Henny Penny 590 Maintenance Manual
Henny Penny 590 Maintenance Manual

Henny Penny 590 Maintenance Manual

Section 2. maintenance
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2-1. INTRODUCTION
2-2. MAINTENANCE HINTS
2-3. PREVENTIVE
MAINTENANCE
307

SECTION 2. MAINTENANCE

This section provides checkout and replacement procedures,
for various parts of the fryer. Before replacing any parts, refer
to the Troubleshooting Section to aid you in fi nding the cause
of the malfunction.
1. A multimeter will help you to check electric components.
2. When the manual refers to the circuit being closed, the
multimeter should read zero unless otherwise noted.
3. When the manual refers to circuit being open, multimeter
should read infi nity.
Do not move fryer with hot shortening in the frypot or
fi lter pan. Severe burns can result from splashing hot
shortening.
4. Remove weights from frame to easily access rear of fryer.
To ensure a long life of fryers and their components, regular
maintenance should be performed. Refer to the chart below.
Procedure
Filtering of shortening
Changing of shortening
Changing the fi lter envelope See KFC's Standards Library
Cleaning deadweight assy.
Cleaning the frypot
Reversing lid gasket
Lubricate rear lid rollers
Cleaning safety relief valve Annually-See Removal/Cleaning
Model 590/592
Frequency
See KFC's Standards Library
See KFC's Standards Library
Daily-See Deadweight Valve
Section
See KFC's Standards Library
Each 90 Days-see Reversing
Lid Gasket Section
Annually-See Lubricating Lid
Rollers Section
of Safety Relief Valve Section
2-1

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Summary of Contents for Henny Penny 590

  • Page 1: Section 2. Maintenance

    MAINTENANCE SECTION 2. MAINTENANCE This section provides checkout and replacement procedures, for various parts of the fryer. Before replacing any parts, refer to the Troubleshooting Section to aid you in fi nding the cause of the malfunction. 1. A multimeter will help you to check electric components.
  • Page 2: High Temperature Limit Control

    The red reset button is located under the control panel, in the front of the fryer, to the right of the drain. Once reset, the frypot starts heating.
  • Page 3 The tube must never be in such a position where it could accidentally touch the electrical power terminals. 10. Carefully bend the capillary tube as shown in photo and place into bulb brackets. Model 590/592...
  • Page 4: Fuse Holders

    Remove the control panel and pull the wires from the fuse holder terminals. Using a multimeter or continuity light, check across the terminals. The circuit should be closed. If not, re- place the fuse (HP# EF02-007) or fuse holder (HP# EF02-006). Model 590/592 1103...
  • Page 5: Power/Pump Switch

    The POWER/PUMP switch is a three way rocker switch with a center OFF position. With switch in the POWER position, the fryer operates. With switch in PUMP position, the fi lter pump operates, but the unit will not heat. To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.
  • Page 6: Temperature Probe Replacement

    10°C, the temperature probe should be replaced. An Ohm check can be performed also. See chart at end of this section. 1. Remove electrical power supplied to the fryer. To avoid electrical shock or property damage, move the power switch to OFF and disconnect main circuit breaker, or unplug cord at wall receptacle.
  • Page 7: Complete Control Panel-Henny Penny

    3. Unplug the connectors going to the control board. 4. Install a new control panel. The Henny Penny Fryer uses pressure as one of the compo- nents of the cooking process. Once the lid is sealed to the frypot, and the solenoid valve closes, a deadweight valve main- tains the correct pressure in the frypot.
  • Page 8: Tilting The Lid Upright

    Because of heat expansion and the pressure used for cooking process, gasket is constantly under extreme stress. Reversing the lid gasket will help to assure that the fryer will not lose pressure through leakage. 1. Put the lid in the upright position, as previously described.
  • Page 9: Lid Counterweight Cables

    2-12. LID COUNTERWEIGHT CABLES 1103 The Lid Counterweight in the back of the fryer balances the weight of the lid system to allow easier opening and closing of the lid. The weight has two cables attached to it, and weighs about 150 lbs.
  • Page 10: Pressure Pad

    If the pressure pad is worn, but not broken, it can be reversed 180 degrees, and the other end of the pad used. 6. Install new pad in reverse order. Model 590/592 1103...
  • Page 11: Lid Adjustment

    If steam leaks, check for: • Pressure pad wear • Cracked or worn gasket • Gasket installed improperly • Fryer operating above 12 psi (827 mbar) Fryer should be operating at 12 psi, or serious burns could result. Model 590/592 2-11...
  • Page 12: Solenoid Valve

    Cook Cycle and opens automatically at the end of the Cook Cycle. If this valve should become dirty, or the Tefl on seat nicked, pressure will not build up. The electric fryer uses a 208/240 volt 60 hertz coil (50 hertz internationally).
  • Page 13 6. Repair kit, Part No. 17120, is available if any of the seals must be replaced. If one seal is defective, replace all seals. Solenoid body must be removed from the fryer for replace ment of seals. Continue on to step 7.
  • Page 14: Deadweight Valve

    “OPERATING ZONE” (green area). The gauge pointer should not normally exceed the operating zone. If the pressure builds to 14 1/2 lbs.(999 mbar), the safety relief valve will open to release steam pressure from inside frypot. Model 590/592 1103...
  • Page 15: Removal & Cleaning Of Safety Relief Valve

    RELIEF VALVE. HOT STEAM WILL BE RELEASED AND SEVERE BURNS WILL RESULT. 1. At the end of each day’s usage of the fryer, the deadweight valve must be cleaned. The fryer must be OFF and pressure released. Open the lid and then remove the deadweight valve cap and deadweight.
  • Page 16: Pressure Gauge

    3. Clean the inside of the pipe tee with hot water. Turn the safety relief valve towards the rear of the fryer when reinstalling safety relief valve. 4. Immerse the safety relief valve in a soapy water solution for 24 hours.
  • Page 17 Primary Heat 1103 The electric fryer requires two switching contactors: a primary and a heat contactor. The primary contactor energizes (contacts close) any time the POWER/PUMP switch is in the POWER position, and the temperature of the shortening is below ( 215°...
  • Page 18 4. Remove the screws securing the contactor to the bracket and remove contactor from bracket. 5. Install new contactor in reverse order. 6. Install control panel and reconnect power to the fryer and test for proper operation. Model 590/592 1103...
  • Page 19: Heating Elements

    2-20. HEATING ELEMENTS 1103 The electric model fryer uses 2 heating elements. Heating elements are available in 208, 220/240, 380 and 415 volts. Check the data plate, on the shroud behind the lid, to determine the correct voltage elements. 1. Remove the electrical power supplied to the unit.
  • Page 20 10. Replace the heating elements, terminal end fi rst at approximately 45º angle, slipping the terminal ends through the front wall of the frypot. Model 590/592 1103...
  • Page 21 15. Replace the front control shroud and control panel. 16. Replace side panels. 17. Connect the power cord to the wall receptacle or close wall circuit breaker. Heating elements should never be energized without shortening in the frypot, or damage to elements could result. Model 590/592 2-21...
  • Page 22: Drain Microswitch

    4. Test to see if drain valve handle actuates the switch. The gap between the drain switch and the shaft should be no more than 1/8” (3 mm). HINT: Listen for audible click of switch while pulling drain valve handle. Model 590/592 1103...
  • Page 23: Drain Valve And Extension

    5. Replace the drain switch bracket. 6. Adjust the microswitch to be no more than 1/8” (3 mm) from the shaft of the drain valve. HINT: Listen for audible click of switch while pulling drain valve handle. Model 590/592 2-23...
  • Page 24: Nylatron Strips Replacement

    6. Remove the bolts securing the nylatron strips to the weight assembly and remove strips from weight assembly. 7. Using a Phillip’s-head screwdriver, remove the screws securing the front shroud. 8. Unfasten the exhaust hose from the hose clamp. Model 590/592 1103...
  • Page 25 11. Lining up the holes in the strips, fi t the front shroud back over the lid arms. 12. Secure the strips to the weight assembly. 13. Replace back shroud, top cap, and lid, and replacement is complete. Model 590/592 2-25...

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