MT 25/40/60 GALLON SERIES
MODULAR BASE DIRECT STEAM TILTING KETTLES
PARTS AND SERVICE MANUAL
EFFECTIVE OCTOBER 11, 2016
The Company reserves the right to make substitution in the event that items specied are not available.
ERRORS: Descriptive and/or typographic errors are subject to correction.
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802) 860-3732
Superseding All Previous Parts Lists.
MARKET FORGE INDUSTRIES
www.mi.com
P/N 14-0324 Rev B
TABLE OF CONTENTS
ADJUSTMENTS .......................................................................3
ILLUSTRATED PARTS LIST
TILTING MECHANISM ..................................................................4
KETTLE CABINET BASE ...............................................................5
DRAIN ASSEMBLY .....................................................................8
PISTON ASSEMBLY ...................................................................9
VALVE AND FAUCET ................................................................. 10
CRANK SHAFT .......................................................................11
VALVE ASSEMBLY ................................................................... 12
KETTLE JACKET ASSEMBLY ......................................................... 13
STEAM SUPPLY VALVE .............................................................. 14
SWING DRAIN ....................................................................... 14
DRAW OFF VALVE ................................................................... 15
STEAM TRAP ....................................................................... 16
OCTOBER 11, 2016 2 MT25, MT40 & MT60 DIRECT STEAM KETTLES
ADJUSTMENTS
GENERAL INSPECTION & CLEANING
The screw assembly should run smoothly throughout
the entire stroke. If operation is not uniform, remove the
screw assembly and proceed as follows:
1. Inspect screw shaft for accumulation of foreign matter
in the ball grooves.
2. Using cleaning uid or solvent, remove dirt from ball
grooves. Be sure to ush the ball nut assembly thoroughly.
3. Cycle the ball nut along the screw shaft several times.
Then, wipe with a dry, lint less cloth and lubricate immediately.
CABINET EXTERIOR REMOVAL
Side and rear panels of all cabinets in which kettles are
mounted are easily removed without the use of tools.
Each panel is grasped at the bottom edge and lift up and
out towards you to release it from the panel mounting
brackets
Replacement is completed by pushing panel up under
cabinet top allow hook to fall in place at the bottom until
panel mounting brackets are engaged. Door may be removed to improve access to cabinet interior for repairs.
The two at head screws and nuts holding cabinet hinge
are removed and the door lifted out. When doors are re-
mounted the nal tightened position of hinge determines
the alignment of the door and must be set with care.
DRAW-OFF VALVE – VALVE SEAT LAPPING
Should either the disc, or seat be found damaged it is
necessary to either replace the entire valve or perform the
lapping procedure as follows:
1. Disassemble the valve and clean both the disc and
the valve seat.
2. Attach the handle to the stem with the valve bonnet
removed.
3. Apply a good grade of ne lapping compound to the
disc and insert it into the valve to make light contact
against the seat.
4. Rotate the stem disc against the seat by turning the
handle, allowing the stem to wobble in the space the
bonnet would normally occupy. Continue with light
pressure until compound dries.
5. Reassemble and test for leaks with valve closed.
If dripping occurs repeat the lapping procedure as
many times as required to obtain a watertight seal.
DRAW-OFF VALVE – COMMON LEAK REPAIRS
To repair a valve leak, the source must rst be determined. Leaks from around the valve stem are corrected
by replacing the rubber “0” ring .Dripping from the valve
outlet which occurs with the valve tightly closed indicates
faulty seating of the valve disc against the valve seat.
Dripping is often corrected by cleaning residue from disc
and seat using very ne emery.
REPAIR & REPLACEMENT
In the event that the kettle fails to operate correctly, the difculty
should rst be isolated to either the kettle itself or the steam
supply which heats the kettle. While mechanical problems are
obvious faults of the kettle, any deciencies in volume and pressure of steam should be traced to the steam generator and the
cause determined.
OCTOBER 11, 2016 3 MT25, MT40 & MT60 DIRECT STEAM KETTLES
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7
7
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5
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8
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12
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13
Power Tilt
(optional)
TILTING MECHANISM
Manual Tilt
ITEM PART NO. DESCRIPTION
1 91-9335 POWER TILT MOTOR WELD ASSEMBLY
2 91-9336 MOTOR MOUNTING PLATE
3 98-1726 POWER LIFT FOOT BRACKET
4 91-9353 POWER TILT NYLON STRIP
5 98-0555 LIFTING LEVER ARM
6 91-9387 LEVER ARM
7 91-9324 LIFT SCREW ASSEMBLY
8 98-4131 CONDENSER HOSE
9 90-3490 HINGE BLOCK
10 08-5217 VALVE RETAINER COLLAR
11 10-5242 VALV E
12 98-4128 FAUCET HOSE
13 98-3676 MOTOR
OCTOBER 11, 2016 4 MT25, MT40 & MT60 DIRECT STEAM KETTLES
KETTLE CABINET BASE
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3
4 5 7
6
ALL MODELS
1
ITEM PART NO. DESCRIPTION
1 08-5894 MARKET FORGE NAMEPLATE LOGO
2 91-5795 HANDLE, FRONT
3 98-3992 PANEL, FRONT ASSEMBLY, 24”
3 98-3993 PANEL, FRONT ASSEMBLY, 36”
3 98-3986/98-1621 PANEL, FRONT ASSEMBLY, 48” (60-Gallon)
4 10-0631 LEG, 6”
*4 08-5211 LEG, 10”
*4 08-5206 LEG, 8”
5 98-3994 PANEL, SIDE ASSEMBLY
6 91-9103 HAND CRANK PANEL
7 08-5208 LEG, FLANGED 6”
*8 98-3996 PANEL, REAR ASSEMBLY, 36”
*8 98-3995 PANEL, REAR ASSEMBLY, 48” (MT-60) (NEED QTY. OF 2)
*9 10-0326 CASTER, 5” (OPTIONAL)
* NOT SHOWN.
OCTOBER 11, 2016 5 MT25, MT40 & MT60 DIRECT STEAM KETTLES
KETTLE CABINET BASE
MT25 AND MT40
ITEM PART NO. DESCRIPTION
1 91-2717 HINGE AND LID ASSEMBLY
2 -- FAUCET AND SPOUT ASSEMBLY (see page 10)
3 10-0412 SWING DRAIN
4 97-5063 2” DRAW OFF VALVE
5 10-5242 1/2” ANGLE STEAM VALVE
6 10-3945 CLAMP, CONDENSATE HOSE
7 08-5469 STEAM TRAP WITH HOSE FITTING
8 90-7493 CONDENSATE HOSE, 3/8” ID 36” LG.
9 90-8725 SPLASH GUARD ASSEMBLY
10 90-7495 STEAM HOSE, 3/4” ID
11 10-3916 CLAMP, STEAM HOSE
12 REF 36” CABINET
13 90-3788 PAN SUPPORT UPRIGHT, LEFT
14 90-3783 PAN SUPPORT UPRIGHT, RIGHT
15 10-1791 MACHINE SCREW, 1/4” x 7/8” LG.
16 10-2403 WASHER, 1/4”
17 10-6784 SPACER, SMALL
18 90-3476 SPACER, LARGE
19 90-3389 PAN SUPPORT, REMOVABLE
20 -- TILT MECHANISM (see page 4)
OCTOBER 11, 2016 6 MT25, MT40 & MT60 DIRECT STEAM KETTLES
KETTLE CABINET BASE
MT60
ITEM PART NO. DESCRIPTION
1 10-0412 SWING DRAIN
2 10-3945 CLAMP, CONDENSATE HOSE
3 08-5469 STEAM TRAP WITH HOSE FITTING
4 90-7493 CONDENSATE HOSE, 3/8” ID
5 10-4928 1-1/2” DRAW OFF VALVE
6 REF 48” CABINET
7 10-5242 1/2” ANGLE STEAM VALVE
8 10-6796 HINGE AND LID ASSEMBLY
9 10-3916 CLAMP, STEAM HOSE
10 91-1977 STEAM HOSE, 3/4” ID
11 -- FAUCET AND SPOUT ASSEMBLY (see page 10)
12 91-1839 PAN SUPPORT UPRIGHT, LEFT
13 91-1838 PAN SUPPORT UPRIGHT, RIGHT
14 10-1791 MACHINE SCREW, 1/4” x 7/8” LG.
15 10-2403 WASHER, 1/4”
16 10-6784 SPACER, SMALL
17 90-3476 SPACER, LARGE
18 91-1983 PAN SUPPORT, REMOVABLE
19 90-8725 SPLASH GUARD ASSEMBLY
20 -- TILTING MECHANISM (see page 4)
OCTOBER 11, 2016 7 MT25, MT40 & MT60 DIRECT STEAM KETTLES
DRAIN ASSEMBLY
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6
2
5
1
ITEM PART NO. DESCRIPTION
1 10-4804 PRESSURE GAUGE
2 10-7974 SIGHT WINDOW
3 10-0412 SWING DRAIN
4 90-7475 SUPPORT, NIPPLE, DRAIN
5 08-6553 LOW WATER CUT OFF
6 91-1835 STRAINER
4
OCTOBER 11, 2016 8 MT25, MT40 & MT60 DIRECT STEAM KETTLES
PISTON ASSEMBLY
9
ITEM PART NO. DESCRIPTION
1 98-0530 Housing-Compression Rod & Spring
2 98-0535 Compression Rod
3 08-4606 Compression Spring
4 98-0537 Floating Nut
5 98-0536 End Guide
6 08-4200 Rivet, Barbed
7 08-3205 Hooking Pin, Driv Lok Type “E” 7/32 x 2
8 08-1208 Plug, Plastic
9 98-0529 COMPLETE PISTON ASSEMBLY
OCTOBER 11, 2016 9 MT25, MT40 & MT60 DIRECT STEAM KETTLES
VALVE AND FAUCET
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4
2
3
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10
9
11
8
ITEM PART NO. DESCRIPTION
1 10-0105A KNOB
2 10-6303 VALVE RETAINER COLLAR
3 10-5242 VALVE
4 90-3490 HINGE BLOCK
5 91-4795 RUBBER HOSE, 3/4” ID X 36” LONG
6 90-3210 MAGNETIC BRACKET
7 10-5561 DOOR MAGNET
8 10-5753 NOZZLE, SWIVEL SPOUT
9 91-0887 RISER, 15” LONG
10 10-7680 FAUCET SET
11 08-5467 ADAPTER
OCTOBER 11, 2016 10 MT25, MT40 & MT60 DIRECT STEAM KETTLES
CRANK SHAFT
ITEM PART NO. DESCRIPTION
1 08-7906 Handle with Knob
2 08-7911 Screw, Set 1/4 – 20, 3/8” Long
3 98-1537 Assembly, Crank Shaft
4 90-8878 Clip, Bracket, Universal
5 10-1735 Screw, #8-32, Sheet Metal
6 10-2508 Washer, Stainless Steel
OCTOBER 11, 2016 11 MT25, MT40 & MT60 DIRECT STEAM KETTLES
VALVE ASSEMBLY
2
1
4
5
3
ITEM PART NO. DESCRIPTION
1 08-4822 WATER VALVE
2 08-4979 CHECK VALVE
3 08-4131 CONDENSER HOSE
4 98-4030 FILL HOSE
5 98-4128 FAUCET HOSE
OCTOBER 11, 2016 12 MT25, MT40 & MT60 DIRECT STEAM KETTLES
KETTLE JACKET ASSEMBLY
1
2
3
5
4
ITEM PART NO. DESCRIPTION
1 * STEAM TRAP
2 90-7493 RUBBER HOSE, 3/8 ID X 40” LONG
3 91-4795 RUBBER HOSE, 3/4 ID X 36” LONG
4 10-7680 FAUCET SET
5 98-0771 LIFT ARM, FOR 40 GALLON KETTLE
5 98-0599 LIFT ARM, FOR 25 & 60 GALLON KETTLE
* Kit to change trap to current style #98=4494
* New steam trap #08-5469
OCTOBER 11, 2016 13 MT25, MT40 & MT60 DIRECT STEAM KETTLES
STEAM SUPPLY VALVE
1
2
1
2
ITEM PART NO. DESCRIPTION
1 10-0105 STEAM VALVE HANDLE
2 10-5242 1/2” ANGLE STEAM CONTROL VALVE
SWING DRAIN
ITEM PART NO. DESCRIPTION
1 91-1835 STRAINER, SWING DRAIN
2 10-0412 SWING DRAIN, CASTING
OCTOBER 11, 2016 14 MT25, MT40 & MT60 DIRECT STEAM KETTLES
DRAW OFF VALVE
ITEM PART NO. DESCRIPTION
97-5063 2” DRAW OFF VALVE ASSEMBLY (STANDARD)
1 98-6155 ACORN NUT, 10-24 UNC
2 97-5566 HANDLE, STAINLESS STEEL
3 97-5069 GLAND NUT
4 97-5072 BONNET
5 97-5078 “O” RING
6 97-5075 STEAM ASSEMBLY
7 98-6156 VALVE BODY
97-5605 3” DRAW OFF VALVE ASSEMBLY (OPTIONAL)
1 97-5066 ACORN NUT, 10-24 UNC
2 97-5067 HANDLE, STAINLESS STEEL
3 97-5068 GLAND NUT
4 97-5073 BONNET
5 97-5079 “O” RING
6 97-5076 STEAM ASSEMBLY
7 97-6497 VALVE BODY
OCTOBER 11, 2016 15 MT25, MT40 & MT60 DIRECT STEAM KETTLES
1A
STEAM TRAP
2
1B
ITEM PART NO. DESCRIPTION
1A 08-5469 TRAP ONLY (NEW STYLE)
1B 98-4494 1/2” STEAM TRAP KIT (TO CHANGE OLD STYLE TO CURRENT STYLE)
2 10-4937 THERMOSTAT, STEAM TRAP
OCTOBER 11, 2016 16 MT25, MT40 & MT60 DIRECT STEAM KETTLES
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