steam Tub Assembly 41
RinseTank Assembly 43
Thermostats/Wash Heaters/Rinse Heaters 44
Wash Pump Exploded View 45
Wash Motors 46
Water Pressure Regulator Kit (WPRK) Option Plumbing 47
Incoming Plumbing Assembly 47
Outlet Plumbing Assembly 49
300XN/300XS Incoming Plumbing Assembly 50
Vacuum Breaker Repair Kit (1/2” NPT) 51
Solenoid Valve Repair Parts 51
300XS Incoming Steam Plumbing Assemblies 52
300XS Steam Coil Assembly 53
Wash and Rinse Arm/Manifold Assemblies 54
Safety Door Interlock (SDI) Option 56
Exhaust Fan Control Option 57
False Panel Kit Option 58
Drain Quench Kit Option 59

VII. ELECTRICAL DIAGRAMS

208V - 230V, 50/60 Hz, single/three phase 300X/XN/XLT 61
380V - 440V - 460V, 50/60 Hz, three phase 300X/XN/XLT 62
415V, 50/60 Hz, three phase 300X/XN/XLT 63
208V - 230V - 380V - 460V, 50/60 Hz, single/three phase 300XS 64

i

SECTION 1:

SPECIFICATION INFORMATION

1

SECTION 1: SPECIFICATION INFORMATION

OPERATING CAPACITIES

OPERATING CAPACITY (PER HOUR):

Model Racks Dishes Glasses
300X 57 1425 1425

300XN 57 1425 1425
300XLT 57 1425 1425

OPERATING CYCLE (SECONDS):

Wash Time 45 sec
Rinse Time 11 sec
Complete Cycle Time 58 sec

OPERATING TEMPERATURES (°F):

Wash Temperature (Minimum) 150°F
Wash Temperature (Minimum) 66°C
Rinse Temperature (Minimum) 180°F
Rinse Temperature (Minimum) 83°C

WATER REQUIREMENTS:

Inlet Temperature (300X/12KW Heater) (Minimum) 140°F
Inlet Temperature (300X/12KW Heater) (Minimum) 60°C
Inlet Temperature (300X/14KW Heater) (Minimum) 110°F
Inlet Temperature (300X/14KW Heater) (Minimum) 44°C
Inlet Temperature (300XN) (Minimum) 180°F
Inlet Temperature (300XN) (Minimum) 83°C
Inlet Temperature (300XLT) (Minimum) 110°F
Inlet Temperature (300XLT) (Minimum) 44°C
Gallons per Hour (Approximate) 52
Water Line Size 1/2” NPT
Drain Line Size 1-1/2” NPT
Flow Pressure PSI 20 A 5
Wash Tank Capacity (Gallons) 8
Wash Tank Capacity (Liters) 30.3
Rinse Tank Capacity (Gallons)(300X Only) 3
Rinse Tank Capacity (Gallons)(300X Only) 11.4

STEAM REQUIREMENTS:

COIL SIZE 3/4”
STEAM FLOW PRESSURE (P.S.I.) 10-20
CONSUMPTION @ 15 P.S.I. (LBS/HR) 45

NOTE: Always refer to the machine data plate for specific electrical and water requirements. The material provided on
this page is for reference only and may be subject to change without notice.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

2

SECTION 1: SPECIFICATION INFORMATION

ELECTRICAL REQUIREMENTS

NOTE: Typical Electrical Circuit is based upon (1) 125% of the full amperage load of the machine and (2) typical fixed-trip
circuit breaker sizes as listed in the NEC 2002 Edition. Local codes may require more stringent protection than what is dis ­played here. Always verify with your electrical service contractor that your circuit protection is adequate and meets all
applicable national and local codes. These numbers are provided in this manual simply for reference and may change with­out notice at any given time.

300X

RINSE TYPICAL
HEATER TOTAL ELECTRICAL

VOLTS PH HZ RATINGS AMPS CIRCUIT

208 1 50 12 KW@240V 71 90 AMP
208 1 50 14 KW@240V 78 100 AMP
230 1 50 12 KW@240V 78 100 AMP
230 1 50 14 KW@240V 86 110 AMP

208 3 50 12 KW@240V 45 60 AMP
208 3 50 14 KW@240V 49 70 AMP
230 3 50 12 KW@240V 48 60 AMP
230 3 50 14 KW@240V 53 70 AMP
380 3 50 12 KW@380V 29 40 AMP
*380 3 50 14 KW@208V 34 45 AMP
415 3 50 12 KW@415V 26 35 AMP
415 3 50 14 KW@415V 29 40 AMP
440 3 50 12 KW@460V 21 30 AMP
440 3 50 14 KW@460V 25 35 AMP

208 1 60 12 KW@240V 69 90 AMP
208 1 60 14 KW@240V 76 100 AMP
230 1 60 12 KW@240V 76 100 AMP
230 1 60 14 KW@240V 84 110 AMP

208 3 60 12 KW@240V 43 60 AMP
208 3 60 14 KW@240V 47 60 AMP
230 3 60 12 KW@240V 46 60 AMP
230 3 60 14 KW@240V 51 70 AMP
460 3 60 12 KW@480V 22 30 AMP
460 3 60 14 KW@480V 24 30 AMP

300XN

RINSE TYPICAL
HEATER TOTAL ELECTRICAL

VOLTS PH HZ RATINGS AMPS CIRCUIT

208 1 50 N/A 28 35 AMP
230 1 50 N/A 30 40 AMP

208 3 50 N/A 20 25 AMP
230 3 50 N/A 21 30 AMP
380 3 50 N/A 10 15 AMP
415 3 50 N/A 10 15 AMP
440 3 50 N/A 8 15 AMP

300XLT

RINSE TYPICAL
HEATER TOTAL ELECTRICAL

VOLTS PH HZ RATINGS AMPS CIRCUIT

208 1 50 N/A 28 35 AMP
230 1 50 N/A 30 40 AMP

208 3 50 N/A 20 25 AMP
230 3 50 N/A 21 30 AMP
380 3 50 N/A 10 15 AMP
415 3 50 N/A 10 15 AMP
440 3 50 N/A 8 15 AMP

208 1 60 N/A 26 35 AMP
230 1 60 N/A 28 35 AMP

208 3 60 N/A 18 25 AMP
230 3 60 N/A 28 35 AMP
460 3 60 N/A 8 15 AMP

300XS

RINSE TYPICAL
HEATER TOTAL ELECTRICAL

VOLTS PH HZ RATINGS AMPS CIRCUIT

208 1 50 N/A 7 15 AMP
230 1 50 N/A 7 15 AMP

208 3 50 N/A 7 15 AMP
230 3 50 N/A 7 15 AMP
380 3 50 N/A 7 15 AMP

208 1 60 N/A 6 15 AMP
230 1 60 N/A 6 15 AMP

208 3 60 N/A 6 15 AMP
230 3 60 N/A 6 15 AMP
460 3 60 N/A 2 15 AMP

208 1 60 N/A 26 35 AMP
230 1 60 N/A 28 35 AMP

208 3 60 N/A 18 25 AMP
230 3 60 N/A 28 35 AMP
460 3 60 N/A 8 15 AMP

* This unit is wired in a wye configuration for the heaters.

300X Series Technical Manual 7610-002-64-22

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3

SECTION 1: SPECIFICATION INFORMATION

300X DIMENSIONS

LEGEND:

A = Drain (1-1/2” NPT)
B = Water Inlet (1/2” NPT)
C = Electrical Connection
NOTE: All dimensions are in inches unless otherwise specified. All vertical dimensions are adjustable by +/- 1/2” (1.3 cm) due to

the adjustable bullet feet.

300X Series Technical Manual 7610-002-64-22

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4

SECTION 1: SPECIFICATION INFORMATION

300XN & 300XLT DIMENSIONS

4 1/2"

25 1/4"

3 3/8"

C

25 1/4"

32"

17 1/2"

4 1/2"

4 1/2"

4 7/8"

1"

1"

B

C

B

17 1/2"

13 3/8"

OPENING

34"

TABLE HEIGHT

56 1/4"

64 3/8"

61 3/4"

60 5/8"

B

12 5/8"

76"

B

4 7/8"

LEGEND:

A = Drain (1-1/2” NPT)
B = Water Inlet (1/2” NPT)
C = Electrical Connection
NOTE: All dimensions are in inches unless otherwise specified. All vertical dimensions are adjustable by +/- 1/2” (1.3 cm) due

to the adjustable bullet feet.

300X Series Technical Manual 7610-002-64-22

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5

SECTION 1: SPECIFICATION INFORMATION

TABLE DIMENSIONS

2 1/2” (6.4 cm)

4” (10.2 cm)

MINIMUM

20 1/2” (52.1 cm)

OPENING

25 1/4”

(64.1 cm)

25 1/4”

(64.1 cm)

4” (10.2 cm)
MINIMUM

2 1/2”

(6.4 cm)

OPENING

20 1/2” (52.1 cm)

CORNER INSTALLATION

TABLE DIMENSIONS

3/4” (1.9 cm)

20 1/2” (52.1 cm)

4” (10.2 cm)

MINIMUM

25 1/4”

(64.1 cm)

TABLE DIMENSIONS

STRAIGHT THROUGH INSTALLATION

2 1/2”

(6.4 cm)

OPENING

20 1/2” (52.1 cm)

1 1/2” (3.81 cm) ROLL

TABLE DIMENSIONS

CONNECTION TO DISHMACHINE

25 1/4” (64.1 cm)

300X Series Technical Manual 7610-002-64-22

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6

SECTION 2:

INSTALLATION/OPERATION

INSTRUCTIONS

7

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

FOR SERVICE PERSONNEL: Jackson MSC Inc. provides technical support for all of the dishmachines detailed in this manu-

al. We strongly recommend that you refer to this manual before making a call to our technical support staff. Please have this
manual with you when you call so that our staff can refer you, if necessary, to the proper page. Technical support is available
from 8:00 a.m. to 5:00 p.m. (EST), Monday through Friday. Technical support is not available on holidays. Contact technical
support toll-free at 1-888-800-5672. Please remember that technical support is available for service personnel only. Non-ser­vice personnel should refer to the list of provided service agencies in this manual for local service support.

VISUAL INSPECTION: Before installing the unit, check the container and machine for damage. A damaged container is an indi­cator that there may be some damage to the machine. If there is damage to both the container and machine, do not throw away
the container. The dishmachine has been inspected and packed at the factory and is expected to arrive to you in new, undam­aged condition. However, rough handling by carriers or others may result in there being damage to the unit while in transit. If
such a situation occurs, do not return the unit to Jackson; instead, contact the carrier and ask them to send a representative to
the site to inspect the damage to the unit and to complete an inspection report. You must contact the carrier within 48 hours of
receiving the machine. Also, contact the dealer through which you purchased the unit.

UNPACKING THE DISHMACHINE: Once the machine has been removed from the container, ensure that there are no miss­ing parts from the machine. This may not be obvious at first. If it is discovered that an item is missing, contact Jackson imme­diately to have the missing item shipped to you.

LEVEL THE DISHMACHINE: The dishmachine is designed to operate while being level. This is
important to prevent any damage to the machine during operation and to ensure the best results
when washing ware. The unit comes with adjustable bullet feet, which can be turned using a pair
of channel locks or by hand if the unit can be raised safely. Ensure that the unit is level from side
to side and from front to back before making any connections.

PLUMBING THE DISHMACHINE: All plumbing connections must comply with all applicable local,
state, and national plumbing codes. The plumber is responsible for ensuring that the incoming water line is thoroughly flushed
prior to connecting it to any component of the dishmachine. It is necessary to remove all foreign debris from the water line that
may potentially get trapped in the valves or cause an obstruction. Any valves that are fouled as a result of foreign matter left in
the water line, and any expenses resulting from this fouling, are not the responsibility of the manufacturer.

Raise

Frame with Adjustable Foot

Lower

CONNECTING THE DRAIN LINE: The drain for the models covered in this manual are gravity discharge drains. All piping from
the 1 1/2” FNPT connection on the waste accumulator must be pitched (1/4” per foot) to the floor or sink drain. All piping from
the machine to the drain must be a minimum 1 1/2” NPT and shall not be reduced. There must also be an air gap between the
machine drain line and the floor sink or drain. If a grease trap is required by code, it should have a flow capacity of 5 gallons
per minute.

WATER SUPPLY CONNECTION: Ensure that you have read the section entitled
“PLUMBING THE DISHMACHINE” above before proceeding. Install the water supply

Adjusting screw
line (3/4” pipe size minimum) to the dishmachine line strainer using copper pipe. It is
recommended that a water shut-off valve be installed in the water line between the main
supply and the machine to allow access for service. The water supply line is to be capa-

Locking nut

ble of 20A5 PSI “flow” pressure at the recommended temperature indicated on the data
plate.

If the water level is too low or too high, check the incoming water pressure. It should be
20 A 5 PSI. Too high of pressure results in too much water; too low of pressure results
in too little water. To adust the regulator, loosen the nut at the top, this will allow you to
screw or unscrew the adjustment. With a screwdriver, turn the adjuster clockwise to
increase pressure or counter clockwise to decrease it.

In areas where the water pressure fluctuates or is greater than the recommended pres-

Incoming Plumbing Connection

sure, it is recommended that a water pressure regulator be installed.
Do not confuse static pressure with flow pressure. Static pressure is the line pressure in a “no flow” condition (all valves and

services are closed). Flow pressure is the pressure in the fill line when the fill valve is opened during the cycle.

300X Series Technical Manual 7610-002-64-22

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8

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS (CONTINUED)

It is also recommended that a shock absorber (not supplied with the models covered in this manual) be installed in the incom­ing water line. This prevents line hammer (hydraulic shock), induced by the solenoid valve as it operates, from causing dam­age to the equipment.

PLUMBING CHECK: Slowly turn on the water supply to the machine after the incoming fill line and the drain line have been
installed. Check for any leaks and repair as required. All leaks must be repaired prior to placing the machine in operation.

STEAM LINE CONNECTION: The 300XS is designed to use low pressure steam as a source of heat for wash tank water. The
machine comes with lines by which the source steam needs to be connected. Connect all steam lines to the machine as all
applicable codes provide. See machine data plate for information concerning steam flow pressure.

CHEMICAL DISPENSING EQUIPMENT: The 300XLT machine requires that a separate chemical feeder be connected to it to pro­vide the required detergent and sanitizer. This feeder needs to be able to operate against a head of 25 PSI and provide 1.79 ml of
a 10% Chlorine sanitizer per minute.

ELECTRICAL POWER CONNECTION: Electrical and grounding connections must comply with the applicable portions of the
National Electrical Code ANSI/NFPA 70 (latest edition) and/or other electrical

Terminal Block Ground Lug

codes.
Disconnect electrical power supply and place a tag at the disconnect switch to

indicate that you are working on the circuit.
The dishmachine data plate is located on the right side and to the front of the

machine. Refer to the data plate for machine operating requirements, machine
voltage, total amperage load and serial number.

To install the incoming power lines, open the control box. This will require taking
a phillips head screwdriver and removing the one(1) screw on the front cover of
the control box. Install 3/4” conduit into the pre-punched holes in the back of the
control box. Route power wires and connect to power block and grounding lug.
Install the service wires (L1, L2 & L3 (3 phase models only.)) to the appropriate
terminals as they are marked on the terminal block. Install the grounding wire

Electrical Connection

into the lug provided.
It is recommended that “DE-OX” or another similar anti-oxidation agent be used on all power connections.
VOLTAGE CHECK: Ensure that the power switch is in the OFF position and apply power to the dishmachine. Check the incom-

ing power at the terminal block and ensure it corresponds to the voltage listed on the data plate. If not, contact a qualified ser­vice agency to examine the problem. Do not run the dishmachine if the voltage is too high or too low. Shut off the service break­er and mark it as being for the dishmachine. Advise all proper personnel of any problems and of the location of the service
breaker. Replace the control box cover and tighten down the screws.

300X Series Technical Manual 7610-002-64-22

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9

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

300X SYSTEM FLOW DIAGRAM

FROM BUILDING
WATER SUPPLY

WATER TREATMENT

CARTRIDGE IF

INSTALLED

Y-STRAINER

RINSE ARM

PRESSURE
REGULATING
VALVE

RINSE

SOLENOID

VALVE

VACUUM
BREAKER

DISHMACHINE

WASH TANK HEATER

PRESSURE
GAUGE

S

All items found within the dotted region are found
within the footprint of the machine.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

RINSE BOOSTER HEATER

RINSE BOOSTER TANK

10

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

300XN/XLT SYSTEM FLOW DIAGRAM

RINSE ARM

VACUUM
BREAKER

PRESSURE
GAUGE

FROM BUILDING
WATER SUPPLY

WATER TREATMENT

CARTRIDGE IF

INSTALLED

Y-STRAINER

PRESSURE
REGULATING
VALVE

S

WASH TANK HEATER

RINSE
SOLENOID
VALVE

300X Series Technical Manual 7610-002-64-22

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11

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

All items found within the dotted region are found
within the footprint of the machine.

MANUAL

SHUTOFF

BUILDING

STEAM

SUPPLY

BUILDING

STEAM

RETURN

VALVE

Y-STRAINER

300XS SYSTEM FLOW DIAGRAM

VACUUM
BREAKER

PRESSURE
GAUGE

STEAM

SOLENOID

VALVE

S

STEAM COILS

BUILDING

WATER

SUPPLY

BUILDING

STEAM

SUPPLY

BUILDING

STEAM

RETURN

WATER TREATMENT

CARTRIDGE (IF

INSTALLED)

STEAM

TRAP

EXTERNAL STEAM BOOSTER

RINSE
SOLENOID

S

VALVE

Y-STRAINER

PRESSURE

REGULATING

VALVE

Steam plumbing should be assembled and connected
to the steam booster in accordance with the steam
booster manufacturer’s instructions and applicable
codes.

300X Series Technical Manual 7610-002-64-22

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12

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

DETERGENT CONTROL

Detergent usage and water hardness are two factors that contribute greatly to how efficiently your dishmachine will operate.
Using detergent in the proper amount can become, in time, a source of substantial savings. A qualified water treatment spe­cialist can tell you what is needed for maximum efficiency from your detergent, but you should still know some basics so you’ll
understand what they are talking about.

First, you must understand that hard water greatly effects the performance of the dishmachine. Water hardness is the amount
of dissolved calcium and magnesium in the water supply. The more dissolved solids in the water, the greater the water hard­ness. Hard water works against detergent, thereby causing the amount of detergent required for washing to increase. As you
use more detergent, your costs for operating the dishmachine will increase and the results will decrease. The solids in hard
water also may build-up as a scale on wash and rinse heaters, decreasing their ability to heat water. Water temperature is
important in removing soil and sanitizing dishes. If the water cannot get hot enough, your results may not be satisfactory. This
is why Jackson recommends that if you have installed the machine in an area with hard water, that you also install some type
of water treatment equipment to help remove the dissolved solids from the water before it gets to the dishmachine.

Second, hard water may have you adding drying agents to your operating cycle to prevent spotting, when the real problem is
deposited solids on your ware. As the water evaporates off of the ware, the solids will be left behind to form the spotting and
no amount of drying agent will prevent this. Again, using treated water will undoubtedly reduce the occurrences of this prob­lem.

Third, treated water may not be suitable for use in other areas of your operation. For instance, coffee made with soft water may
have an acid or bitter flavor. It may only be feasible to install a small treatment unit for the water going into the dishmachine
itself. Discuss this option with your qualified water treatment specialist.

Even after the water hardness problems have been solved, there still must be proper training of dishmachine operators in how
much detergent is to be used per cycle. Talk with your water treatment specialist and detergent vendor and come up with a
complete training program for operators. Using too much detergent has as detrimental effects as using too little. The proper
amount of detergent must be used for job. It is important to remember that certain menu items may require extra detergent by
their nature and personnel need to be made aware of this. Experience in using the dishmachine under a variety of conditions,
along with good training in the operation of the machine, can go a long way in ensuring your dishmachine operates as effi ­ciently as possible.

Certain dishmachine models require that chemicals be provided for proper operation and sanitization. Some models even
require the installation of third-party chemical feeders to introduce those chemicals to the machine. Jackson does not recom­mend or endorse any brand name of chemicals or chemical dispensing equipment. Contact your local chemical distributor for
questions concerning these subjects.

Some dishmachines come equipped with integral solid detergent dispensers. These dispensers are designed to accommodate
detergents in a certain sized container. If you have such a unit, remember to explain this to your chemical distributor upon first
contacting them.

As explained before, water temperature is an important factor in ensuring that your dishmachine functions properly. The data
plate located on each unit details what the minimum temperatures must be for either the incoming water supply, the wash tank
and the rinse tank, depending on what model of dishmachine you have installed. These temperatures may also be followed by
temperatures that Jackson recommends to ensure the highest performance from you dishmachine. However, if the minimum
requirements are not met, the chances are your dishes will not be clean or sanitized. Remember, a dish can look clean, but it
may not be sanitized. Instruct your dishmachine operators to observe the required temperatures and to report when they fall
below the minimum allowed. A loss of temperature can indicate a much larger problem such as a failed heater or it could also
indicate that the hot water heater for your operation is not up to capacity and a larger one may need to be installed.

There are several factors to consider when installing your dishmachine to ensure that you get the best possible results from it
and that it operates at peak efficiency for many years. Discuss your concerns with your local chemical distributor and water
treatment specialist before there is a problem.

300X Series Technical Manual 7610-002-64-22

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13

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

OPERATION INSTRUCTIONS

PREPARATION: Before proceeding with the start-up of the unit, verify the following:

1. The pump intake, and wash tank strainers are in place and is clean.

2. The drain stopper is installed.

3. That the wash and rinse arms are screwed securely into place and that their endcaps are tight. The wash and rinse arms should
rotate freely.

POWER UP: To energize the unit, turn on the power at the service breaker. The voltage should have been previously verified as
being correct. If not, the voltage will have to be verified. Verify that the gas supply to the machine is on as well.

FILLING THE WASH TUB: Ensure that the delime switch is in the NORMAL position, and place the power switch into the ON posi­tion. The models covered in this manual should fill automatically and shut off when the appropriate level is reached (the gas burn­ers should also automatically ignite as well). Verify that the drain stopper is preventing the wash tub water from pouring out exces­sively. There will probably be some slight leakage from the drain hole. Verify that there are no other leaks on the unit before pro­ceeding any further. The wash tub must be completely filled before operating the wash pump to prevent damage to the compo ­nent. Once the wash tub is filled, the unit is ready for operation.

The water level was set at the factory. If the water level is not at the level noted above, it will require adjustment. Check to ensure
that the recommended water pressure is being supplied to the machine (20A5 PSI). If the water pressure is correct then the fill
valve will need adjustment.

WARE PREPARATION: Proper preparation of ware will help ensure good results and less re-washes. If not done properly, ware
may not come out clean and the efficiency of the dishmachine will be reduced. It is important to remember that a dishmachine is
not a garbage disposal and that simply throwing unscraped dishes into the machine simply defeats the purpose altogether of wash­ing the ware. Scraps should be removed from ware prior to being loaded into a rack.

Pre-rinsing and pre-soaking are recommended, especially for silverware and casserole dishes. Place cups and glasses upside
down in racks so that they do not hold water during the cycle. The dishmachine is meant not only to clean, but to sanitize as well,
to destroy all of the bacteria that could be harmful to human beings. In order to do this, ware must be properly prepared prior to
being placed in the machine.

DAILY MACHINE PREPARATION: Refer to the section entitled “PREPARATION” at the top of this page and follow the instructions
there. Afterwards, check that all of the chemical levels are correct and/or that there is plenty of detergent available for the expect­ed workload.

WARM-UP CYCLES: For a typical daily start-up, it is recommended to run the machine through 3 cycles to ensure that all of the
cold water is out of the system and to verify that the unit is operating correctly. To cycle the machine, ensure that the power is on
and that the tub has filled to the correct level. Lift the doors and the cycle light will illuminate. When the light goes out, close the
doors, the unit will start, run through the cycle, and shut off automatically. Repeat this two more times. The unit should now be
ready to proceed with the washing of ware.

WASHING A RACK OF WARE: To wash a rack, open the doors completely (being careful for hot water that may drip from the
doors) and slide the rack into the unit. Close the doors and the unit will start automatically. Once the cycle is completed, open the
door (again watching for the dripping hot water) and remove the rack of clean ware. Replace with a rack of soiled ware and close
the doors. The process will then repeat itself.

OPERATIONAL INSPECTION: Based upon usage, the wash tank strainer may become clogged with soil and debris as the work­day progresses. Operators should regularly inspect the wash tank strainer to ensure it has not become clogged. If the strainer
does, it will reduce the washing capability of the machine. Instruct operators to clean out the wash tank strainer at regular intervals
or as required by work load.

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14

SECTION 2: INSTALLATION/OPERATION INSTRUCTIONS

OPERATION INSTRUCTIONS (CONTINUED)

SHUTDOWN AND CLEANING: At the end of the workday, close the doors. When the unit completes the cycle, turn the power

switch to the OFF position and open the doors. Manually remove the drain stopper from the tub and allow the tub to drain (NOTE:
the wash tank water will be hot so caution is advised). Once the wash tub is drained, remove the wash tank strainer and the pump
suction strainer. Remove soil and debris from the strainer and set to the side. Unscrew the wash and rinse arms from their mani ­folds. Remove the endcaps and flush the arms with water. Use a brush to clean out the inside of the arms. If the nozzles appear
to be clogged, use a toothpick to remove the obstruction. Wipe the inside of the unit out, removing all soil and scraps. Reassemble
the wash and rinse arms and replace them in the unit. The arms only need to be hand tight, do not use tools to tighten them down.
Reinstall the strainers and close the doors.

This equipment is not recommend for use with deionized water or other aggressive fluids. Use of deionized
water or other aggressive fluids will result in corrosion and failure of materials and components. Use of deion­ized water or other aggressive fluids will void the manufacturer's warranty.

300X Series Technical Manual 7610-002-64-22

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15

SECTION 3:

PREVENTATIVE MAINTENANCE

16

SECTION 3: PREVENTATIVE MAINTENANCE

PREVENTATIVE MAINTENANCE

The dishmachines covered in this manual are designed to operate with a minimum of interaction with the operator. However,
this does not mean that some items will not wear out in time. Jackson highly recommends that any maintenance and repairs
not specifically discussed in this manual should be performed by QUALIFIED SERVICE PERSONNEL ONLY. Performing main­tenance on your dishmachine may void your warranty if it is still in effect, so if you have a question or concern, do not hesitate
to contact one of the QUALIFIED SERVICE AGENCIES listed in the back of this manual.

There are many things that operators can do to prevent catastrophic damage to the dishmachine. One of the major causes of
component failure has to do with prescrapping procedures. A dishmachine is not a garbage disposal; any large pieces of mate­rial that are put into the machine shall remain in the machine until they are either broken up (after spreading out on your ware!)
or physically removed. Strainers are installed to help catch debris, but they do no good if they are clogged. Have operators reg­ularly inspect the pan strainers to ensure (1) that they are free of soil and debris and (2) they are laying flat in the tub.

When cleaning out strainers, do NOT beat them on waste cans. The strainers are made of metal and can be forgiving; but once
severe damage is done, it is next to impossible for the strainer to work in the way it was designed to. Wipe out strainers with
a rag and rinse under a faucet if necessary. For stubborn debris, a toothpick should be able to dislodge any obstructions from
the perforations. Always ensure that strainers are placed back in the machine before operation and that they lay flat in the tub.

You may wish to also refer to the page entitled “Detergent Control” in order to learn more about how your water hardness will
effect the performance of your machine. Hard water makes dishmachines work harder and decreases efficiency.

Again, it is important to remind operators that trying to perform corrective maintenance on the dishmachine could lead to larg­er problems or even cause harm to the operator. If a problem is discovered; secure the dishmachine using proper shut down
procedures as listed in this manual and contact a QUALIFIED SERVICE AGENCY as listed in the back of this manual.

Some problems, however, may having nothing to do with the machine itself and no amount of preventative maintanence is
going to help. A common problem has to do with temperatures being too low. Verify that the water temperatures coming to your
dishmachine match the requirements listed on the machine data plate. There can be a variety of reasons why your water tem­perature could be too low and you should discuss it with a QUALIFIED SERVICE AGENCY to determine what can be done.

By following the operating and cleaning instructions in this manual, you should get the most efficient results from your machine.
As a reminder, here are some steps to take to ensure that you are using the dishmachine the way it was designed to work:

1. Ensure that the water temperatures match those listed on the machine data plate.

2. Ensure that all strainers are in place before operating the machine.

3. Ensure that all wash and/or rinse arms are secure in the machine before operating.

4. Ensure that drains are closed/sealed before operating.

5. Remove as much soil from dishes by hand as possible before loading into racks.

6. Do not overfill racks.

7. Ensure that glasses are placed upside down in the rack.

8. Ensure that all chemicals being injected to machine have been verified as being at the correct concentrations.

9. Clean out the machine at the end of every workday as per the instructions in the manual.

10. Always contact a QUALIFIED SERVICE AGENCY whenever a serious problem arises.

11. Follow all safety procedures, whether listed in this manual or put forth by local, state or national codes/regulations.

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17

SECTION 4:

TROUBLESHOOTING

18

SECTION 4: TROUBLESHOOTING

COMMON PROBLEMS

WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified ser­vice technician. Many of the tests require that the unit have power to it and live electrical components be
exposed. USE EXTREME CAUTION WHEN TESTING THE MACHINE.

Problem: Dishmachine will not fill after the door is close. Power “ON” light is illuminated.

1. Faulty rinse solenoid valve. Repair or replace valve as required.

2. Faulty door switch. Verify the wiring of the switch; if correct, replace the switch.

3. Fouled/faulty high level probe. Clean probe if fouled. If clean, and still not working, replace.

Problem: Dishmachine will not fill after the door is closed. Power “ON” light is not illuminated.

1. Service breaker tripped. Reset. If the breaker trips again, contact an electrician to verify the amp draw of the machine.

2. Machine not connected to power source. Verify that the machine has been properly connected to the power source.

3. Faulty power source. Verify the wiring of the switch; if correct, replace switch.

Problem: Dishmachine will not run after the door is closed. Power “ON” light is illuminated and the unit is filling.

1. Wash motor faulty/damaged. Verify that the wash motor is getting power. If so, replace the motor.

2. Wash motor contactor faulty. Check for continuity; if contacts are open, replace the contactor.

Problem: Dishmachine runs continuously in the wash cycle.

1. Machine is in Delime mode. Flip NORMAL/DELIME switch to NORMAL mode.

Problem: Wash or rinse heater does not work.

1. Faulty heater element. Check element for continuity; if open, replace the heater.

2. Faulty heater contactor. Replace the contactor.

3. Misadjusted/faulty thermostat(s). Verify operation and setting of thermostats, replace if necessary.

Problem: Dishmachine fill slowly and/or the rinse is weak.

1. Clogged or obstructed rinse arms. Remove and clean the rinse arms.

2. Low incoming water pressure. Adjust the water pressure regulator to ensure that there is 20 PSI flow.

3. Y-strainer is clogged. Clean out the Y-strainer.

Problem: Rinse water not reaching required temperature.

1. Faulty rinse heater. Check element for continuity; if open, replace heater.

2. Misadjusted/faulty thermostat(s). Verify operation and setting of thermostats, replace if necessary.

3. Rinse thermometer is defective. Replace thermometer.

Problem: Wash water is not reaching required temperature.

1. Faulty wash heater. Check element for continuity; if open, relace the heater.

2. Misadjusted/faulty thermostat(s). Verify operation and setting of thermostats, replace if necessary.

3. Wash thermometer is defective. Replace thermometer.

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19

SECTION 4: TROUBLESHOOTING

COMMON PROBLEMS

WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified ser­vice technician. Many of the tests require that the unit have power to it and live electrical components be
exposed. USE EXTREME CAUTION WHEN TESTING THE MACHINE.

Problem: Doors will not close completely.

1. Improper spring tension. Adjust spring tension as required by loosening (not removing) spring bolt nuts and adjusting the
tension. Tighten nuts back when done.

2. Obstruction in door channel. Remove the obstruction.

3. Doors are not square with frame. Adjust the frame to accommodate the doors.

Problem: Water leaks at the wash pump.

1. Wash pump seal defective. Replace the seal.

2. Petcock or pump drain (if equipped) not shut/tight. Close or tighten.

3. Loose hoses (hose clamps) on the wash pump. Tighten the hose clamps.

Problem: Will not rinse during autocycle.

1. Defective rinse solenoid. Repair or replace the rinse solenoid as required.

2. No water to the machine. Verify that there is water at 20A5 PSI connected to the machine.

Problem: Dishes are not coming clean.

1. Machine temperatures are not up to the minimum requirements. Verify that incoming water, rinse water, and wash water
match the required temperatures as listed on the machine data plate.

2. No detergent/too much detergent. Adjust detergent concentration as required for the amount of water held by the
machine.

3. Solid dispenser canister is empty. Replace the canister.

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20

SECTION 5:

SERVICE PROCEDURES

21

SECTION 5: SERVICE PROCEDURES

RINSE SOLENOID VALVE REPAIR PARTS KIT

These dishmachines are equipped with electrical
solenoid valves to allow for automatic fill and rinse. These
valves are designed to specific tolerances and design aspects
that must be met in order to function properly.

Jackson offers repair kits for replacing some of the
wear items associated with solenoid valves which will allow
you to save money in that replacement of these parts can take
place without removing the solenoid valve from the plumbing
assembly.

The instructions provided here are for maintenance
personnel only. Unauthorized persons should not attempt any
of the steps contained in these instructions.

Warning: many of the instructions and steps
within this document require the use of tools. Only autho ­rized personnel should ever perform any maintenance
procedure on the dishmachine!

PREPARATION

1. Power must be secured to the unit at the service
breaker. Tag or lock out the service breaker to prevent acci­dental or unauthorized energizing of the machine.

2. Ensure that incoming water to the machine is
secured either by use of a shut-off valve or disconnecting the
incoming water line.

TOOLS REQUIRED

The following tools will be needed to perform this

maintenance evolution:

1. Small flathead screwdriver

2. Medium flathead screwdriver

2. Needle nose pliers

3. 5/16” nutdriver

4. Channel locks

5. 12” pipe wrench

STEPS

1. Remove the top screw with the 5/16” nutdriver. Remove the
screw and the data plate and set to the side.

Removing the top screw

2. With the top screw and data plate removed, grasp the sole ­noid coil and gently pull up. The coil should slide up, allowing
you to remove it from the valve bonnet. If you are wanting to
replace the coil, continue on with Step 3. If you are wanting to
replace some of the internal components of the valve, proceed
to step 12.

TIME REQUIRED

It is estimated that it will take (1) person twenty min ­utes to perform this task, not including all of the items indicat­ed in the section entitled “PREPARATION”.

IMPORTANT NOTES

1. Read these instructions thoroughly before attempt ­ing this maintenance evolution. Become familiar with the parts
and what actions need to be taken. This will save time in the
long run!

2. The procedures demonstrated in this manual are
shown being performed on an AJ-44C rack conveyor dishma­chine. The actual maintenance steps, however, apply to any
Parker style solenoid valve found on a Jackson dishmachine.

Removing the coil

3. NOTE: Replacing the solenoid coil requires working with
the wiring of your machine. It is important that all wiring main ­tenance be performed by qualified personnel. Always verify
the wiring steps presented in this instruction with the schemat ­ic that shipped with the unit. A current schematic can also be
found in the unit’s installation manual. Before beginning any
step that involves working with wiring, ensure that the steps
located in the section entitled “Preparation” have been per­formed. Power must be secured to the machine at the service
breaker. Failure to do so could result in severe injury to main ­tenance personnel.

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SECTION 5: SERVICE PROCEDURES

RINSE SOLENOID VALVE REPAIR PARTS KIT (CONTINUED)

Prying open the coil wire cover

4. When replacing the coil, ensure that when removing the coil
wire cover that care is taken not to damage the wires inside.
Using the medium flathead screwdriver, gently use it to open
the cover enough to where it could be pulled off.

Straightening the wires

5. Once the coil wire cover has been removed and set to the
side, take the internal wires and pull them out straight.

Loosening the conduit nut

7. Using a pair of channel locks, gently loosen the conduit
retaining ring for the conduit nut. Once it is loosened, use your
fingers to unscrew and remove it.

8. Pull the conduit away and discard the bad coil. Take the
new coil and attach the conduit, reinstall & tighten the conduit
nut, and pull the wires through so that you will be able to wire
the valve back up.

9. Reconnect the wires from the conduit to the wires from the
solenoid as they had been connected previously. Ensure that
the wire nuts are on tight.

10. Slide the coil wire cover back on, taking care not to dam­age the wires.

11. If you are done performing maintenance on the valve, con­tinue on to step 22. Otherwise, please go on to step 12.

Removing the wire nuts

6. Remove the wire nuts from the wires and separate them.

Loosening the valve bonnet

12. To remove the valve bonnet, grasp it with the jaws of the
pipe wrench and turn to the left. Note: on some models you
may have to remove the valve in order to perform this and any
further steps. Be careful not to damage the plumbing assem­bly. Only use the pipe wrench enough to where you can spin
the valve bonnet off with your hand.

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SECTION 5: SERVICE PROCEDURES

RINSE SOLENOID VALVE REPAIR PARTS KIT (CONTINUED)

Removing the valve bonnet

13. Slowly remove the valve bonnet. Note: The spring for the
plunger is located directly under the bonnet and may come
free if you are not careful. Remove the plunger, spring and
valve bonnet and place to the side.

Removing the diaphragm

17. Remove the diaphragm retainer and then the diaphragm
itself. Many problems associated with a solenoid valve can be
traced to a clogged pilot port in the diaphragm.

Removing the O-ring

14. Remove the O-ring and inspect it. If it has any tears or cuts
or excessive flat spaces, it should be replaced.

15. Examine the threads for the valve bonnet. Check them for
scoring or signs of damage. Take a cloth and clean them out
to remove any foreign particles that might get lodged in the
threads and cause a leak. Severely damage threads should
not be repaired; instead it is recommended that the entire
valve should be replaced. These instructions do not provide
information on replacing the solenoid valve.

16. Note: Even though an O-ring may not appear damaged, it
is a good idea to go ahead and replace it if you have a new
one. This will help ensure that your valve remains leak-free in
the future!

300X Series Technical Manual 7610-002-64-22

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Pointing out the extension hole

18. As indicated in the photo above, the extension hole can
become clogged. If it is difficult to clean out, you can use a
heated straight pin to push through the hole. The center hole,
the pilot port, must also be clear. If the diaphragm is torn or
bent in any way, it must be replaced.

1

2

Diaphragm showing (1) pilot port and (2) extension hole

24

SECTION 5: SERVICE PROCEDURES

RINSE SOLENOID VALVE REPAIR PARTS KIT (CONTINUED)

21. With the mesh screen removed, look down into the valve
and verify it is not clogged. Remove any foreign objects from
the valve body that would obstruct flow.

22. Reassemble the valve, reversing the steps needed to take
it apart. Replace defective replacement parts with new parts
from ordered kits. Ensure that components are sufficiently
tightened to prevent leakage.

AFTER MAINTENANCE ACTIONS

Removing the screen retainer

19. Using the small flathead screwdriver, lift out the screen
retainer. Verify that the holes in it are free of clogs and debris.

Removing the mesh strainer screen

20. Again using the small flathead screwdriver, carefully
remove the mesh screen from inside the valve body. The
screen should be taken and rinsed out to remove any debris
fouling it.

Reconnect the incoming water (if disconnected) and
turn on. Then restore power to the unit. Run the unit for at
least 10 minutes to ensure there are no leaks. If any problems
arise please contact Jackson.

SPECIAL PARTS

Solenoid Valve Plunger Kit

Includes plunger and spring
Part number 06401-003-07-40

Solenoid Valve Diaphragm Kit

Includes diaphragm and o-ring
Part number 06401-003-07-41 (1/2” NPT)

Solenoid Valve 110 Volt Coil and Housing Kit

Part number 06401-003-07-43

Solenoid Valve 220 Volt Coil and Housing Kit

Part number 06401-003-07-44

Complete Solenoid Valve

Part number 04810-100-12-18 (1/2”, 110 Volt)
Part number 04810-100-09-18 (1/2”, 220 Volt)

View inside the solenoid valve body

300X Series Technical Manual 7610-002-64-22

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25

SECTION 5: SERVICE PROCEDURES

VACUUM BREAKER REPAIR PARTS KIT

These dishmachines are equipped with vacuum
breakers to serve as back-flow prevention devices. ASSE
requirements specify what type of back-flow prevention is nec­essary on dishmachines. Vacuum breakers, unlike air gaps,
have certain parts that have specific tolerances and design
aspects that must be met in order to function properly.

Jackson offers repair kits for replacing some of the
wear items associated with vacuum breakers which will allow
you to save money in that replacement of these parts can take
place without removing the vacuum breaker from the plumb­ing assembly.

The instructions provided here are for maintenance
personnel only. Unauthorized persons should not attempt any
of the steps contained in these instructions.

Warning: many of the instructions and steps
within this document require the use of tools. Only autho ­rized personnel should ever perform any maintenance
procedure on the dishmachine!

PREPARATION

1. Power must be secured to the unit at the service
breaker. Tag or lock out the service breaker to prevent acci­dental or unauthorized energizing of the machine.

2. Ensure that incoming water to the machine is
secured either by use of a shut-off valve or disconnecting the
incoming water line.

TOOLS REQUIRED

STEPS

1. Note: These instructions only apply to vacuum breakers
(1/2” NPT and 3/4” NPT) as pictured below. The repair kits
indicated in these instructions will only work on those style of
back-flow preventers. If you have a machine with a different
style of vacuum breaker, contact Jackson about replacement
components.

Vacuum breaker

2. Note: Even though the photos in these instructions show a
vacuum breaker that has been removed from the plumbing
assembly, these maintenance steps could be performed with it
installed so long as the requirements in the section entitled
“PREPARATION” have been met.

3. Remove the top cap by gripping firmly and turning to the
left. The cap should come off after a few turns.

The following tools will be needed to perform this

maintenance evolution:

1. Small flathead screwdriver

2. Needle nose pliers

TIME REQUIRED

It is estimated that it will take (1) person twenty min ­utes to perform this task, not including all of the items indicat­ed in the section entitled “PREPARATION”.

IMPORTANT NOTES

1. Read these instructions thoroughly before attempt ­ing this maintenance evolution. Become familiar with the parts
and what actions need to be taken. This will save time in the
long run!

Removing the cap

4. Set the cap to the side.

5. Using the needle nose pliers, gently lift out the plunger and
set to the side. Examine the brass seating surface inside the
vacuum breaker. The plunger is required to sit flat on this sur­face so it must be free of defects, imperfections and the like. If
there is debris, remove it. If it is chipped or cracked then the
vacuum breaker must be replaced. Failure to do so may result
in the vacuum breaker not working according to its design and
could result in damage to the dishmachine.

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SECTION 5: SERVICE PROCEDURES

VACUUM BREAKER REPAIR PARTS KIT (CONTINUED)

Removing the plunger

6. Your repair kit comes with a new plunger. Examine the old
one and ensure that the mating surface is not damaged or cut.
Also inspect the rubber seal on the top of the plunger to
ensure it is in good condition and not torn.

7. If any of these conditions are present, replace the old
plunger with the new one from your kit. Verify that the new
plunger is also free from defects. If it is not, contact Jackson
immediately.

8. The plunger should drop into the vacuum breaker and seat.
Ensure it is not flipped upside down (the orange seal ring
should be up towards the top of the vacuum breaker).

9. Pick up the cap and examine it. With a soft towel, remove
any grit, grime or debris that may have gotten caught in the
threads of both the cap retainer or the vacuum breaker body.
There is an O-ring that should be present on the cap retainer
as well. Regardless of the condition of the plunger, this O-ring
should be replaced once the cap is removed. Using a small
flathead screwdriver, remove the old O-ring.

Examining the seal ring on the plunger

Examining the plunger seating surface

Replacing the O-ring

10. With the new O-ring in place, screw the cap back on the
vacuum breaker body. The cap needs to only be hand tight
(snug).

AFTER MAINTENANCE ACTIONS

1. Reconnect the incoming water (if disconnected)
and turn on. Then restore power to the unit. Run the unit for
at least 10 minutes to ensure there are no leaks. If any prob ­lems arise please contact Jackson.

SPECIAL PARTS

Vacuum breaker repair kit:

For 1/2” NPT order 06401-003-06-23

Complete Vacuum Breaker Assembly

Part number 04820-003-06-13 (1/2”)

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27

SECTION 5: SERVICE PROCEDURES

RINSE REGULATING THERMOSTAT REPLACEMENT

Many dishmachines comes with integral booster
tanks to ensure proper temperature of the final rinse. Jackson
has predominantly used two manufacturers of thermostats,
EGO and Stemco. These instructions are for use with kit
06401-003-13-94, which is to replace an EGO rinse regulating
thermostat with a Stemco brand.

Jackson offers all of the repair parts necessary for
performing this task.

The instructions provided here are for maintenance
personnel only. Unauthorized persons should not attempt any
of the steps contained in these instructions.

Warning: many of the instructions and steps
within this document require the use of tools. Only autho ­rized personnel should ever perform any maintenance
procedure on the dishmachine!

PREPARATION

1. Power must be secured to the unit at the service
breaker. Tag or lock out the service breaker to prevent acci­dental or unauthorized energizing of the machine.

2. Ensure that incoming water to the machine is
secured either by use of a shut-off valve or disconnecting the
incoming water line.

3. The unit must be drained completely with the drain
stopper removed (if applicable).

4. Remove any and all access covers.

STEPS

1. Some models, such as the Tempstar pictured below, will
require that the thermostat bracket removed from the heater.
Using a ratchet, extension and 1/2” socket, remove the nuts
and lock washer holding the bracket on.

Removing the thermostat bracket/heater nuts.

TOOLS REQUIRED

The following tools may be needed to perform this

maintenance evolution:

1. 3/8” Nutdriver

2. 7/16” Combination Wrench

3. Needlenose Pliers

4. Phillipshead Screwdriver

5. Flathead Screwdriver

6. Ratchet with 1/2” Socket

TIME REQUIRED

It is estimated that it will take (1) person sixty minutes
to perform this task, not including all of the items indicated in
the section entitled “PREPARATION”.

IMPORTANT NOTES

1. Read these instructions thoroughly before
attempting this maintenance task. Become familiar with the
parts and what actions need to be taken. This will save time in
the long run!

2. These instructions are shown using a Tempstar
model dishmachine. However the steps provided should work
for models such as the JP-24 as well.

Removing the thermostat bracket.

2. With the thermostat and thermostat bracket safely out of the
way, use a 7/16” combination wrench to loosen and then
remove the imperial brass fitting holding the probe in.

3. Remove the wires from the old thermostat. It may be nec­essary to use the needlenose pliers to accomplish this.

4. Remove the thermostat bracket mounting nuts with the
7/16” nutdriver.

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SECTION 5: SERVICE PROCEDURES

RINSE REGULATING THERMOSTAT REPLACEMENT

Location of the thermostat bracket (JP-24).

Remove the thermostat bracket mounting nuts with the 3/8”
nutdriver.

Location of the imperial brass fitting (JP-24).

Pulling the thermostat probe and fitting from the well (Tempstar).

Removing the wires from the thermostat.

5. Attach the jumper wires to the wires that you removed from
the old thermostat.

Removing the imperial brass fitting (Tempstar).

Attaching the jumper wires.

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SECTION 5: SERVICE PROCEDURES

RINSE REGULATING THERMOSTAT REPLACEMENT

Sliding imperial fitting onto new thermostat.

6. Slide the new imperial brass fitting from your kit onto the
new thermostat.

9. Note: regardless of the unit this is being done to, the con­cept is to ensure that the thermostat cannot come into contact
with the heater leads or interfere with the placement of any
covers.

What the installed thermostat should look like (Tempstar).

Putting the new thermostat in the well (Tempstar).

7. Insert the new thermostat/brass fitting combination into the
well and tighten down the brass fitting by hand.

Tightening the brass fitting (Tempstar).

8. Use the 7/16” combination wrench to tighten down the
brass fitting, while also positioning the new thermostat so that
it does not hang over the heater.

What the installed thermostat should look like (JP-24B).

Removing the thermostat screws.

10. Use the phillipshead screwdriver to remove the attach­ment screws on the thermostat for the NORMALLY CLOSED
and COMMON points.

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SECTION 5: SERVICE PROCEDURES

RINSE REGULATING THERMOSTAT REPLACEMENT

Fitting the jumper into the mounting cup.

11. Attach the ring ends of the jumpers to the cups/screws
removed from the thermostat and attach them. The white
jumper is to be connected to COMMON. The orange and
white jumper is to be connected to NORMALLY CLOSED.
Refer to your machine schematic if you have any questions
regarding this.

need to be run on the unit while observing the final rinse tem­perature. The thermostat needs to cycle so that the final rinse
water meets the indicated minimums on the machine data
plate for every cycle.

Calibrating the new thermostat.

SPECIAL NOTES

Securing jumpers to the thermostat.

12. Once both wires are attached, ensure that there is no
excess hanging out where it could become pinched by any
cover or such.

13. Replace the heater nuts (if removed) and torque down as
required per the technical manual. Different models may have
different torque specifications. Contact Jackson Technical
Service if there are any questions regarding this.

AFTER MAINTENANCE ACTIONS

Work performed on Jackson dishmachines by unau­thorized or unqualified personnel may void the warranty.
Before beginning this or any other maintenance evolution on
a unit under warranty, you should contact a certified Jackson
technician or Jackson Technical Service. You can find a list of
qualified service agencies in the back of you unit’s installation
manual.

SPECIAL PARTS

Thermostat Replacement Kit: 06401-003-13-94*

*The kit contains a thermostat, imperial brass fitting,
jumper wires and instructions.

Once the new thermostat is installed, it will be nece­sary to ensure that it operates at the required and appropriate
ranges. The new thermostat has an adjustment that can be
turned using a small flathead screwdriver. Several cycles will

300X Series Technical Manual 7610-002-64-22

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31

SECTION 6:

PARTS SECTION

32

SECTION 6: PARTS SECTION

CONTROL BOX ASSEMBLY

228 29

8

1

3

9

10, 11
12

4

13

5

14
15

6

30

16

7

17

18

19

20 21 22 23 24 25

26 27

300X Series Technical Manual 7610-002-64-22

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33

SECTION 6: PARTS SECTION

CONTROL BOX ASSEMBLY (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 1 Control Box Weldment 05700-002-57-70
2 1 Fuse Holder 05920-401-03-14
3 1 Transformer 05950-400-01-35
4 1 Relay 05945-301-07-40
5 2 Relay, 24V, 10A 05945-002-63-02
6 1 Timer 05945-307-07-93
7 1 Inner Panel 05700-002-57-35
8 1 Switch, Magnetic Reed 05930-002-36-80
9 1 Decal, L1, L2, L3 09905-101-12-66
10 1 Ground Lug 05940-200-76-00
11 1 Decal, Ground 09905-011-86-86
12 1 Terminal Block 05940-011-48-27
13 1 Contactor (not used on 300XN/XLT/XS) 05945-109-01-09
14 1 Relay 05945-109-02-09
15 1 Din Rail, 9 05700-001-26-97
16 1 Relay (not used on 300XN/XLT/XS) 05945-109-03-09
17 1 Digital Display 06685-400-04-00
18 1 Light, Yellow 05945-504-02-90
19 1 Decal, Control Box 09905-002-57-40
20 1 Switch, Manual 05930-002-63-06
21 1 Light, Blue 05945-504-05-90
22 1 Switch, Cycle 05930-002-63-05
23 1 Light, White 05945-504-03-90
24 1 Switch, Power 05930-002-63-04
25 4 Leg, Control Box 05700-002-33-05
* 4 Screw, 1/4”-20 x 2 3/4” Hex Head Cap 05305-274-13-00
* 4 Washer, 1/4”-20 ID S/S 05311-174-01-00
* 4 Locknut, 1/4”-20 S/S Hex with Nylon Insert 05310-374-01-00
26 1 Decal, Warning-Disconnect Power 09905-100-75-93
27 1 Cover, Top Mount Control Box 05700-002-23-03
* 4 Screw, 10-32 x 3/8” Phillips Truss Head 05305-173-12-00
28 1 Decal, Copper Conductors 09905-011-47-35
29 1 Decal, Line Voltage 09905-107-02-12
30 1 Overload (460 Volt Units Only) 05945-304-02-09

Associated Hardware:
Locknut, 10-24 S/S Hex with Nylon Insert 05310-373-01-00
Screw, 10 x 18-8 x 1” S/S Phillips Pan Head 05305-002-63-46
Screw, 10 x 18-8 x 3/8” S/S Phillips Pan Head 05305-002-63-47
Screw, 6 x 18-8 x 3/8” S/S Phillips Pan Head 05305-002-63-49
Screw, 6-32 x 3/8” Phillips Truss Head 05305-171-07-00

300X Series Technical Manual 7610-002-64-22

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34

2, 3

4

SECTION 6: PARTS SECTION

HOOD ASSEMBLY

1

8

7

6

5

ITEM QTY DESCRIPTION Mfg. No.

1 1 Hood, Single Piece Weldment 05700-002-58-08
2 2 Bracket, Cantilever Support 05700-031-88-00
3 6 Wear Button .50 Dia. 05700-011-88-01
4 1 Clamp, Double 05700-002-23-89
5 8 Bolt, 1/4”-20 x 1/2” S/S Hex Head 05305-274-02-00
6 8 Washer, 1/4” I.D. S/S 05311-174-01-00
7 14 Locknut, 1/4”-20 S/S Hex with Nylon Insert 05310-374-01-00
8 2 Support, Hood Bolted On 05700-002-72-89

300X Series Technical Manual 7610-002-64-22

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35

SECTION 6: PARTS SECTION

CANTILEVER ARM/DOOR ASSEMBLIES

23, 18

24, 18

14

1310, 11, 12

2

3

1

4

5

6

9

15, 16

7
8

17, 18

22

03120-100-03-00

Cotter Pin 3/32" x 3/4"

05315-207-01-00

Yoke

05700-000-75-78

2019, 11, 21

Bushing

Washer, Nylon

05311-369-03-00

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

19, 11, 12

Clevis Pin
05315-700-01-00

Nut, 3/8"-16 S/S Hex Locking
05310-256-04-00

36

SECTION 6: PARTS SECTION

CANTILEVER ARM/DOOR ASSEMBLIES (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 1 Cantilever Arm 05700-031-50-67
2 2 Spring Pin, 1/4" x 1 1/8" 05315-407-06-00
3 2 Yoke Assembly 05700-000-75-77
4 2 Rod, Spring 05700-002-29-38
5 2 Spring 05340-109-02-00
6 2 Bolt, Cantilever Hanger Eye 3/8"-16 05306-956-05-00
7 2 Washer, 3/8" ID x 7/8" OD S/S 05311-176-02-00
8 4 Nut, 3/8"-16 S/S Hex 05310-276-01-00
9 2 Connector, Cantilever Arm 05700-011-90-99
10 2 Screw, 1/4"-20 x 1 1/2" Long S/S 05305-274-23-00
11 4 Washer, 1/4" Stainless Steel 05311-174-01-00
12 4 Locknut, 1/4"-20 S/S Hex with Nylon Insert Low Profile 05310-374-02-00
13 2 Sleeve, Cantilever Arm 05700-000-85-69
14 2 Plug, Cantilever Arm 05340-011-35-00
15 1 Magnet, Reed Switch 05930-111-51-68
16 2 Locknut, 8-32 S/S Hex with Nylon Insert 05310-272-02-00
17 1 Door, Right Side (Complete Assembly) 05700-002-30-88
17A 1 Right Door Weldment with Studs 05700-002-29-85
18 6 Door, Guides 05700-111-33-59
19 2 Screw, 1/4"-20 x 1/2" Long S/S 05305-274-02-00
20 2 Spacer, PB Bolt 05700-000-29-40
21 4 Locknut, 1/4"-20 S/S Hex with Nylon Insert 05310-374-01-00
22 2 Door Connector Bracket 05700-021-33-39
23 1 Door, Front (Complete Assembly) 05700-002-30-89
23A 1 Door Only, Front 05700-002-29-83
24 1 Door, Left Side (Complete Assembly) 05700-002-30-87
24A 1 Door Only, Left Side 05700-002-29-86

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

37

SECTION 6: PARTS SECTION

FRAME ASSEMBLY

Locknut, 1/4”-20 S/S Hex with Nylon Insert

05310-374-02-00

Bolt, 1/4”-20 x 1/2”

05305-274-02-00

Front Panel
05700-002-36-65

Bullet Foot

05340-108-01-03

Frame Weldment
05700-031-48-01

Flanged Bullet Foot
05340-002-34-86

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

38

SECTION 6: PARTS SECTION

TUB ASSEMBLY

16

17
16

2 3 4 7 8

5 9

6

12

10, 11

13

14, 11
15

36

35

1

3

34

33

32, 31

18

19, 9

20

SEE PAGE ENTITLED

“WASH MOTORS”

* Represents an item not shown.

Nut, 1/4”-20 Serrated Nut

05310-011-66-49

Pump Support Bracket Complete Assembly

05700-002-00-46

22 2321 24 25 26, 27 28, 29

SEE PAGE ENTITLED

“WASH/RINSE HEATERS”

Bracket, Motor Support Weldment
05700-002-68-31

Pump Support Adjustable Bracket
05700-002-20-41

30

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

39

SECTION 6: PARTS SECTION

TUB ASSEMBLY (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 1 Tub Weldment 05700-002-59-18
2 1 Rack Assembly 05700-002-01-00

1 Rack Guide 05700-001-28-19
3 2 Bulk Head Plug 04730-609-05-00
4 1 Switch, Dual Float 06680-002-68-63
5 1 Gasket 05700-111-35-03
6 1 O-ring 05330-400-05-00
7 4 Bolt, Hex 3/8”-16 x 1 1/4" Long 05305-276-10-00
8 1 Lower Wash Manifold Weldment 05700-031-46-00
9 1 Suction Strain Weldment 05700-001-22-23
10 1 Suction Strain Bracket 05700-001-22-24
11 8 Locknut, 1/4"-20 with Nylon Insert 05310-374-02-00
12 1 Strainer Weldment 05700-021-50-07
13 1 Wash Overflow Weldment 05700-001-25-69
14 1 Overflow Support Bracket 05700-001-27-55
15 1 O-Ring 05330-400-05-00
16 2 Clamp, Hose 1 5/16” to 2 1/4” 04730-719-01-37
17 1 Discharge Hose 05700-011-88-24
18 1 Nipple 05700-021-34-84
19 1 Pump Support Bracket Assembly 05700-002-00-46
20 1 Clamp, Hose 5 5/8" to 6" 04730-011-34-90
21 1 Connector, 1/2” 90B 05975-111-01-00
22 4 Nut, 3/8"-16 S/S Hex 05310-276-01-00
23 4 Lockwasher 3/8” 05311-276-01-00
24 1 Fitting, Olflex 05975-205-43-00
25 1 Union, 1/4” 05700-001-16-52
26 1 Clamp, 1/8" Nylon 05975-601-10-15
27 1 Locknut, 6-32 with Nylon Insert 05310-373-03-00
28 4 Lockwasher, 5/16", S/S, Split 05311-275-01-00
29 4 Nut, Hex, 5/16"-18, S/S 05310-275-01-00
30 4 Locknut, 10-24 with Nylon Insert 05310-373-01-00
31 1 Cover, Wash Heater 05700-031-47-57
32 1 Decal, Warning-Disconnect Power 09905-100-75-93
33 1 Kit, Thermostat, Regulating 06401-003-18-28
34 1 Thermostat, High Limit 05930-121-71-36
35 1 Fitting, 1/4" Imperial Brass 05310-924-02-05
36 1 Wash Heater Gasket 05330-011-47-79

300X Series Technical Manual 7610-002-64-22

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40

SECTION 6: PARTS SECTION

STEAM TUB ASSEMBLY

16

17

2 3 25

5 9

7 8

6

12

10, 11

13
14, 11, 15

1

24

31

3

32

16

18

19

20

4

22, 23 2421

26, 30 27, 28

29

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

41

SECTION 6: PARTS SECTION

STEAM TUB ASSEMBLY (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 1 Tub Weldment 05700-002-79-58
2 1 Rack Assembly 05700-002-01-00

1 Rack Guide 05700-001-28-19
3 2 Bulk Head Plug 04730-609-05-00
4 1 See page entitled “Wash Motors” N/A
5 1 Gasket 05700-111-35-03
6 1 O-ring 05330-400-05-00
7 4 Bolt, Hex 3/8”-16 x 1 1/4" Long 05305-276-10-00
8 1 Lower Wash Manifold Weldment 05700-031-46-00
9 1 Suction Strain Weldment 05700-001-22-23
10 1 Suction Strain Bracket 05700-001-22-24
11 8 Locknut, 1/4"-20 with Nylon Insert 05310-374-02-00
12 1 Strainer Weldment 05700-021-50-07
13 1 Wash Overflow Weldment 05700-001-25-69
14 1 Overflow Support Bracket 05700-001-27-55
15 1 O-Ring 05330-400-05-00
16 2 Clamp, Hose 1 5/16” to 2 1/4” 04730-719-01-37
17 1 Discharge Hose 05700-011-88-24
18 1 Nipple 05700-021-34-84
19 1 Pump Support Bracket Assembly 05700-002-00-46
20 1 Clamp, Hose 5 5/8" to 6" 04730-011-34-90
21 1 Connector, 1/2” 90B 05975-111-01-00
22 4 Nut, 3/8"-16 S/S Hex 05310-276-01-00
23 4 Lockwasher 3/8” 05311-276-01-00
24 1 Fitting, 1/4" Imperial Brass 05310-924-02-05
25 1 Switch, Dual Float 06680-002-68-63
26 1 Clamp, 1/8" Nylon 05975-601-10-15
27 1 Cover, Wash Heater 05700-031-47-57
28 1 Decal, Warning-Disconnect Power 09905-100-75-93
29 2 Locknut, 10-24 with Nylon Insert 05310-373-01-00
30 3 Locknut, 6-32 with Nylon Insert 05310-373-03-00
31 1 Kit, Thermostat, Regulating 06401-003-18-56
32 1 Steam Coil Assembly 05700-002-08-62

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

42

SECTION 6: PARTS SECTION

RINSE TANK ASSEMBLY (300X)

2, 3

4

5

11

SEE PAGE ENTITLED

16 10

9

12

7, 8

“WASH/RINSE HEATERS”.

ITEM QTY DESCRIPTION Mfg. No.

1 1 Booster Tank Weldment 05700-001-22-02
2 2 Locknut, 10-24 with Nylon Insert 05310-373-01-00
3 2 Washer, #10 S/S Flat 05311-173-01-00
4 1 Decal, Warning - Disconnect Power 09905-100-75-93
5 1 Booster Tank Cover Weldment 05700-001-29-30
6 6 Nut, Hex, 5/16"-18 05310-275-01-00
7 4 Locknut, 1/4"-20 with Nylon Insert 05310-374-01-00
8 4 Washer, 1/4" ID, S/S, Flat 05311-174-01-00
9 1 Thermostat, Rinse 05930-510-03-79

1 Kit, Thermostat Replacement 06401-003-13-94

*The kit contains a thermostat, imperial brass fitting, jumper wires and instructions.
10 6 Washer, 5/16” I.D. 05311-175-01-00
11 1 Gasket, Rinse Heater 05330-200-02-70
12 1 Fitting, 1/4" Imperial Brass 05310-924-02-05

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

43

SECTION 6: PARTS SECTION

THERMOSTATS / WASH HEATERS / RINSE HEATERS

To order the thermostats:
Thermostat, High Limit 05930-011-49-43
Kit, Thermostat, Wash Tank 06401-140-00-32

The 300X models covered in this manual come supplied with various heaters, depending on the characteristics of the machine. To
ensure that you order the correct heater for the model you are servicing, please refer to the following table:

40

°F Rise

Model Volts Hz Phase Wash Heater Rinse Heater (12 KW) Rinse Heater (14 KW)

300X 208 50 1 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 208 50 3 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 208 60 1 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 208 60 3 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 230 50 1 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 230 50 3 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 230 60 1 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 230 60 3 04540-121-47-39 04540-121-47-40 04540-121-63-38
300X 380 50 3 04540-002-44-31 04540-002-44-32 04540-121-63-38
300X 415 50 3 04540-002-43-09 04540-002-43-10 04540-002-77-24
300X 440 50 3 04540-121-65-99 04540-100-01-15 04540-121-63-39
300X 460 60 3 04540-121-65-99 04540-100-01-15 04540-121-63-39

70

°F Rise

300XN/XLT 208 50 1 04540-121-47-39
300XN/XLT 208 50 3 04540-121-47-39
300XN/XLT 208 60 1 04540-121-47-39
300XN/XLT 208 60 3 04540-121-47-39
300XN/XLT 230 50 1 04540-121-47-39
300XN/XLT 230 50 3 04540-121-47-39
300XN/XLT 230 60 1 04540-121-47-39
300XN/XLT 230 60 3 04540-121-47-39
300XN/XLT 380 50 3 04540-002-44-31
300XN/XLT 415 50 3 04540-002-43-09
300XN/XLT 440 50 3 04540-121-65-99
300XN/XLT 460 60 3 04540-121-65-99

NOTE: THE 300XS is heated via steam coils and therefore has no electrical heaters.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

44

* Previous models used a flat gas­ket. O-ring seal can be replaced
with flat gasket. Flat gasket must be
replaced with flat gasket only.

** Apply red Loc-Tite adhesive to
threads before installation into
volute housing. Tighten using 3/16”
allen wrench.

*4

SECTION 6: PARTS SECTION

WASH PUMP EXPLODED VIEW

12

11

8

6** 7

2

1

Replacement motors are avail­able for purchase. Contact
Jackson directly to ensure that
you order the correct motor for
your model.

10

9

5

3

ITEM QTY DESCRIPTION Mfg. No.

1 2 Pipe Plug, 1/4” NPT, Brass 04730-209-01-00
2 1 Volute (only available as an assembly) N/A
3 1 Impeller, Stainless 05700-002-06-19
4 1 O-ring, Housing Seal N/A
4 1 Flat Gasket 05330-002-00-31
5 1 Pump Seal 05330-002-06-21
6 4 Stud, Socket Head 3/8”-16 x 1 1/2” N/A
7 4 Nut, Hex, 3/8”-16 S/S N/A
8 4 Cap Screw, 3/8”-16 x 1-1/4”, S/S N/A
9 1 Bracket, Motor to Pump N/A
10 1 Slinger, Pump Shaft N/A
11 1 Shaft Adapter/Connector N/A
12 2 Allen Head Setscrew, 1/4”-20 x 1/4” N/A

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

45

SECTION 6: PARTS SECTION

WASH MOTORS

The 300X models covered in this manual come supplied with various wash motor assemblies (a wash motor assembly
includes the wash motor and the pump end), depending on the characteristics of the machine. To ensure that you order the
correct wash motor assembly for the model you are servicing, please refer to the following table:

Model Volts Hz Phase Wash Motor Assembly

300X 208 50 1 06105-002-19-87
300X 208 50 3 06105-002-19-87
300X 208 60 1 06105-121-35-18
300X 208 60 3 06105-121-35-18
300X 230 50 1 06105-002-19-87
300X 230 50 3 06105-002-19-87
300X 230 60 1 06105-121-35-18
300X 230 60 3 06105-121-35-18
300X 380 50 3 06105-002-41-24
300X 415 50 3 06105-002-41-24
300X 440 50 3 06105-002-41-24
300X 460 60 3 06105-121-64-21

300XN 208 50 1 06105-002-19-87
300XN 208 50 3 06105-002-19-87
300XN 208 60 1 06105-121-35-18
300XN 208 60 3 06105-121-35-18
300XN 230 50 1 06105-002-19-87
300XN 230 50 3 06105-002-19-87
300XN 230 60 1 06105-121-35-18
300XN 230 60 3 06105-121-35-18
300XN 380 50 3 06105-002-41-24
300XN 415 50 3 06105-002-41-24
300XN 440 50 3 06105-002-41-24
300XN 460 60 3 06105-121-64-21

Important note: When servicing a wash
motor, it is important to refer to the wiring
schematic found on the motor, to ensure that
the motor is wired correctly. Different manu­facturers of motors may not use the same
wire color codes and therefore, your new
motor, which may have been built by some­one different than who built your original
motor, may not connect using the same wires.
Always refer to the wiring diagrams on the
motor you are installing. If the motor you are
installing has had the schematic removed,
contact Jackson MSC immediately for techni­cal support.

300XLT 208 50 1 06105-002-19-87
300XLT 208 50 3 06105-002-19-87
300XLT 208 60 1 06105-121-35-18
300XLT 208 60 3 06105-121-35-18
300XLT 230 50 1 06105-002-19-87
300XLT 230 50 3 06105-002-19-87
300XLT 230 60 1 06105-121-35-18
300XLT 230 60 3 06105-121-35-18
300XLT 380 50 3 06105-002-41-24
300XLT 415 50 3 06105-002-41-24
300XLT 440 50 3 06105-002-41-24
300XLT 460 60 3 06105-121-64-21

300XS 208 60 1 06105-121-35-18
300XS 230 60 1 06105-121-35-18
300XS 208 60 3 06105-121-35-18
300XS 230 60 3 06105-121-35-18
300XS 380 50 3 06105-002-41-24
300XS 460 60 3 06105-121-64-21

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

46

SECTION 6: PARTS SECTION

INCOMING PLUMBING

9

4

7

6

15

16

15

14

4

10

11

10

13

8

3

4

5

4

2

1

WATER PRESSURE REGULATOR KIT

(WPRK) OPTION

Water Hammer Arrestor, 1/2" NPT
06685-100-05-00

Close Nipple, 1/2”
04730-207-15-00

17

When servicing plumbing components, take care not to damage the threads of each individual item. Damaged threads can
cause leaks and loss of pressure, which could adversely effect the performance of the 300X dishmachine. It is strongly rec­ommended that teflon thread tape, used in conservative amounts, be applied to threads when joining components together. It
is not advised to use thread sealing compounds, sometimes referred to as “pipe dope”. Compounds can be ejected from the
threads during the tightening process and become lodged in key components, thereby rendering them useless. Some of the
components include the solenoid valve and the pressure gauge isolation ball valve.

Tee, 1/2” x 1/2” x 1/2”
04730-211-27-00

12

300X Series Technical Manual 7610-002-64-22

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47

SECTION 6: PARTS SECTION

INCOMING PLUMBING (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 2 Locknut, 1/4"-20 with Nylon Insert 05310-374-01-00
2 1 Bracket, Plumbing Support 05700-002-64-28
3 1 Water Pressure Regulator, 1/2" NPT 04820-100-04-07
4 4 Adapter, 1/2” MNPT x 1/2” FTG 04730-011-59-53
5 1 Tee, Brass, 1/2" NPT x 1/2" NPT x 1/4" NPT 04730-411-25-01
6 1 Valve, Ball, 1/4" NPT 04810-011-72-67
7 1 Gauge, Pressure, 0-100 PSI 06685-111-88-34
8 1 Valve, Solenoid, 1/2" NPT 24V 04810-100-59-00
9 1 Elbow, 1/2" NPT, Brass, Street 04730-206-08-00
10 2 Union, 1/2" NPT, Brass 04730-412-05-01
11 1 Tube, Copper, 1/2" x 38 1/4” Long 05700-002-62-28
12 1 Elbow, 1/2" - 90 B, CU to CU 04730-406-01-01
13 1 Tube, Copper, 1/2" x 1 3/4" Long 05700-002-62-29
14 1 Elbow, 1/2" NPT, 90 B, Brass 04730-011-42-96
15 2 Adapter, 1/2" Male 04730-401-03-01
16 1 Tube, Copper, 1/2" x 3 1/8" Long 05700-002-21-30
17 1 Bushing, Hex 3/4” 04730-002-56-27

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

48

SECTION 6: PARTS SECTION

OUTLET PLUMBING

4

1

2

6

5

3

7

8

10

9

11

12

ITEM QTY DESCRIPTION Mfg. No.

1 1 Vacuum Breaker, 1/2” 04820-003-06-13
2 1 Adapter, 1/2” MNPT x 1/2” FTG 04730-011-59-53
3 1 Union, 1/2" NPT, Brass 04730-412-05-01
4 3 Plug, 1/8” NPT 04730-209-07-37
5 1 Union, 1/4” 05700-001-16-52
6 1 Rinse Injector 05700-002-63-03
7 1 Gasket, Rinse 05330-111-42-81
8 1 Tube, Copper, 1/2" x 32 3/4" Long 05700-002-62-29
9 3 Adapter, 1/2" Male 04730-401-03-01
10 1 Elbow, 1/2" NPT, 90 B, Brass 04730-011-42-96
11 1 Tube, Copper, 1/2" x 2 3/4" Long 05700-002-62-29
12 1 Bushing, Hex 3/4” 04730-002-56-27

300X Series Technical Manual 7610-002-64-22

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49

14

15

16

SECTION 6: PARTS SECTION

300XN & 300XS INCOMING PLUMBING ASSEMBLY

1

3

7

9 10

2

6 11

17

4 3 5 6

6

8

12

13

LITEM QTY DESCRIPTION Mfg. No.

1 1 Vacuum Breaker, 1/2” 04820-003-06-13
2 1 Elbow, 1/2" NPT, Brass, Street 04730-206-08-00
3 2 Adapter, 1/2" Male 04730-401-03-01
4 1 Tube, Copper, 1/2" x 3” Long 05700-001-05-21
5 1 Union, 1/2" NPT, Brass 04730-412-05-01
6 1 Adapter, 1/2” MNPT x 1/2” FTG 04730-011-59-53
7 1 Valve, Solenoid, 1/2" NPT 24V 04810-100-59-00
8 1 Tee, Brass, 1/2" NPT x 1/2" NPT x 1/4" NPT 04730-411-25-01
9 1 Gauge, Pressure, 0-100 PSI 06685-111-88-34
10 1 Valve, Ball, 1/4" NPT 04810-011-72-67
11 1 Water Pressure Regulator, 1/2" NPT 04820-100-04-07
12 2 Locknut, 1/4"-20 with Nylon Insert 05310-374-01-00
13 1 Bracket, Plumbing Support 05700-002-64-28
14 3 Plug, 1/8” NPT 04730-209-07-37
16 1 Union, 1/4” 05700-001-16-52
15 1 Rinse Injector 05700-002-63-03
17 1 Gasket, Rinse 05330-111-42-81

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

50

SECTION 6: PARTS SECTION

RINSE SOLENOID VALVE & VACUUM BREAKER REPAIR PARTS KITS

Screw

Data Plate

Valve Bonnet

Spring position is moved
for clarity.
Goes below the plunger.

Diaphragm

Retainer

Screen

Retainer

Coil & Housing

Spring & Plunger Kit
06401-003-07-40

O-Ring & Diaphragm
06401-003-07-41

Data Plate

Cap Retainer

Components of

Repair Kit

06401-003-06-23

Cap Screw

Cap

O-Ring

Plunger

Body

Mesh Screen

Valve Body

Complete 110 Volt Solenoid Valve Assembly, 1/2”

04810-100-12-18

Coil & Housing only, 1/2”

06401-003-07-43

Complete 220 Volt Solenoid Valve Assembly, 1/2”

04810-100-09-18

Coil & Housing only, 1/2”

06401-003-07-44

Complete Vacuum Breaker Assembly, 1/2” NPT

04820-003-06-13

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

51

SECTION 6: PARTS SECTION

300XS INCOMING STEAM PLUMBING ASSEMBLIES

Union, 3/4’’ NPT, Black Iron

04730-912-01-01

Steam Trap, 3/4” NPT F&T

06680-500-02-77

Nipple, Close, 3/4’’ NPT, Black Iron

04730-907-01-00

To order this complete assembly, use part number:
05700-002-64-95

Elbow, 3/4” Street

04730-011-87-37

To order this complete assembly, use part number:
05700-002-01-55

Bushing, Reducing, 3/4’’ to 1/2’’
04730-911-02-34

Elbow, 3/4” Street
04730-011-87-37

Bushing, Reducing, 3/4’’ to 1/2’’
04730-911-02-34

Union, 3/4’’ NPT, Black Iron
2 per assembly
04730-912-01-00

Bracket, Steam Plumbing Support

Y-Strainer, 3/4” NPT Black Iron

04730-217-01-32

Gate Valve, 3/4” NPT

04820-100-19-00

3/4” NPT Black Iron Pipe

05700-002-20-83

Solenoid Valve, Steam Plumbing, 220V

04820-100-26-34

05700-002-01-63

Elbow, 90B 3/4” NPT Black Iron

04730-906-10-34

Nipple, Close, 3/4’’ NPT, Black Iron

4 per Assembly

04730-907-01-00

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

52

SECTION 6: PARTS SECTION

COIL ASSEMBLY (300XS)

Complete Coil Assembly

05700-002-08-62

Stand B, Coil Support

05700-002-08-51

Stand C, Coil Support

05700-002-08-52

Coil Weldment

05700-021-41-38

Stand D, Coil Support

05700-002-08-53

Stand A, Coil Support

Adapter, Coil Nut

2 per assembly

05700-011-17-85

05700-002-08-50

Gasket, Coil

4 per assembly

05700-001-17-86

Washer, Coil

2 per assembly

05700-001-17-87

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

53

10

10

18

SECTION 6: PARTS SECTION

WASH & RINSE ARM/MANIFOLD ASSEMBLIES

11

13

16

12

14

15

10

1

9, 17

10

15

DETAIL “A”

FINAL RINSE ARMS & MANIFOLD

2, 3, 4

Rinse Injector Weldment

1 per machine

05700-002-63-03

Plug, 1/8” NPT, Brass

3 per Rinse Injector

04730-209-07-37

Rinse Injector Gasket

2 per machine

05330-111-42-81

5

6, 10

21, 8

2, 3, 19

7

9

5

17

21

DETAIL “B”

WASH ARMS & MANIFOLD

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

54

SECTION 6: PARTS SECTION

WASH & RINSE ARM/MANIFOLD ASSEMBLIES (CONTINUED)

ITEM QTY DESCRIPTION Mfg. No.

1 1 Upper Manifold 05700-031-34-82
2 4 Nut, 3/8"-16 S/S Hex 05310-276-01-00
3 4 Lockwasher 3/8” 05311-276-01-00
4 4 Bolt, Hex 3/8”-16 x 7/8" Long 05306-011-36-95
5 2 O Ring 05330-111-35-15
6 1 Positioning Bracket, Manifold Tube 05700-011-34-63
7 1 Tube, Wash Manifold 05700-131-15-07
8 2 Gasket, Manifold 05700-111-35-03
9 2 Wash Arm 05700-021-35-93
10 5 Locknut, 1/4"-20 S/S Hex with Nylon Insert 05310-374-01-00
* 2 Rinse Arm Assembly 05700-002-58-09
11 1 Clip, Retaining, Rinse Head Bushing 05340-112-01-11
12 2 Rinse Arm Washer 05330-011-42-10
13 1 Bushing, Rinse Head 05700-021-33-84
14 1 Rinse Arm 05700-031-49-58
15 2 Plug, Rinse Arm, S/S 04730-609-04-00
16 1 Bearing, Rinse 03120-002-72-24
17 2 Bearing Assembly 05700-021-35-97
17a 1 Hub Nut 05700-011-35-94
17b 1 Hub Bushing 05700-011-35-96
17c 1 Hub Spindle 05700-011-35-95
17d 1 Ring, Retainer 05340-011-37-81
17e 15 3/16" Stainless Steel Ball 03120-100-02-00
17f 20 1/8" Stainless Steel Ball 03120-011-37-82
18 1 Rinse Manifold Weldment 05700-021-47-61
19 2 Bolt, Hex 3/8”-16 x 1 1/4" Long 05305-276-10-00
20* 2 O-Ring 05330-002-60-69
21 1 Lower Wash Manifold 05700-031-46-00

17c

17a

17b

17d

1 or 21

9

EXPLODED VIEW OF

ITEM 17

17f

17e

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

55

SECTION 6: PARTS SECTION

SAFETY DOOR INTERLOCK (SDI) OPTION

Safety Door Interlock Box Bottom

05700-001-21-26

Other Safety Door Interlock (SDI) components (not shown):
Pipe Clamp (found on the side of the machine) 05700-000-35-05

Solenoid, Electrical Interlock Option 04810-100-61-33
Relay 05945-111-47-51

Safety Door Interlock Box Cover

05700-001-21-27

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

56

SECTION 6: PARTS SECTION

EXHAUST FAN CONTROL OPTION

2” Din Rail

05700-002-36-09

Delay Timer

05945-011-65-44

Terminal Board

05940-011-84-41

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

57

FALSE PANEL INSTALLATION

SECTION 6: PARTS SECTION

Left & Front False Panel

Weldment

05700-002-75-52

Right False Panel Weldment

(Use with Overflow Tube Lifter)

05700-002-98-85

Left & Front False Panel Kit

05700-002-75-59

Right False Panel Kit

(Use with Overflow Tube Lifter)

05700-002-98-96

Rack rail removed & reposi­tioned for a corner operation.

Insert this
side first.

False panel positioned in unit.

1. Loosen the rack assembly from the unit.

2. False panel will mount to the rack; inside the dishmachine.

3. Position panel in unit on side to be closed.

4. Hold panel against side of dishmachine and push up.

5. Panel will clip inside the unit under the edge of the hood.

6. Holes in false panel willl ine up with rack assembly holes.

7. Re-install screws for rack assembly which will secure false panel
to unit.

8. Re-assemble the rack track in an “L” shape for a corner opera­tion.

Bottom of side panel.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

58

Elbow, 1-1/2” 90 B Street

04730-206-32-00

Nipple, 1-1/2” NPT

04730-207-40-00

Modified Compression

Fitting

05700-001-16-52

SECTION 6: PARTS SECTION

DRAIN QUENCH ASSEMBLY

Drain Quench

Assembly

06401-002-59-52

Lid, Drain Quench
05700-002-67-16

Thermostat
05930-003-13-65

Solenoid Valve

Reducer, 1-1/2” x 1/4”

04810-100-09-18

04730-002-55-76

To Dishmachine Drain

To Cold Water Supply

Tee, 1-1/2” x 1-1/2” x 1-1/2”

04730-011-69-93

Reducer, 1-1/2” to 1/2”
04730-002-55-75

Valve, Check, 1/2”
(Not Shown)
04820-002-55-77

Nipple, Close, 1/2” NPT
(Not Shown)

Box, Drain Quench
05700-002-69-96

04730-207-15-00

From the existing drain, attach the two additional Tees using the 1-1/2” NPT Close Nipples. Tighten the Reducers into the Tees
as shown above. Attach the Modified Compression Fitting into the 1-1/2” to 1/4” Reducer. Position the bulb of the thermostat
so that it rests approximately 1/4” from the bottom of the Tee. Tighten the Modified Compression Fitting as required. Attach to
the incoming cold water line. Use pipe dope or thread tape as required to prevent any leaks.

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

59

SECTION 7:

ELECTRICAL SCHEMATICS

60

SECTION 7: ELECTRICAL SCHEMATICS

300X/300XN/300XLT 208-230 VOLT - 50/60 HERTZ - SINGLE & THREE PHASE

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

61

SECTION 7: ELECTRICAL SCHEMATICS

300X/300XN/300XLT 380-440-460 VOLT - 50/60 HERTZ - THREE PHASE

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

62

SECTION 7: ELECTRICAL SCHEMATICS

300X/300XN/300XLT 415 VOLT - 50/60 HERTZ - THREE PHASE

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

63

SECTION 7: ELECTRICAL SCHEMATICS

300X/300XN/300XLT 208-230-380-460 VOLT - 50/60 HERTZ - SINGLE & THREE PHASE

300X Series Technical Manual 7610-002-64-22

Issued: 07-26-2006 Revised: N/A

64