john deer AC-70 Owner's Manual
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john deer AC-70 Owner's Manual

Portable forced air heaters
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JOHN DEERE PORTABLE FORCED AIR HEATERS
IMPORTANT: Read and understand this manual before
assembling, starting, or servicing heater.
Improper use of heater can cause serious injury. Keep
this manual for future reference.
Safety Information ............................................... 2
Unpacking ........................................................... 2
Product Identification ........................................... 3
Assembly ............................................................. 4
Theory of Operation ............................................ 5
Fuels .................................................................... 5
Ventilation ........................................................... 6
Operation ............................................................ 6
Storing, Transporting, or Shipping ....................... 7
OWNER'S MANUAL
MODELS: AC-70, AC-115, AC-165

TABLE OF CONTENTS

Save this manual for future reference.
http://www.allpartsinc.com/
Preventative Maintenance Schedule ................... 7
Troubleshooting ................................................... 8
Service Procedures ............................................. 9
Wiring Diagrams ............................................... 15
Accessories ....................................................... 23
Warranty and Repair Service ............................ 24

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Summary of Contents for john deer AC-70

  • Page 1: Table Of Contents

    JOHN DEERE PORTABLE FORCED AIR HEATERS OWNER’S MANUAL MODELS: AC-70, AC-115, AC-165 IMPORTANT: Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference. TABLE OF CONTENTS Preventative Maintenance Schedule ....

  • Page 2: Safety Information

    SAFETY INFORMATION 11. When heater is moved or stored, it must be in a level position or fuel spillage may occur. IMPORTANT: Read this owner’s 12. Use heater only in accordance with local manual carefully and completely ordinances and codes. before trying to assemble, op- 13.

  • Page 3: Product Identification

    PRODUCT IDENTIFICATION Nose Cone Guard Hot Air Upper Shell Outlet Fan Guard Handle Thermostat Lower Knob Shell Fuel Tank Air Filter End Cover Side Cover Ignition Control Assembly (assembly on inside of side cover) Fuel Cap Power Cord Figure 2 - 70 Models Hot Air Upper Shell Thermostat Knob...

  • Page 4: Assembly

    ASSEMBLY (FOR 115 AND 165 MODELS ONLY) These models are furnished with wheels and a front (FOR 70 MODELS ONLY) handle. Some models are furnished with a rear These models are furnished with a nose cone handle also. Wheels, handle(s), and the mounting guard.

  • Page 5: Theory Of Operation

    THEORY OF OPERATION chamber. This air is heated and provides a stream of clean, hot air. The air pump forces air through The Fuel System: The ignition control assembly provides power to the air line. The air is then pushed through the the ignitor.

  • Page 6: Ventilation

    VENTILATION Extension Cord Size Requirement 6 to 10 feet (1.8 to 3 meters) long, use 18 AWG WARNING:Provide a fresh air (0.75 mm2) rated cord opening of at least three square 11 to 100 feet (3.3 to 30.5 meters) long, use 16 AWG (1.0 mm2) rated cord feet (2,800 square cm) for each 101 to 200 feet (30.8 to 61 meters) long, use...

  • Page 7: Storing, Transporting, Or Shipping

    STORING, TRANSPORTING, 3. If any debris is noted in old fuel, add 1 or 2 quarts of clean kerosene to tank, stir, and drain OR SHIPPING again. This will prevent excess debris from Note: If shipping, transport companies require clogging filters during future use. fuel tanks to be empty.

  • Page 8: Troubleshooting

    TROUBLESHOOTING WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. POSSIBLE CAUSE REMEDY FAULT CONDITION 1. No power to heater 1. Check circuit breaker in elec- Motor does not start five seconds trical panel after heater is plugged in 2.

  • Page 9: Service Procedures

    SERVICE PROCEDURES IMPORTANT: Remove fan from motor shaft WARNING: To avoid risk of before removing motor from heater. The weight of the motor resting on the fan could damage the burn and electrical shock, never fan pitch (see Figure 9). attempt to service heater while it 1.

  • Page 10: Pump Pressure Adjustment

    SERVICE PROCEDURES PUMP PRESSURE ADJUSTMENT Continued 1. Remove pressure gauge plug from filter end cover (see Figure 13). AIR OUTPUT, AIR INTAKE AND LINT 2. Install accessory pressure gauge (part number FILTERS HA1180). 1. Remove upper shell (see Figure 7 or 8, page 9). 3.
  • Page 11 SERVICE PROCEDURES IGNITOR 1. Remove upper shell and fan guard (See Upper Continued Shell Removal, page 9). FUEL FILTER 2. Remove fan (see page 9). 1. Remove side cover screws using 5/16" nut- 3. Remove 4 side cover screws with a 5/16" driver.
  • Page 12 SERVICE PROCEDURES Combustion Chamber Continued 7. Remove ignitor screw with a 1/4" nut driver. Burner Strap Nozzle/ Carefully remove ignitor from nozzle adapter Adapter Photocell bracket. Assembly Bracket CAUTION: Do not bend or Air Line Hose strike ignitor element. Handle Fuel Line with care.
  • Page 13 SERVICE PROCEDURES FUEL AND AIR LINE REPLACEMENT AND PROPER ROUTING Continued 1. Remove upper shell (see Upper Shell Re- 6. Carefully remove nozzle from the nozzle adapter moval, page 9). using 5/8" socket wrench. See Figure 23. 2. Remove side cover screws using 5/16" nut 7.

  • Page 14: Pump Rotor

    SERVICE PROCEDURES Blade Pump Plate Continued Air Intake Filter PUMP ROTOR Filter End (Procedure if Rotor is Binding) Cover 1. Remove upper shell (see Upper Shell Re- moval, page 9). 2. Remove filter end cover screws using 5/16" Insert nut-driver (see Figure 25 or 26). Rotor Air Output 3.

  • Page 15: Wiring Diagrams

    SERVICE PROCEDURES 6. Replace fuse cover (see Figure 29). 7. Replace side cover (see Figure 15 or 16, page 11). Continued IGNITION CONTROL ASSEMBLY Fuse Fuse Cover Clips WARNING: High Voltage! Fuse 1. Unplug heater. 2. Remove side cover screws (4) using 5/16" nut-driver to expose ignition control assembly (see Figure 15 or 16, page 11).

  • Page 16: Illustrated Parts Breakdown And Parts List

    ILLUSTRATED PARTS BREAKDOWN MODEL AC-70 http://www.allpartsinc.com/ 111168-01A...
  • Page 17 PARTS LIST PART MODEL AC-70 NUMBER DESCRIPTION QTY. This list contains replace- M51104-01 Handle able parts used in your 098511-67 Upper Shell (Service Part Will Be Black) heater. When ordering M11084-29 Screw, #10-16 x 3/4" parts, be sure to provide 108631-01 Screw, #10-16 x 1"...
  • Page 18 ILLUSTRATED PARTS BREAKDOWN MODELS AC-115, AND AC-165 http://www.allpartsinc.com/ 111168-01A...
  • Page 19 PARTS LIST MODELS AC-115, AND AC-165 PART NUMBER DESCRIPTION QTY. 098511-292 098511-292 Upper Shell (Service Part Will Be Black) M15823-27 M15823-27 Screw, #10-16 x 1/2" 098512-71 098512-75 Combustion Chamber 103154-05 M16660-02 Photocell Bracket M10908-2 M10908-2 Screw, #6-32 x 3/8" M16656-24 M16656-24 Photocell Assembly Burner Head Assembly...
  • Page 20 ILLUSTRATED PARTS BREAKDOWN MOTOR AND PUMP ASSEMBLY MODEL AC-70 MODELS AC-115, AND AC-165 http://www.allpartsinc.com/ 111168-01A...
  • Page 21 This list contains replaceable parts used in your heater. When ordering parts, be sure to provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. MODEL AC-70 PART NUMBER DESCRIPTION QTY.

  • Page 22: Specifications

    SPECIFICATIONS Model Size 115T 165T Output Rating (Btu/Hr) 70,000 115,000 165,000 Fuel Use only kerosene, #1/#2 diesel/fuel oil, JET A or JP-8 fuels* Fuel Tank Capacity (U.S. Gal./Liters) 5/18.9 9/34 13.5/51 Fuel Consumption (Gal. Per Hr/Liters Per Hr) .52/1.97 .85/3.00 1.2/4.54 Pump Pressure (psi) Electric Requirements...

  • Page 23: Accessories

    ACCESSORIES Heater accessories and parts are available at your local dealer. Should your dealer not stock or is un- able to order a particular accessory or part, please contact DESA Industries for more information. DESA Industries of Canada, Inc. 2220 Argentia Road, Unit #4 Mississauga, Ontario L5N 2K7 Parts Department 1-905-826-8010...

  • Page 24: Warranty And Repair Service

    WARRANTY AND REPAIR SERVICE KEEP THIS WARRANTY Model No. Serial No. Date of Purchase (To be filled in by purchaser) LIMITED WARRANTY DESA Industries warrants this product and any parts thereof, to be free from defects in materials and workmanship for one (1) year from the date of first purchase when operated and maintained in accordance with instructions.

This manual is also suitable for:

Ac-165Ac-115

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