MONTAGUE DG Series User manual

28
INSTRUCTION MANUAL
Gas Fired Deluxe Griddles
MODELS:
All "DG" Series Griddles
These instructions should be read thoroughly before attempting installation.
Set up and installation should be performed by qualified installation personnel.
Keep area around appliances free and clear from combustibles.
PLEASE RETAINTHIS MANUAL
FOR FUTURE REFERENCE.
THE MONTAGUE COMPANY
1830STEARMANAVENUE,P.O.BOX4954
HAYWARD,CA 94540-4954
TEL:[phone] FAX:[phone]
MONTAGUE

29
IMPORTANT
INSTRUCTIONSTOBE FOLLOWEDINTHEEVENTTHEUSER SMELLSGASMUSTBE POSTED
INAPROMINENTLOCATION.THISINFORMATIONMAYBEOBTAINEDBYCONSULTING
THELOCALGASSUPPLIER.
SHIPPING DAMAGE CLAIM PROCEDURE
Foryour protection, please note thatequipment in this shipment wascarefully inspected and packed byskilled
personnelbefore leaving the factory.The transportation company assumed full responsibility for safe delivery
upon acceptance of this shipment.
If shipment arrives damaged:
1. VISIBLE LOSS OR DAMAGE - Be certain this is noted on freight bill or express receipt, and signed by
person making delivery.
2. FILE CLAIM FOR DAMAGES IMMEDIATLY - Regardless of the extent of damage.
3. CONCEALED LOSS OR DAMAGE - If damage is unnoticed until merchandise is unpacked, notify
transportation company or carrier immediately, and file "concealed damage" claim with them. This should be
done within fifteen (15) days of date that delivery was made to you. Be sure to retain container for inspection.
We cannot assume responsibility for damage incurred in transit. We will, however, be glad to furnish
you with necessary documents to support your claim.
FOR YOUR SAFETY:
Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
WARNING:
Improper installation, adjustment,
alteration, service or maintenance
can cause property damage, injury
or death. Read the operating and
maintenance instructions
thoroughly before installing or
servicing this equipment.

1
INSTALLATION
Montague gas griddles are manufactured for use with the type of gas indicated on the
nameplate.
The Montague heavy duty gas griddles are produced with the best possible material and
workmanship. PROPER INSTALLATION IS ESSENTIAL FOR SAFE AND EFFICIENT
TROUBLE-FREE OPERATION.
THE INSTALLATION INSTRUCTIONS CONTAINED HEREIN ARE FOR THE USE OF
QUALIFIED INSTALLATION AND SERVICE PERSONNEL ONLY. INSTALLATION OR
SERVICE BY OTHER THAN QUALIFIED PERSONNEL MAY RESULT IN DAMAGE TO THE
UNIT AND/OR INJURY TO THE OPERATOR.
Qualified installation personnel are individuals, a firm, corporation or company which either in
person or through a representative are engaged in, and are responsible for:
The installation or replacement of gas piping or the connection, installation, repair or
servicing of equipment, who is experienced in such work, familiar with all precautions
required, and has complied with all requirements of state or local authorities having
jurisdiction. Reference: National Fuel Gas Code Z223.1
READ CAREFULLY AND FOLLOW THESE INSTRUCTIONS
THE GRIDDLE(S) MUST BE INSTALLED IN ACCORDANCE WITH LOCAL
CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL
FUEL GAS CODE, ANSI Z223.1, NATURAL GAS INSTALLATION CODE, CAN/CGA-B149.1,
OR THE PROPANE INSTALLATION CODE, CAN/CGA-B149.2, AS APPLICABLE
INCLUDING:
1. The appliance and its individual shutoff valve must be disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of
1/2 psig. (3.45 kPa).
2. The appliance must be isolated from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the gas supply piping system at test
pressure equal to or less than 1/2 psig. (3.45 kPa).
PROVISIONS MUST BE MADE FOR ADEQUATE AIR SUPPLY TO THE UNIT(S).
WARNING - ELECTRICAL GROUNDING INSTRUCTIONS
This appliance is equipped with a three-prong (grounding) plug for your protection against
shock hazard and should be plugged directly into a properly grounded three-prong
receptacle. Do not cut or remove the grounding prong from this plug.

2
INSTALLATION
THISAPPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLYGROUNDED INACCORDANCE
WITH LOCAL CODES, OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL
ELECTRICAL CODE, ANSI/NFPANo. 70 OR THE CANADIAN ELECTRICALCODE, CSA C22.2.
VENTILATING HOOD
The griddle(s) must be installed under a properly designed ventilation hood.
The hood should extend at least 6" beyond all sides of the unit. The hood should be
connected to an adequate mechanical exhaust system.
Information on the construction and installation of ventilating hoods may be obtained from the
“Standard for the Installation of Equipment for the Removal of Smoke and Grease Laden Vapors
from Commercial Cooking Equipment”, NFPA No. 96-1987, available from the National Fire
Protection Association, Batterymarch Park, Quincy, MA 02269.
It is also necessary that sufficient room air ingress be allowed to compensate for the amount of
air removed by the ventilation system. Otherwise, a subnormal atmospheric pressure will
occur which may interfere with burner performance or may extinguish the pilot flame. In case
of unsatisfactory unit performance, re-check performance with the exhaust fan in the “OFF”
position.
CLEARANCES
Adequate clearance must be provided in aisle and at the side and back to allow
for serviceability. Adequate clearance for air openings into the combustion chamber
must be provided.
CLEARANCES
COMBUSTIBLE NONCOMBUSTIBLE
CONSTRUCTION CONSTRUCTION
BACK 3" 0"
LEFT & RIGHT SIDE 2" 0"
WITH 24" LEGS: SUITABLE FOR INSTALLATION ON COMBUSTIBLE
FLOORS. WITH 4" LEGS OR WITH CUSTOM BASE: FOR USE ONLY ON
NONCOMBUSTIBLE COUNTERS.
CAUTION
DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR TO
THE UNIT. KEEP THE APPLIANCE AREA FREE AND CLEAR FROM
COMBUSTIBLES.

3
INSTALLATION
ASSEMBLY
Uncrate griddle as near to final location as possible. Remove all shipping straps,
wrapping, cardboard, or upper crating. Leave the bottom wood pallet. Use a fork lift or an
equipment hoist to raise the bottom pallet and the griddle off the floor. Loosen the two Allen
screws in each leg socket. For counter models, install the supplied 4-inch legs into the leg
socket and tighten the Allen screws. Place the griddle on the counter or equipment stand
where it will be used. For models supplied with an equipment stand, raise the four legs and
lower shelf assembly into the leg sockets and tighten the Allen screws. Lower the griddle
and stand into place where it will be used. Remove and discard the wood pallet when
completed.
WIRING DIAGRAM
The wiring diagram is located on the rear of the griddle. If it cannot be found please
call your local Montague Servicer or Montague Dealer.
SETTING IN PLACE
Using an accurate carpenter’s level, level the griddle front to back and side to side
using the adjustable foot at the bottom of the legs. Turn the bottom of the foot counter-clock-
wise with a wrench to lengthen the leg. If casters are added to an equipment stand there is
not adjustment to level the griddle. If floors are uneven, shim plates may be required for
proper operation of the griddle.
ADJUSTING THE GRIDDLE PLATE
For proper operation of the griddle and adequate grease runoff, it is imperative that
the griddle plate be pitched towards the front. An improperly pitched plate may result in
unwanted grease build-up, excessive guard rail and control panel temperatures, pilot out-
ages, and pre-mature failure of the griddle control components and burners.
Plate leveling bolts are located beneath the rear of the griddle plate. To access these
bolts, remove the back and top screws that hold the flue extension in place and lift the
extension off. Place an accurate carpenter’s level in the center of the plate. Turn the level-
ing bolts equally counter-clockwise with a wrench until the rear of the plate is raised suffi-
ciently to “crack” the bubble (see Figure below). This will result in approximately a 1/8-inch
forward pitch of the plate. Replace and fasten the flue extension.
Illustrating a “cracked” bubble on a carpenter’s level.

4
INSTALLATION
GAS APPLIANCE REGULATOR
The gas regulator supplied with the griddle must be installed on the manifold inlet at
the back of the unit and adjusted for the manifold pressure specified on the equipment
nameplate. Unless otherwise specified, a manifold pressure of 6.0 inches of water column
for natural gas and 10.0 inches of water column for propane gas is appropriate.
GAS CONNECTION
Before connecting the griddle to the gas supply line, be sure that all new piping has
been cleaned and purged to prevent any foreign matter from being carried into the controls by
the gas. In some cases, filters or drops are recommended. A separate Gas Shut-Off Valve
must be installed upstream from the gas pressure regulator adjacent to the griddle and located
in an accessible area.
WARNING: CAP ALL UNUSED OPEN ENDS OF THE GAS SUPPLY MANIFOLD.
It is important that adequately sized piping be run directly to the point of connection at
the griddle with as few elbows and tees as possible. Consult local gas company for proper
piping size and gas pressure.
PIPE JOINT COMPOUND OR THREAD SEALANT THAT IS USED SHOULD BE
RESISTANT TO ACTION OF LIQUEFIED PETROLEUM GASES.
Turn Gas Shut Off Valve "ON" and immediately check carefully for gas leaks. Do this
before attempting to operate the griddle.
TEST ALL PIPE JOINTS FOR LEAKS BEFORE OPERATING THIS INCLUDES
ALL GAS CONNECTIONS THAT MAY HAVE LOOSENED DURING SHIPMENT.
USE A RICH SOAP SOLUTION (OR OTHER ACCEPTED LEAK TESTER)
AROUND ALL PIPE CONNECTIONS AND ALL OTHER JOINTS. DO NOT USE
AN OPEN FLAME. ABSOLUTELY NO LEAKAGE SHOULD OCCUR, OTHERWISE
THERE IS A DANGER OF FIRE OR EXPLOSION DEPENDING UPON
CONDITIONS. NEVER USE IF LEAKAGE IS DETECTED.

5
INSTALLATION
PILOT ADJUSTMENT
Pilots on all griddles, except those models with suffix “-MFF”, are controlled by fixed
orifices and are not adjustable. If the “-2,4OB” model option for open burners is included,
then these pilots are adjustable. The front and rear pilots are controlled by one valve. To
adjust the pilots, turn the adjusting screw counter-clockwise to increase or clockwise to
decrease the pilot flame. Adjust the flame to a point where only a trace of yellow tip re-
mains.
Models with suffix “-MFF”, both griddle and open burner pilots are controlled by fixed
injectors and cannot be adjusted.
BURNER ADJUSTMENT
The efficiency of the griddle depends on a delicate balance between the supply of air
and volume of gas so that complete combustion is achieved. Whenever this balance is
disturbed, poor operating characteristics occur.
The air supply is controlled by an air shutter on the front of the burner. The air shutter
openings should be increased until the flame on the burner begins to "lift." The air shutter
should then be closed slightly and locked in place. A yellow streaming flame indicated
insufficient air. This condition can be corrected by increasing the air shutter opening.
THERMOSTAT ADJUSTMENT
The griddle thermostats are calibrated at the factory and need no additional adjust-
ment if the gas manifold pressure is correct. If transit or local conditions have affected the
calibration, then refer to the service section of this manual for proper procedures for re-
calibration.

6
OPERATION
OPERATING INFORMATION FOR THE GRIDDLE HAS BEEN PREPARED FOR
USE BY QUALIFIED AND/OR PROFESSIONAL OPERATING PERSONNEL.
CAUTION
DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR
TO THE GRIDDLE. KEEP THE APPLIANCE AREA FREE AND CLEAR
FROM COMBUSTIBLES.
GAS CONTROLS
IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNITS AT MAIN
SHUT OFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS
SUPPLIER FOR SERVICE.
MODELS WITH SUFFIX “-M & -T”
These models contain standing automatic pilots without pilot safety valves.
To light the griddle pilots, first make certain all burner manual valves or thermostat dials are
rotated full clockwise to the “OFF” position. Open the gas supply shut-off valve. Immediately
push the piezo igniter button repeatedly until the pilot flame is visible through the pilot
viewing slot in the upper control panel. Repeat procedure for all pilots. If these models
contain the “ –(2,4)OB” open burner option, follow the same procedure above, then light
each pilot with a match or taper by accessing through the top grate openings.
To operate the griddle or open burners with manual valves (model suffix “-M”), first
check that the pilot(s) are burning. Then rotate the burner valve handle counter-clockwise to
full “ON” to ignite the burner. Adjust the flame height to obtain the desired heat. To shut
down, rotate the valve handle clockwise to the “OFF” position.
To operate the griddle on models with modulating thermostat controls (model suffix
“-T”), first check that the pilot(s) are burning. Then push the thermostat dial inward and
rotate dial counter-clockwise fully to ignite the burner. After ignition, turn the thermostat dial
to the desired setting. To shut down, rotate the thermostat dial clockwise to the “OFF” posi-
tion.

7
OPERATION
MODELS WITH SUFFIX “-SAT, SST, MST, & -TSF”
These models contain standing automatic pilots with 100% pilot safety valves that
automatically shut off the gas supply if the griddle pilot goes out. To light the griddle pilots,
first make certain all burner manual valves or thermostat dials are rotated fully clockwise to
the “OFF” position. If the model contains a main power switch it should be turned off.
Loosen the two screws in the lower control panel sufficiently to remove the upper control
panel by lifting up and then outward. Open the gas supply shut-off valve. Locate the red
button on the pilot safety valve and hold the button in. Repeatedly push the appropriate
piezo igniter button until the pilot is visible through the pilot-viewing slot. Continue to hold
the button down for approximately 30 seconds or until the pilot remains burning after the
button is released. If the pilot goes out, repeat process. Continue procedure until all pilots
are burning. Replace the upper control panel and tighten the screws in the lower panel.
This procedure does not need to be repeated unless the pilot flame is extinguished.
On models containing the “-(2,4)OB” open burner option, these pilots are lit from
above by accessing through the grate openings. First make certain the burner valves are
rotated full clockwise to the “OFF” position. Open the gas shut-off valve. Light the pilots for
each burner with a match or taper.
To operate the griddle/open burners with manual valves (model suffix “-MST”), first
check that the pilot(s) are burning. Then rotate the burner valve handle counter-clockwise to
full “ON” to ignite the burner. Adjust the flame height to obtain the desired heat. To shut
down, rotate the valve handle clockwise to the “OFF” position.
To operate the griddle on models with modulating thermostat controls (model suffix
“-TSF”), first check that the pilot(s) are burning. Then push the thermostat dial inward and
rotate dial counter-clockwise fully to ignite the burner. After ignition, turn the thermostat dial
to the desired setting. To shut down, rotate the thermostat dial clockwise to the “OFF” posi-
tion.
To operate a griddle with snap-action thermostats (model suffix “-SAT”), first check
that the pilots are burning and the main power switch is “ON” (red indicator light is on). Turn
the desired burner thermostat dial(s) clockwise to the set temperature. The amber burner
indicator light next to the dial will come on and remain on until the selected temperature is
reached and the burner turns off. During operation the burner indicator light will cycle on
and off with the burner as the thermostat maintains the set temperature. To turn off the
burner, rotate the thermostat dial counter-clockwise to “OFF”. To turn off the griddle, turn the
main power switch to “OFF”.
To operate a griddle with solid-state thermostats (model suffix “-SST”), first check
that the pilots are burning and the main power switch is “ON”. Turn on the burner thermostat
switch (press the “I” marking) next to the thermostat dial. The amber burner indicator light
will come on with the burner. Set the dial to the desired set temperature. The burner indica-
tor light will go out when the set temperature is reached, and will cycle on and off during
operation as the thermostat maintains the set temperature. To turn off the burner, rotate the
thermostat dial clockwise until it stops, AND TURN OFF THE BURNER THERMOSTAT
SWITCH (press the “O” marking). To turn off the griddle, turn the main power switch to
“OFF”.

8
OPERATION
SUFFIX “-(PR)” PILOT RE-LIGHT OPTION
On griddles with the “-(PR)” Pilot Re-light Option, an electronic spark module auto-
matically lights the pilot. To light the griddle pilots, follow the procedure above up until the
point where you would push the piezo igniter button. Instead, simply turn the main power
switch on (the “I” position with the red indicator light on). The spark module will continuously
spark until the pilot is burning. Continue with the procedure above until all pilots are burn-
ing. The spark module will continue to spark until the all pilots are burning, which may be
distracting but does not harm the griddle in any way. If any pilot is extinguished for any
reason, the spark module will automatically re-light it without loss of service of the griddle as
long as the main power switch is on. If the main power is turned off the pilots will continue to
burn, but if extinguished they will not re-light automatically, but instead the safety will shut off
the gas supply after 30 to 45 seconds.
Operation of the griddle with or without this option is the same.
SUFFIX “-(EI)” ELECTRONIC IGNITION OPTION
On griddles with the “-(EI)” Electronic Ignition Option, an electronic spark lights each
pilot, and then supplies gas to whichever burner is being called on by the thermostat. To
light the griddle pilots, make certain the griddle thermostats are rotated full clockwise to the
“OFF” position and the main power switch is turned off. Open the gas supply shut-off valve
and turn the main power switch on (the “I” position with the red indicator light). The elec-
tronic ignition module will spark continuously until all pilots are burning, and will maintain
them on until the main power switch is turned off (the “O” position) at the completion of the
use of the griddle. If the pilot fails to ignite within 50 seconds, a complete shut down ( lock-
out ) of the ignition system will occur. To initiate re-ignition turn the main power switch
“OFF”, wait at least 30 seconds, and then turn the main power switch back “ON”. If three
successive shut downs occur, check the entire system for possible causes.
Operation of a griddle with or without this option is the same.
MODELS WITH SUFFIX “-MFF”
These models are equipped with manual flame-failure valves. Each valve has an
independent supply line to the pilot and the burner, and contains a thermocouple that
senses when the pilot is burning. This valve will not supply gas to the burner unless the
pilot is burning and will cut-off supply if the pilot is extinguished during operation.
To operate griddles with suffix “-MFF”, first make certain the main gas shut-off valve is
turned on. Push in the burner valve and turn it counter-clockwise to the ignition/pilot posi-
tion (“spark” symbol). Hold the valve fully in while repeatedly pushing the piezo igniter
button until the pilot is burning. Continue holding the valve in for approximately 20 second
or until the flame stays on when released. If the pilot goes out, wait five (5) minutes and
repeat the procedure.
With the pilot burning, push the valve in and turn counter-clockwise fully (to the
“flame” symbol) to ignite the burner, then adjust it back clockwise to obtain your desired
grilling temperature. If the griddle will be out of service for a short period, turn the valve
clockwise back to the ignition/pilot position and the burner will be off, but the pilot will re-
main burning. To shut the burner off, turn the valve handle fully clockwise to off (the “circle”
symbol).
On models containing the “-(2,4)OB open burner option, follow the procedures above,
except light the burner pilot with a match or taper by accessing through the openings in the
top grate. Adjust the heat of the open burner by adjusting the height of the flame as de-
scribed above. To shut the burner off, turn the valve handle fully clockwise to the off posi-
tion.

9
MAINTENANCE
CARE AND CLEANING
CAUTION: TURN OFF GAS SUPPLY WHEN SERVICING GAS CONTROL
SYSTEM. ALWAYS DISCONNECT POWER FROM GRIDDLE BEFORE
REMOVING EITHER CONTROL PANEL FOR SERVICE OR CLEANING.
The complete griddle should be given a periodic general cleaning. Lint and grease
suspended in the air tend to collect in passages. Therefore, all flueways, air passages and
openings, burner ports, primary air openings, etc. should be periodically cleaned to prevent
clogging.
Griddle tops are designed to have food cooked directly on the surface. Do not put
pots or pans on the griddle surface. This will scratch or nick the surface and result in im-
proper cooking or sticking of product. Never salt food over a griddle since this will build up a
gummy residue making it difficult to clean.
Avoid hitting the surface of the griddle with the edge of a spatula since this will cause
nicks. The most frequently used temperatures are 300°Fto 350°F. After one firing, the
griddle plate will discolor. This is normal and will not affect cooking performance.
Check the grease container and drain frequently during heavy use to prevent overflow.
The open burners are designed for flexibility and the preparation of numerous types
of products. An operation that cooks to order or uses the equipment for back-up may find
open type burners most suited to their needs.
NOTE: Many parts of the equipment are raw steel, i.e., griddle top, top grate, solid hot tops
etc. and can react with moisture forming rust. This is normal and not considered a defect.
Clean with a stainless steel or fiber pad. A light coating of salt free oil may be applied to
prevent further rusting.
EXTERIOR
PAINTED SURFACE: Allow equipment to cool after use and wash with a mild deter-
gent or soap solution. Dry thoroughly with a dry cloth.
STAINLESS STEEL SURFACE: To remove dirt, grease, or product residue, from
stainless steel use ordinary soap and water (with or without detergent) applied with a
sponge or cloth. Dry thoroughly with a clean cloth.
To remove grease and food splatter, or condensed vapors, that have baked on the
equipment apply cleanser to a damp cloth or sponge and rub cleanser on the metal in the
direction of the polishing lines on the metal. Rubbing cleanser as gently ass possible in the
direction of the polished lines will not mar the finish of the stainless steel. NEVER RUB
WITH A CIRCULAR MOTION. Soil and burnt deposits which do not respond to the above
procedure can usually be removed by rubbing the surface with SCOTH-BRITE scouring
pads or STAINLESS scouring pads. DO NOT USE ORDINARY STEEL WOOL as any
particles left on the surface will rust and further spoil the appearance of the finish. NEVER
USE A WIRE BURSH, STEEL SCOURING PADS (EXCEPT STAINLESS), SCAPER, FILE
OR OTHER STEEL TOOLS. Surfaces which are marred collect dirt more rapidly and be-
come more difficult to clean. Marring also increases the possibility of corrosive attack.

10
MAINTENANCE
To remove heat tint: Darkened areas sometimes appear on stainless steel surfaces
where the area has been subjected to excessive heat. These darkened areas are caused
by thickening of the protective surface of the stainless steel and are not harmful. Heat tint
can normally be removed by the foregoing, but tint which does not respond to this procedure
calls for a vigorous scouring in the direction of the polish lines, using SCOTCH-BRITE
scouring pads or a STAINLESS scouring pad in combination with a powdered cleanser.
Heat tint action may be lessened by not applying or by reducing heat to equipment during
periods.
MAINTENANCE
GRIDDLE SEASONING
1. Remove all factory applied protective material by washing with hot water, mild detergent
or soap solution.
2. Apply a thin coat of hydrogenated shortening to the griddle surface, about one ounce per
square food of griddle surface. Spread over the entire griddle surface with a cloth to create
a thin film. Wipe off any excess with a cloth.
3. Heat the griddle slowly for 15 to 20 minutes, then wipe away shortening. Repeat the
procedure 2 to 3 times until the griddle has a slick, mirror like finish. Do this until you have
reached the desired cooking temperature.
IMPORTANT: Do not attain a high griddle temperature (450°F/232°C) during the "break-in"
period.
NOTE: Steel griddle surface will tone (blue discoloration) from heat. This toning will not
diminish function or operation and is not a defect.
CLEANING SCHEDULE
OPEN TOP SECTION
DAILY: After grates and burner bowls are cooled, soak in solution of sal soda or other
grease solvent. Thoroughly wash open top section with a damp cloth using a mild detergent
soap. Rinse with clean, damp cloth and dry thoroughly. Remove and clean drip pan(s)
under burners.
WEEKLY: Brush burner head with a stiff wire brush and clean clogged ports with a stiff wire
or ice pick.
GRIDDLE SECTION
DAILY: Use flat edge of spatula or metal scraper to keep surface free of encrusted material
during use, wipe frequently with heavy absorbent cloth. After griddle is cooled, polish with
soft griddle stone or a good grade grill pad. DO NOT SCRATCH. The griddle may be
washed with warm water and a cleanser. Water will not crack this griddle plate.
Empty grease container as often as necessary.
To oil the griddle, use a hydrogenated shortening. Never use salad oils, margarine or butter,
as these shortenings cannot withstand temperatures greater than 300 degrees fahrenheit.

11
SERVICE
WHEN SERVICE IS NEEDED, CONTACT A LOCAL SERVICE COMPANY,
DEALER, OR FACTORY TO PERFORM MECHANICAL MAINTENANCE REPAIRS.
THESE INSTRUCTIONS ARE INTENDED FOR USE BY COMPETENT SERVICE PERSONNEL.
CAUTION: TURN OFF GAS SUPPLY WHEN SERVICING GAS CONTROL SYSTEM.
ALWAYS DISCONNECT POWER FROM GRIDDLE BEFORE REMOVING EITHER
CONTROL PANEL FOR SERVICE.
COMPONENT ACCESS
Removal of several equipment panels will provide easy access for performing adjust-
ments and service to the Montague Deluxe Griddle. Always make certain that the gas
supply shut-off valve is closed and the power cord or electrical connection is disconnected
before removing access panels.
UPPER CONTROL PANAL: To remove this panel, loosen the two screws that hold the
lower control panel in place, and lift the upper panel up and outward. Place the panel in a
location where it will not be damaged. Removing this panel is convenient when lighting the
pilots or diagnosing a malfunctioning component.
LOWER CONTROL PANEL: To open the lower control panel, remove the two screws on
either side and allow the panel to drop down against its hinges. It is normally not necessary
to completely remove this panel.
This will allow access to the thermostats, switches, indicator lights, and piezo igniters
located in the panal; and the pressure tap, safety valves, thermocouples, manual valves,
solenoid valves, pilot re-light module, electronic ignition module, and solid-state thermostat
controllers located in the control compartment.
UPPER HEAT SHIELD: At the top of the control compartment bulkhead is a removable
heat shield covered with a white insulation matte. Remove the two screws on either side of
this panel and remove it by rotating the top outward and placing it in a location where it will
not be damaged.
This will allow access to the burner pilots, thermocouples, spark electrodes, main
burners, and griddle plate temperature sensors.
CONTROL PANEL COMPONENTS
The switches, indicator lights, and piezo igniter can be replaced by disconecting
electrically and then removing the component out the front of the panel. Replacement
components are either snapped into place or are held by a locking nut. Re-connect the
componencts electrically making certain they are adequately protected from grounding.

12
SERVICE
MODULATING THERMOSTAT (MODEL SUFFIX “-T & -TSF”)
The Model BJ Robertshaw is a combination thermostat and gas valve. The gas is
turned on and the temperature setting made by a single rotation of the dial. This valve
automatically locks itself in the OFF position. To use, push dial inward, rotate counter-
clockwise to the desired temperature. To shut gas off, rotate clockwise to OFF position.
This thermostat is a precision instrument carefully made and properly calibrated (i.e.
the dial is properly set) at the factory to control temperatures accurately. It should control
temperatures for the proper cooking of food without recalibration. The calibration of this
thermostat should not be changed until considerable experience with cooking results has
definitely proved that the thermostat is not maintaining the proper temperature.
CAUTION: THE RECALIBRATION SHOULD NOT BE MADE UNTIL THE
BYPASS (MINIMUM BURNER) FLAME HAS BEEN PROPERLY ADJUSTED.
THERMOSTAT INSTALLATION
With the upper heat shield and both control panels removed, slide the thermostat
bulb assembly into the support brackets and the slot in the underside of the plate. Tighten
the two holding screws. The excess capillary tube should be pulled forward and down as
low as possible out of the heat zone, so that there is no chance of it coming in contact with
the burner flame. Push the sleeving up against the bulb holder. A loose fit between the bulb
holder and plate may damage the thermostat so that it will not control the temperature of the
griddle plate.
Mount the thermostat body to the manifold mounting flange with the two slotted hex
screws located in the body. Make certain the o-ring gasket is in position and undamaged.
Replace the heat shield and both control panels. Insert the dial on the thermostat stem.

13
SERVICE
ADJUSTMENT OF BYPASS (MINIMUM BURNER) FLAME
Thisis theflame whichmust bemaintained ontheburnerswhenthegriddlehas
reachedthetemperaturesetonthedial. Enough gasmust bebypassed bythe controlto keep
theentire burnerlit. The thermostatregulatestheflamefromhighto lowin accordancewiththe
griddletemperature andwillautomaticallyturndownto thisbypass flamewhenthetempera-
tureseton thedial isattained.
Specialcareshould betakento seethatthe thermostatbulbis initsproper placeand
nopartofthecapillarytubeisinanyflameorheatzone. Thegriddleplateshouldneverbe
removedwithout firstremovingthethermostatbulb(s) frombeneaththeplate. Neverallow
capillarytubetobekinked orcrushed.
1. Fry Top plate
2. Shield
3. Screw,holding
4. Bracket; support
5. Insulatedblock
6. Backingplate
7. Sleeving
Thermostat sensing bulb holder assembly.

14
SERVICE
THE BYPASS MUST BE SET CAREFULLY AND ACCURATELY AS FOLLOWS:
1. Light burners and turn Dial (A) counter-clockwise and to a point midway between the
"Gas On" mark and the next graduation to the right of it (shown by "X"). If the burner
goes out entirely, the bypass is closed.
2. Slip off Dial (A). Remove the valve panel from the front of the range.
3. With a screwdriver turn bypass adjustor (B). Turning it out counterclockwise increases
the bypass flame; turning it in clockwise decreases the bypass flame. Adjust until there
is a flame approximately 1/8" high over the entire burner.
4. Replace dial, rotating dial clockwise until it snaps into its original position.
5. Reinstall the control panel.
GRIDDLE THERMOSTAT CALIBRATION CHECK:
The griddle temperature should be checked or recalibrated with griddle hot. NOTE:
See "Adjustment of Bypass (Minimum burner) Flame" before recalibrating this thermostat.
HOT CHECK METHOD:
1. Place reliable thermometer in center of the top of the griddle plate over the thermal bulb.
2. Set Dial (A) to 350°F
3. Wait until temperature rises and remains constant.
4. If dial does not agree with thermometer readings, slip off Dial (A) and push out metal insert.
5. Replace dial, turn to 350°Fmark.
6. Hold dial firmly, insert screwdriver through center of dial and push calibration stem
(C) inward. DO NOT TURN THIS STEM.
7. While holding calibration stem (C) in, firmly with screwdriver, turn dial until it is set at
the actual griddle temperature as shown by the thermometer. Release pressure on
calibration stem. Replace dial insert.

15
SERVICE
SNAP-ACTION THERMOSTAT (MODEL SUFFIX “-SAT”)
The Robertshaw KX is a 120V snap-acting single pole thermostat. Its rugged compact
design, silver contacts and heavy duty terminals are responsible for its dependable performance
record.
CALIBRATION CHECK:
1. Place a reliable thermometer in the center of the top of the griddle plate over the thermal
bulb.
2. Set the dial to 350°F.
3. The amber burner indicating light will switch from "ON" to "OFF" when the thermostat turns
off the burner.
4. Allow three (3) such cycles for the temperature to stabilize.
5. Read the pyrometer or thermometer immediately after the light goes out for the third time and
again immediately after the light comes on the next time.
6. If the average readings and the dial setting vary by more than 15°F, recalibrate by following
the instructions outlined below.
To Recalibrate
1. Remove dial from dial shaft "B".
2. Turn screw "A" clockwise to decrease and counterclockwise to increase the temperature.
3. 1/4 turn changes the temperature 35°F.
4. Replace dial on dial shaft.
5. After a calibration is made, set the dial at 350°F and recheck the oven temperature using the
method above, outlined by items 1 thru 6.

16
SERVICE
THERMOSTAT INSTALLATION
With the upper head shield and both control panels removed, slide the thermostat
bulb assembly into the support brackets and the slot in the underside of the plate. Tighten
the two holding screws. The excess capillary tube should be pulled forward and down as
low as possible out of the heat zone, so that there is no chance of it coming in contact with
the burner flame. Push the sleeving up against the bulb holder. A loose fit between the bulb
holder and plate may damage the thermostat so that it will not control the temperature of the
griddle plate.
Fasten the two slotted screws that hold the thermostat body onto the lower control
panel. Make the electrical connections at the terminals making certain they are tight and
properly protected from grounding. Install the heat shield, control panels, and the thermostat
dial.

17
SERVICE
SOLID-STATE THERMOSTAT (MODEL SUFFIX “-SST”)
The 950FT Series solid-state temperature controller features a faster reacting 100K NTC
thermistor sensor and a narrow on-off differential to achieve closer control with minimal overshoot.
The remote panel mount potentiometer allows for easy component placement and a cooler location
for the controller module.
THERMOSTAT INSTALLATION
With the upper heat shield and both control panels removed, slide the thermostat sensor
assembly into the support brackets and the slot in the underside of the plate. Position the protective
sleeving over the sensor bulb so the electrical leads are fully protected and covered until they exit
the burner compartment. Tighten the two holding screws. Connect the senor leads at the controller.
Remove the cover protecting the control modules from dirt and grease. Remove the two
screws holding the controller mounting bracket and remove the bracket and the controllers suffi-
ciently to access the individual controller module to be changed. Remove the four (4) nylon stand-
offs from the mounting bracket. Remove the electrical connections at the power terminals, relay
terminals, sensor terminals and potentiometer terminals and connect them to the appropriate termi-
nals on the replacement module. Install the nylon stand-offs of the new module into the mounting
bracket and fasten the bracket into position. Make sure all wires are neatly bundled to prevent
grounding and replace the protective cover.
To replace just the remote potentiometer, the protective cover should be removed to access
the three potentiometer connections (violet, yellow & orange). Remove the temperature dial and the
lock nut fastening the potentiometer to the panel.
Install the new potentiometer and re-bundle the lead wires to prevent grounding.
Neither of these components are field serviceable if defective, and replacement is the only
service option. Make certain when completed that the wire bundle feeding the control panel compo-
nents does not become pinched when the control panel is closed and secured.
CALIBRATION CHECK
The solid-state thermostat is factory calibrated and does not require re-calibration as long as
the control is working properly. The controller does have an OFFSET ADJUSTMENT that can be
used to align the temperature dial markings with the indicator mark. First, carefully check calibration
as follows;
1. Place a reliable thermometer in the center of the top of the griddle plate over the thermal bulb.
2. Set the dial to 350°F.
3. The amber burner indicating light will switch from "ON" to "OFF" when the thermostat turns
off the burner.
4. Allow three (3) such cycles for the temperature to stabilize.
5. Read the pyrometer or thermometer immediately after the light goes out for the third time and
again immediately after the light comes on the next time.
6. If the average readings and the dial setting vary by more than 10°F, adjust by following the
instructions outlined below.

18
SERVICE
OFFSET ADJUSTMENT
DO NOT USE EXCESSIVE FORCE WHEN ADJUSTING TRIM POTS,
DUE TO SINGLE TURN TRIM POT ROTATION.
NOTE: Units are shipped factory calibrated. Adjustment should only be made if
optimum setting accuracy is desired at only one particular set point. This type of adjustment
will reduce calibration accuracy at all other set points in the range.
To adjust setting, turn thumb head on trim pot slightly clockwise to increase process tem-
perature and counterclockwise to decrease process temperature. This adjustment may be
done using a 3/16" flatblade screwdriver. See Diagram.
SAFETY PILOT VALVE
Model TS-11J is an automatic 100% safety pilot which provides complete gas shut off in
event of pilot failure. The safety valve is held closed by spring pressure. When red bottom is
pushed by hand, gas flows to pilot. Pilot heats thermocouple creating a very small amount
of electricity. This energizes a magnetic coil under red button and holds valve open, permit-
ting gas to flow to main burner and pilot without holding pressure on red button. In the event
of pilot failure, the flow of electricity will stop and spring will stop flow of gas to both pilot and
oven burner.