Henny Penny AHC-990 Technical Manual Download Page 58

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Model AHC-990/993

4-6

Item No.

Part No.

Description

Quantity

26906

Power Cord 120V 20AMP

72532

Power Cord Assembly - 120/30A TWIST LK- AHC-990/993

64126

Air Heater Assy-600W-120V (includes

63815

gasket) - AHC-993

64127

Air Heater Assy-900W-120V (includes

gasket) - AHC-990

Fan Blade - 5-3/8”

Blower - Motor 208V

Blower - Motor 120V

Sensor - High Limit - 335

Deg.

63829

Assy - Vent Motor - 110

64098

Assy - Sealed Switch and Actuator

63814

Gasket - Plate - Blower Motor Mounting

59496

Stud Assy-Motor Mounting Plate

63461

Vent Hose-Intake

63462

Vent Hose-Exhaust

93388

Track-Vent Slide-Channel

Slide-Front

Vent Slide

Breaker-Push Button

1 1/8 Plug Button

7/8 Plug Button

Recommend Parts: A=Truck Stock/B=Dist. Stock

*not shown

June 2012

Summary of Contents for AHC-990

Page 1: ...Henny Penny Humidified Holding Cabinets With Automatic Water Fill Model AHC 993 Model AHC 990 TECHNICAL MANUAL ...

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Page 3: ......

Page 4: ...ooling Fan Replacement 3 10 3 10 High Limit Air Heater Replacement 3 10 3 11 Blower Motor Replacement 3 11 3 12 Air Heater Replacement 3 12 3 13 Speaker Replacement 3 12 3 14 Complete Panel or PC Board Replacement 3 13 3 15 Float Switch Replacement 3 14 3 16 High Limit Water Heater Replacement 3 15 3 17 Water Pan Heater Replacement 3 16 3 18 Solenoid Valve and Water Strainer Replacement 3 19 3 19 ...

Page 5: ...on CAUTION used without the safety alert symbol indicates a po tentially hazardous situation which if not avoided may result in property damage CAUTION used with the safety alert symbol indicates a po tentially hazardous situation which if not avoided may result in minor or moderate injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious inj...

Page 6: ...d 16 Bad high limit Check high limit and replace if bad Low or improper voltage Compare receptacle voltage to data plate voltage Door gasket torn or worn Replace bad door gaskets Air probe faulty open E 6A Ohm out the probe and replace or shorted E 6B if necessary B Cabinet steaming Humidity setpoint too high Decrease humidity setpoint or product soggy SP 4 in Special Program Mode Water heater pro...

Page 7: ...chanical vent parts HEATING SYSTEM A Unit not heating Bad control board Replace control board Bad high limit Check high limit replace if bad Bad air heater or blower relays Replace relay Bad air heater Check heaters and replace if bad see Tech Mode item 18 Faulty wiring Check for loose connections or broken wires B Unit not reaching set Blower not working Check Blower and replace if bad temperatur...

Page 8: ...g Blower not working Check blower and replace if bad E 5 See Tech Mode item 18 Bad control board Replace control board Relay stuck closed Replace relay 1 3 TROUBLESHOOTING continued Problem Cause Correction HEATING SYSTEM Continued Feb 2011 ...

Page 9: ...e panel cools down the controls should return to normal if E 4 persists have the PC board replaced Turn switch to OFF position then back to ON if display shows E 5 heating circuits and temperature probe should be checked once the unit cools down the controls should return to normal if E 5 persists have PC board replaced Turn switch to OFF position then back to ON if display shows E 54A the control...

Page 10: ...e temperature probe is repaired or replaced the controls should return to normal if E 6 persists have PC board replaced Turn switch to OFF position then back to ON if the display shows E 12A the water heater should be checked and repaired or replaced the water heater probe is built into the water heater the controls should return to normal if E 12A persists have PC board replaced Turn switch to OF...

Page 11: ...Turn switch to OFF position then back to ON if the display shows E 46 the control should be re initialized see Pro gramming Section if E 46 persists have PC board replaced Check vent on rear of module for obstructions or have vent activation switch replaced Vent acorn nuts too tight loosen if necessary Fill water pan in bottom of unit to the maximum water fill mark this warning won t shut down the...

Page 12: ...motor fill solenoid valve fan water heater air heater relay order from left to right b AMPS V_S_F_W_A_ c NC GD V_S_F_W_A_ no connect ground detection on outputs to relays d All outputs and inputs V_S_F_W_A_ P_ power switch input E_ exhaust vent switch input F_ float switch input 4 Vent open or closed 5 CPU temperature 6 Cabinet air temperature 7 Water heater temperature 8 Food probe temperature 9 ...

Page 13: ...y If the output is on shows beside the output letter Ex V If the control senses a problem with the output flashes b AMPS V_S_F_W_A_ shows in the display A checkmark beside the letter indicates normal amps A flashing X beside the letter means a problem exists c NC GD V_S_F_W_A_ shows in the display This monitors a possible problem with the relays on the output PC board A checkmark beside the letter...

Page 14: ...ry use only Press to continue to the Humidity Value 10 HUMIDITY VALUE This step shows the present humidity level inside the cabinet Press to continue to the Water Heater Condition 11 WATER HEATER CONDITION This step shows water heater condition as GOOD or BAD Press to continue to the Analog Inputs 12 ANALOG INPUTS This step displays the present status of any channel of the controller s a to d conv...

Page 15: ... calibration offset highest value T 11 Factory Use T 12 Water heater temperature user calibration offset highest value T 13 Humidity circuit calibration T 14 Humidity sensor calibration offset specific value sent with each humidity sensor T 15 Humidity user calibration offset highest value T 16 CPU control temperature highest value T 17 Factory Use T 18 Outputs Inputs on outputs steps use the four...

Page 16: ...isplay Test Press any of the product buttons and every LED on the 16 digit display lights T5 Segments Test Repeatedly pressing any product button lights one segments in every one of the 16 digit displays T6 Digits Test Repeatedly pressing any product button lights all segments in one of the 16 digital displays Scrolls though all 16 T7 Decimal Points Test Repeatedly pressing any product button ligh...

Page 17: ...ter Heater Temperature Calibration Offset Highest This is a user calibration to make sure the display shows the actual water heater temperature Press and hold and use to set the display to match the actual temperature 15o F Press and hold to change the amount of the offset 15o F Press and hold to view the highest air temperature recorded Press to reset highest temperature T13 Humidity Circuit Cali...

Page 18: ...eset highest humidity T16 CPUo Control Temperature Highest Value Press to show the highest temperature to which the control board was exposed T17 View ADC Channel Factory use T18 Outputs Inputs The following components can be tested toggles the vent motor off and on toggles the fill solenoid valve off and on toggles the cooling fan off and on toggles the water heater off and on toggles the air hea...

Page 19: ...ours ST 9 Solenoid cycle count ST 10 Longest solenoid on time max 5 minutes ST 11 Vent motor ST 12 Highest air temperature ST 13 Highest water heater temperature ST 14 Factory Use ST 15 Highest humidity value ST 16 Highest CPU temperature ST 17 Water heater too hot cycle count ST 18 Sys ram fade count ST 19 Hold ram fade count ST 20 Stat ram fade count ST 21 Ram data error count ST 22 Data total l...

Page 20: ...ave been on ST 6 Water Heater On Hours This section shows the number of hours the water heater has been on ST 7 Circulation Fan On Hours This section shows the number of hours the cooling fan has been on ST 8 Water Solenoid On Hours Shows the number of hours the solenoid has been on ST 9 Solenoid Cycle Count Shows the number of times the solenoid has been turned on ST 10 Longest Solenoid On time M...

Page 21: ...up Ex o F or o C or speaker vol ume ST 19 Hold Ram Fade Count This section shows the number of times the hold memory has been lost during a power up May be lost at a power up after a power loss during a holding cycle ST 20 Stat Ram Fade Count This section shows the number of times the stats memory has been lost during power up The information in the Stats Mode is updated every two hours and this c...

Page 22: ...e last 10 power ups and when they oc curred Press to view the log ST 27 Heat Up Log Factory use ST 28 Resets All Stats This section allows the user to reset all data stored in the Stats Mode Press and hold for 3 seconds The Data Logging and Manufacturing Mode are mainly for Henny Penny use only For more information on these modes contact the Service Department at 1 800 417 8405 or 1 937 456 8405 2...

Page 23: ...nity The humidity sensor relays the cabinet humidity to the controls If it becomes faulty E 17 then HUMIDITYSENSOR FAILED shows on the display Replace sensor as follows To avoid electrical shock or property damage move the POWER switch to OFF and disconnect main circuit breaker or unplug cord at wall receptacle 1 Open operator side door of unit 2 Using a Phillip s head screwdriver remove the front...

Page 24: ...tructions before installing sensor cover 9 After calibration is complete install cover Calibration Calibrate the humidity sensor after a sensor or control replace ment A calibration board is supplied with each control kit and humidity sensor kit but can also be ordered separately under part number 14391 AHC 993 ONLY AHC 990 continue onto step 12 1 Unscrew the silver cap from humidity sensor 2 Remo...

Page 25: ... should display 10 Reverse calibration board and insert the two prongs marked 80 into humidity sensor 11 Push and hold then press Release both buttons a 5 digit number around 110 00 130 00 should display 12 Push to HUMIDITY SENSOR CALIB OFFSET 13 Find the offset number on the mounting plate of the humidity sensor Figure 3 7 14 Push and hold and press to enter offset value 15 Press and hold to exit...

Page 26: ...om unit 3 Using 5 16 socket remove the 4 nuts securing the control cover and remove cover Figure 3 1 4 Pull wires from switch and check across the 2 terminals for continuity Figure 3 2 With switch in ON position the circuit should be closed In the OFF position the circuit should be open If the switch is defective continue with step 5 5 Pinch the tabs on the rear of the switch and pull the switch t...

Page 27: ...ug the wires to the probe Figure 3 1 4 Using a multimeter or ohmmeter check across the probe terminals for the correct ohms using the RTD Resistance Chart on the following page If the probe proves faulty continue onto step 5 5 Using a 3 4 wrench loosen probe strain relief and pull the probe from the unit Figure 3 2 6 Slide new probe through the strain relief extending the probe about 1 25 4 mm int...

Page 28: ...225 99 138 58 89 1228 12 139 59 44 1230 26 140 60 00 1232 39 141 60 56 1234 52 142 61 11 1236 65 143 61 67 1238 79 144 62 22 1240 92 145 62 78 1243 05 146 63 33 1245 18 147 63 89 1247 31 148 64 44 1249 44 149 65 00 1251 57 150 65 56 1253 70 151 66 11 1255 83 152 66 67 1257 95 153 67 22 1260 08 154 67 78 1262 21 155 68 33 1264 34 156 68 89 1266 46 157 69 44 1268 59 158 70 00 1270 72 159 70 56 1272 ...

Page 29: ...r remove the four screws securing the front panel 2 Pull panel down pull connectors from the back of it and remove panel from unit 3 Label wires to transformer and unplug wires to transform er Figure 3 1 4 Using a Phillip s head screwdriver remove the 2 screws securing the transformer and pull transformer from unit Figure 3 2 5 Install new transformer in reverse order and unit is now ready for use...

Page 30: ... removing meter leads or electri cal shock could result 3 With power reapplied let unit start heating up or enter the Tech Mode in Special Program Mode and check the relays in the output test See T 18 in the Tech Mode Sec tion 4 With the component energized example air heaters 0 volts should show on the output side of the relay and 12 volts on the input side 5 With the component not energized 208 ...

Page 31: ...e the thermal joint compound will shorten the life of the relay 10 Install new relay in reverse order and unit is now ready for use To avoid electrical shock or property damage move the POWER switch to OFF and disconnect main circuit breaker or unplug cord at wall receptacle 1 Using a Phillip s head screwdriver remove the module screws from both sides Figure 3 1 2 Remove screws from front and rear...

Page 32: ...avoid electrical shock or property damage move the POWER switch to OFF and disconnect main circuit breaker or unplug cord at wall receptacle 1 Remove module top per paragraph 3 10 2 Remove wires from high limit Figure 3 1 3 Check across the terminals for continuity If the unit is not heating the circuit should be closed or read no resistance If high limit is defective continue onto step 4 4 Remove...

Page 33: ...wires to blower motor Figure 3 1 3 Using a Phillip s head screwdriver remove the screws securing the blower bracket to the module Figure 3 2 4 Pull bracket from module Loosen set screw on fan blade and pull blade from blower Figure 3 3 5 Remove the 3 nuts securing the blower to the bracket and remove blower motor Figure 3 4 6 Install new blower in reverse order and unit is now ready for use Figure...

Page 34: ...er and remove heater Figure 3 2 5 Install new heater in reverse order and unit is now ready for use To avoid electrical shock or property damage move the POWER switch to OFF and disconnect main circuit breaker or unplug cord at wall receptacle 1 Remove the 4 screws securing the front panel 2 Pull connectors from back of panel and remove panel 3 Unplug wires to speaker Figure 3 1 4 Using a Phillip ...

Page 35: ... PC Board replace ment 1 Remove the 4 screws securing the front panel 2 Pull connectors from back of panel and remove panel Figure 3 1 Install complete panel in reverse order When installing the PC board continue to step 3 3 Using 5 16 socket remove the 4 nuts securing the control cover and remove cover Figure 3 2 4 Pull the connectors from PC Board Figure 3 3 5 Using 5 16 socket remove the nuts s...

Page 36: ...h the overflow tube or place your hand in the water in the water pan when draining the unit Failure to follow this warning could result in severe burns and injury 2 Remove screws and lower access panel from rear of unit Figure 3 2 3 Unplug wires to float switch Figure 3 3 4 Remove nut securing the float switch and pull float switch from unit Figure 3 4 5 Install new float switch in reverse order m...

Page 37: ...llow this warning could result in severe burns and injury 2 Remove screws and lower access panel from rear of unit Figure 3 2 3 Using an 11 32 socket or wrench remove the nuts securing the water heater cover and remove cover Figure 3 3 4 Remove wire from high limit Figure 3 4 5 Check across the terminals for continuity If the unit is not heating the circuit should be closed or read no resistance I...

Page 38: ...he overflow tube or place your hand in the water in the water pan when draining the unit Failure to follow this warning could result in severe burns and injury 2 Allow unit cool If Loctite is applied when unit is still hot the Loctite will set before the nuts are installed 3 COUNTERTOP MODELS Remove screws and both lower access panels Figure 3 2 Floor models continue onto step 4 4 Using an 11 32 s...

Page 39: ...late discard the insulation Proceed to step 10 8 Locate the aluminum octagon plate in the kit Make sure the surface is free of debris and place the plate over the 4 long studs Figure 3 7 9 Install new heater making sure the flat side is towards the plate the wires are on top and the terminal end aligns with the notch in the aluminum plate as shown in Figure 3 8 10 Install the new insulation from t...

Page 40: ...n in Figure 14 DO NOT overtighten Overtightening the nuts could damage the coating on the heater causing the heater to fail prematurely 13 Apply thermal compound HP part no MS01 368 251 thermal joint compound to bottom of high limit and reinstall high limit with spacers and reconnecting high limit wires and water pan heater wires to unit 14 Reinstall water heater cover and re connect water supply ...

Page 41: ...or place your hand in the water in the water pan when draining the unit Failure to follow this warning could result in severe burns and injury 2 Remove screws and lower access panel from rear of unit Fig ure 3 2 3 Disconnect lead wires from solenoid valve Figure 3 3 4 Using a flat blade screwdriver loosen hose clamp and remove hose from barb fitting 5 Using a Phillips head screwdriver remove 4 scr...

Page 42: ...To avoid electrical shock or property damage move the POWER switch to OFF and disconnect main circuit breaker or unplug cord at wall receptacle 1 Remove module top per paragraph 3 10 2 Using a 5 16 socket or nutdriver remove the 4 nuts secur ing the bracket to the back panel Figure 3 1 3 Label and disconnect the wires to the vent motor 4 Using a Phillip s head screwdriver remove the vent motor fro...

Page 43: ...ain circuit breaker or unplug cord at wall receptacle 1 Remove module top per paragraph 3 10 2 Label and pull the wire connectors from the microswitch Figure 3 1 3 Using a 3 16 socket or nutdriver remove the nuts secur ing the microswitch and pull microswitch from unit Figure 3 2 4 Install new microswitch in reverse order Figure 3 1 Figure 3 2 Feb 2011 ...

Page 44: ... open door assembly Using both hands pull back on cam on one end of flip door hinge 2 While holding in on cam swing flip door out of frame Once flip door is out of frame hold cam tightly and then slowly release tension on cam The cam secures a high tension spring and rod that will fall out of extrusion if released suddenly If replacing flip door assemblies with cams part nos 94182 94183 continue o...

Page 45: ...frame Then in reverse order of installation steps 1 2 depress the cam on the other end of the extrusion until the cam is secured in the door frame hole on the latch side of the door Ensure the cams are on the correct end of extrusion They are marked L for left hand and R for right hand Doors will not stay up if reversed See below 5 Locate tube of spindle lube part no 12124 supplied with doors and ...

Page 46: ...ly remove the two 2 whole doors form the hinges Do not remove the flip doors 5 For AHC 990 using two people lay the unit on its side AHC 993 will have to be removed from the counter top and set on its side Refer to the installation instructions in reverse order for removal The following steps are for all units 6 Locate the heater cover Using a 11 32 socket or wrench remove the two 2 nuts securing ...

Page 47: ...flat blade screwdriver loosen the hose clamps on both sides of the water pan Remove both water hose from the water pan 12 Using a phillips head bit remove the screws that secure the four 4 sheet metal pan retainers to the bottom side of the unit Set all retainers a side for reinstall 13 Using a 11 32 socket remove all nuts that secure the water pan to the underside of the unit 14 Remove water pan ...

Page 48: ...uide Install on the new water pan with the open end facing the water heater mounting studs 18 Using the steps provided in the Water Pan Heater Replacement and the Floatswitch Replacement remove and install on the new water pan Be sure to follow specs and torques per instructions 19 Remove the drain plug and install in new water pan 20 New water pan is now ready for installation 21 Follow the remov...

Page 49: ...Model AHC 990 993 3 27 Feb 2011 ...

Page 50: ...Model AHC 990 993 3 28 Dashed lines indicate control module can be wired for either auto ventilation control or auto water fill Transformer connect wire 20 to primary wire 27485 120V 60hz 1ph Aug 2013 ...

Page 51: ...Model AHC 990 993 3 29 27486 200 240V 50 60hz 1ph Transformer connect wire 20 to the appropriate primary wire 208 or 240V March 2011 ...

Page 52: ...Model AHC 990 993 3 30 March 2011 ...

Page 53: ...red by your distributor from Henny Penny Corpo ration All replacement parts except lamps and fuses are warranted for 90 days against manufacturing defects and workmanship If damage occurs during shipping notify the carrier at once so that a claim may be properly filed Refer to warranty in the front of the manual for other rights and limitations Recommended replacement parts are indicated with A or...

Page 54: ...19 Speaker Assembly 1 1 A 2 63460 Transformer Assembly 120V Pri 24 Sec 1 1 A 3 40645 Relay 25A Solid State 5 5 4 93847 Terminal Block Assembly 1 1 B 5 16684 Cooling Fan Assy 120V 1 1 B 6 66879 Assy Resistor Capacitor 2 2 Recommend Parts A Truck Stock B Dist Stock 6 1 2 3 4 5 Feb 2013 ...

Page 55: ...2 5 154616 001 Assy AHC 990 Glass Door LH Top 2 5 154616 002 Assy AHC 990 Glass Door LH Bottom 2 B 6 14271 Kit Door Hinge 4 7 27149 Door Stop 4 8 86850 Service Pack 5 in Casters 1 27154 Caster 5 in Swivel Locking 2 27155 Caster 5 in Swivel 2 LW01 002 Lockwasher Split Ring 1 4 16 SC01 039 Screw 1 4 20 x 1 Hex Head 16 9 93007 Assy Thumb Screw on back panel 2 10 EF02 125 Breaker Push Button Reset Rec...

Page 56: ... AHC 993 1 B 4 14272 Kit Door Handle 2 5 87198 Assy Door Flip RH 1 3 Size Parts breakdown on next page 1 5 87934 Assy Door Flip LH 1 3 Size Parts breakdown on next page 1 6 88490 Shroud Base 1 7 89260 Plate Service Access 2 8 SC06 026 Screw 4 B 9 14271 Kit Door Hinge 4 10 93007 Assy Thumb Screw on back panel 2 Recommend Parts A Truck Stock B Dist Stock not shown 7 9 2 1 5 6 8 AHC 993 Countertop Mo...

Page 57: ...on only 1 4 71067 Rod Flip Door 1 5 71316 Spring Flip Door 1 A 6 70768 Cam Flip Door RH 2 A 6 70769 Cam Flip Door LH 2 7 SC01 032 Screw 2 8 LW02 006 Lockwasher 2 9 NS03 024 Nut 2 B 10 14272 Kit Door Handle 1 11 SC01 186 Screw 4 B 12 14271 Kit Door Hinge 2 13 SC01 086 Screw 4 14 87199 Weld Assy Flip Door Frame RH 1 3 Size 1 14 87935 Weld Assy Flip Door Frame LH 1 3 Size 1 A 15 12124 Spindle Lube 1 ...

Page 58: ...63 Blower Motor 120V 1 A 5 18201 Sensor High Limit 335Deg 2 B 6 63829 Assy Vent Motor 110 1 B 7 64098 Assy Sealed Switch and Actuator 1 8 63814 Gasket Plate Blower Motor Mounting 1 9 59496 Stud Assy Motor Mounting Plate 1 10 63461 Vent Hose Intake 1 11 63462 Vent Hose Exhaust 1 13 93388 Track Vent Slide Channel 2 14 63473 Slide Front 2 15 63469 Vent Slide 1 16 EF02 125 Breaker Push Button 1 17 PL0...

Page 59: ...140135 Kit AHC 993 Humidity Sensor 1 A 1 140212 Kit AHC 990 Humidity Sensor 1 2 EF02 124 Strain Relief 1 A 3 81673 Probe Air Temp 1 A 4 14391 Kit Calibration Board 1 5 59383 Assy Sensor Housing and Bracket 1 Recommend Parts A Truck Stock B Dist Stock not shown June 2012 ...

Page 60: ... 990 993 4 8 4 5 6 7 3 14 1 2 7 11 10 9 13 24 12 13 15 10 17 8 18 19 7 16 20 15 1 34 21 9 22 16 23 8 24 24 8 ALL UNITS BUILT BEFORE JAN 1 2012 9 UNITS BUILT AFTER JAN 1 2012 Model AHC 993 Model AHC 990 Feb 2014 ...

Page 61: ...e AHC 990 2 18 26968 006 Water Pan Hose AHC 993 1 19 MS01 263 Clamp Hose 2 20 FP01 265 Elbow 3 4 90 Degree SS Street 1 21 FP02 089 Nipple 3 4 x 17 LG SS 1 22 FP01 271 Elbow 1 4 NPT Male 90 Degree Brass 1 23 FP01 272 Elbow 1 4 x 1 8 NPT Male Brass 1 B 24 FP01 154 Socket Quick Disconnect female 1 B 25 03697 Accessory AHC990 Drain Hose Assy 1 26 FP01 268 Elbow FNPT 3 4 x 3 4 Plastic 1 27 FP01 269 Cou...

Page 62: ...8V 1 1 140172 Kit Water Pan Heater 240V 1 2 NS02 007 Nut Hex Keps 8 32 C 12 3 140308 120V AHC 99X Water Pan Assy 1 3 140309 208V AHC 99X Water Pan Assy 1 3 140310 240V AHC 99X Water Pan Assy 1 A 4 63831 Hi Limit Water Pan 1 5 63810 Gasket Tank Water Reservoir 1 Recommend Parts A Truck Stock B Dist Stock not shown 1 4 3 5 2 Feb 2014 ...

Page 63: ...concentration ring 1 4 SC01 076 Screw 8 32 x 1 4 PH THD S 8 4 ME50 048 Standoff 25 dia x 63 lg 8 32 SS 4 B 5 28071 Overflow Tube 1 6 79107 Chain Assy Retaining 2 7 91478 Assy Air Duct W O Scoop AHC 993 5 25 2011 after 1 7 91492 Assy 13 Tray Air Duct Lower W O Scoop 990 5 25 2011 after 1 8 88933 Cover Slotted Rear Water Pan Long 1 9 88936 Cover Slotted Front Water Pan Short 1 10 93820 Screen Drain ...

Page 64: ...5 with 2 AHC 993 s 03689 8 ft Adaptor Plate Replacing HCW 8 with 3 AHC 993 s 03700 8 ft Adaptor Plate w Cover Replacing HCW 8 with 2 AHC 993 s not shown NS03 023 Acorn Nut WA01 012 Washer quantities 4 03698 Plate Cover Stud Assy NS03 023 WA01 012 included Feb 2012 ...

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Henny Penny AHC-990, Technical Manual, Page: 58 / 65

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