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SAFETY VALVE

 

The Safety Valve is set to automatically relieve the cooking 
compartment of excessive pressure build-ups by opening at a point 
between 15 1/2 Ibs and 16 Ibs 

CHECKING SAFETY VALVE

 

If the Safety Valve should leak continually with a pressure build-up, 
or should it cause an interruption of the cooking cycle prematurely 
(less than 15'/2 Ibs on the steam gauge), it must be determined to 
be defective and be replaced However, the steam gauge should first 
be checked for accuracy before making this determination   The 
steam gauge should register absolute zero with no pressure in the 
cooking cylinder If the normal zero setting has advanced somewhat 
through usage (a characteristic of steam gauges), the amount of 
advancement from absolute zero must be subtracted from its 
registered reading to determine the true steam pressure 

THE FLUE  

The Flue serves as a protection shield for the Steam Trap (B) Safety 
Valve (A) Exhaust Valve (D) as well as a front-facing mount for the 
Steam Gauge (E) As servicing of these parts may at times require 
the removal of the flue, an exploded view drawing is provided to 
show their proper relative positions within the flue and the method of 
their assembly to the cooking cylinder 

TO REMOVE THE FLUE

 

1 Unscrew and remove the exhaust silencer (F) 
2 Detach the 3/16" copper tube connector (C) from the Steam 

Gauge (E) at the ferrule nearest the steam gauge Then, remove 
the copper tube entirely by freeing it at the other ferrule 

3 Apply inward pressure at either sides of the Flue at points (1) and 

(2) with a screwdriver This will collapse the side walls slightly to 
allow the small fluted sections of sheet metal to clear the edges 
of the flue opening provided in the outer shell of the Steam-It 
With the restrictions of the flutes removed, the Flue may then be 
lifted up over the parts it houses 

4 To replace the Flue reverse the above steps 

STEAM GAUGE 

Located at the top rear of the Steam-It and mounted into the 
forward face of the flue for visibility, the Steam Gauge registers the 
pressure within the Steam-It cooking chamber To replace this unit it 
is necessary to disconnect the 3/16" copper tube connector and 
remove the two nuts holding the gauge framework in place 

STEAM TRAP

 

The Steam Trap is located within the flue at the top rear of the 
Steam-It It has the very important automatic, dual function of 
exhausting all cold air from the cooking compartment and of making 
a suitable seal to allow a pressure build-up of live steam during the 
cooking cycle  Failure of this unit to operate properly will result in 
uneven cooking 

HOW IT WORKS

 

With the introduction of steam into the cooking compartment, the 
cold air escapes through the Steam Trap When sufficient generated 
steam dispalces the cold air it passes through the Steam Trap and 
the thermostatic element becomes heated and expands to ' make a 
seal against the seat This action encloses the live steam within the 
cooking compartment and allows a steam pressure build-up to 
occur 

TROUBLE TESTS AND REMEDIES

 

the first indication of defective Steam Trap operation will usually be 
evidenced by uneven cooking   If working properly, the steam 
temperature will be even and cooking will be uniform through the 
cooking compartment Trouble may occur either through premature 
closing of the Steam Trap before all the cold air has been 
exhausted or by its failure to close sufficiently to enable a proper 
steam pressure build-up Either case warrants the replacement of 
the Steam Trap 

5147 

 

D Old Style Shown

 

Содержание ST-E

Страница 1: ...SERVICE PARTS MANUAL ELECTRIC STEAM IT STEAM COOKER STYLE C 35 Garvey Street Everett MA 02149 Form Number 5143B 12 85 Printed in U S A Tel 617 387 4100 Telex 94 9414 Cable MAFORCO MODEL ST E ...

Страница 2: ...esting parts or service always furnish the model and serial number of your unit These numbers are located on the name plate affixed to the top surface of the Steam It TABLE OF CONTENTS Master Illustration Parts list 5145 Buzzer Door Assembly Gasket 5136 Door Adjustment Removal 5067 Door Handle Assembly 5119 Fulcrum Drain Assembly 5146 Safety Valve Flue Pressure Gauge Steam Trap 5147 Exhaust Valve ...

Страница 3: ......

Страница 4: ... No 10 32 x 3 8 Hex Socket Hd Cap Screw st n st l 45 Door Handle Ass y Complete 95 0144 46 Drain Plug Ass y Complete 95 0154 Item No Description Part No 47 Handle Bumper 10 0226 48 No 8 32 x 3 8 Binding Hd Screw Ty Z st n st l 49 Safety Valve 10 4636 50 Steam Trap 10 6156 51 Adapter 10 6158 52 Old Style Exhaust Valve Exhaust Valve 208V 60 Cycle Complete 95 0944 Exhaust Valve 230 480V 60 Cycle Comp...

Страница 5: ...et should be sufficiently compressed against the door opening all the way around to prevent any steam leakage from occurring DOOR ASSEMBLY Parts List Item Description Part No 1 Pivot Spring Bearing 10 6765 2 Door Lift Springs pair 10 2785 3 10 32 Machine Screw 1 2 long 10 1776 4 Door Gasket 10 2666 5 Door Door Spring Assy 95 3204 6 Door Spring 95 0127 Complete Door Assembly Items 1 thru 6 95 0124 ...

Страница 6: ... of the door spring of the door assembly 3 When the ends of the door spring have been completely freed from their respective door spring studs the door lift springs on either side of the door assembly can easily be slipped off their studs 4 Rotate the entire door assembly out through the door opening passing the door handle through the opening first and then one end of the door spring as shown in ...

Страница 7: ...ck Knob 10 0050 7 Door Handle Casting 95 0134 8 1 4 20 Acorn Nut 10 2359 9 Door Handle Bearing Stud 95 0658 0btain at local hardware store Item Description Part No 10 Door Handle Bearing Bracket 95 0659 11 1 4 Shakeproof Lockwasher 10 2513 12 1 4 20 x 5 8 Rd Hd Screw 10 1731 13 Door Lock Ass y 95 3223 14 Door Lock Knob Ass y Items 1 thru 6 plus 13 95 0145 15 Complete Door Handle Ass y Items 1 thru...

Страница 8: ...e a means of discharging accumulations of water from the cooking cylinder ROLLER ASSEMBLY Built Prior to 10 85 Items 5 6 7 8 9 Built after 10 85 Items 2 8 9 13 14 The Roller Assembly must be kept free rolling at all times Should this assembly be allowed to become frozen due to lack of lubrication undue strain will be put on the door handle and the fulcrum casting while the door is being locked Use...

Страница 9: ...ar the edges of the flue opening provided in the outer shell of the Steam It With the restrictions of the flutes removed the Flue may then be lifted up over the parts it houses 4 To replace the Flue reverse the above steps STEAM GAUGE Located at the top rear of the Steam It and mounted into the forward face of the flue for visibility the Steam Gauge registers the pressure within the Steam It cooki...

Страница 10: ...ST E EXHAUST VALVE Parts List ...

Страница 11: ...5149 ...

Страница 12: ...ront lower panel Just right of center automatically delays the timer count down at the beginning of the cycle until the Steam It has fully free vented out all cold air from within the cooking cylinder and pressure has reached 10 PSI This delay insures the timer to count only that portion of the cycle when cylinder steam pressure is actually acting on the foods This of course is important when proc...

Страница 13: ...ry setting is for a one pound differential between cut in and cut off To increase the range of differential rotate screw clockwise to decrease the range of differential rotate the screw counterclockwise Check adjustments through a trial cycle by observing pressure gauge reading when contactor clicks out at maximum cylinder pressure and again when it clicks in after cylinder cooling The difference ...

Страница 14: ...is unit is wired to operate when the heating elements are on The circuit will be broken when the timer returns to the ZERO position Thus when the pilot light is on and off it signifies that the heating elements are cycling on and off to maintain cooking pressure in the cooking chamber OPTIONAL STEAM IT STAND Market Forge Steam Its can be supplemented with an optional stand for utility where maximu...

Страница 15: ...0 2993 Door Ass y L Hand St Steel Kit 90 9098 Door Ass y L Hand St Steel Kit 90 3154 Door Ass y R Hand St Steel 6 90 2663 Panel MTG Bracket 7 10 0493 Feature Strip ITEM NO PART NO DESCRIPTION 8 90 3210 Bracket Magnetic Catch 9 10 5561 Magnetic Catch 10 10 1869 No 10 32 x 1 2 Flat Head Screw 11 10 0454 Cabinet Hinge Right Bottom 10 0453 Cabinet Hinge Left Bottom 12 10 2365 Lock Nut 13 10 2511 Washe...

Страница 16: ...ustment or strip down clean and repair 3 Clean seating surfaces and gasket to make sure they are free of food particles Check for worn gasket or make door adjustment 4 Replace safety valve 5 Re adjust Unit releases pressure before cooking cycle has terminated on timer 1 Power loss 2 Low water cut off has functioned prematurely 1 Check for disruption at source of electric supply 2 Adjust or replace...

Страница 17: ...5156 ...

Страница 18: ...UNITS BUILT PRIOR TO 6 79 ...

Страница 19: ... C1 FROM L3 REMOVE CONTROL CIRCUIT WIRE C2_ FROM N CONNECT SEPARATE 22O 240 VOLT SUPPLY ONLY TO C1 C2 FOR SINGLE PHASE CONNECTION 220V OR 240V BRIDGE L1 L2 L3 AND CONNECT TO INCOMING PHASE CONNECT N TO INCOMING NEUTRAL CONNECT CONTROL CIRCUIT WIRE C1 TO L3 CONNECT CONTROL CIRCUIT WIRE C2 TON NOTE FOR Norway 230 V 3PH 5OHz 3 WIRE ELECTRICAL SERVICE USE WIRING DIA B95 3775 POWER REQUIREMENTS NOMINAL...

Страница 20: ......

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