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John Deere AC-100LP User Manual

Page 17

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Service

Operator’s Manual

17

MAINTENANCE (CONTINUED):

(Fig. 3)

(Fig. 4)

(Fig. 5)

WARNING: NEVER SERVICE HEATER WHILE

IT IS PLUGGED IN, CONNECTED TO

PROPANE / L.P. SUPPLY, OPERATING OR

HOT. SEVERE BURNS AND ELECTRICAL

SHOCK CAN OCCUR.

MOTOR:

1. With heater on its side, remove base tray.
2. Access ground screw through underside of heater base.

Remove ground screw. Disconnect the green motor wire

and the green power cord wire from underside of shell

(Fig. 3).

3. Remove black and white motor wires from terminal board

(Fig. 3).

4. Carefully push motor wires through hole in bottom of

shell.

5. Remove screws holding motor mount to shell. Use nut-

driver (Fig. 4).

6. Carefully pull motor and fan out of shell.
IMPORTANT: Be careful not to damage fan. Do not set

motor and fan down with the weight resting on fan. This

could damage fan pitch.

7. Use hex wrench to loosen setscrew which holds fan to

motor shaft.

8. Remove fan. Be careful not to damage the fan blade

pitch.

9. Use nut driver to remove two nuts that attach motor to

motor mount.

10. Discard old motor.
11. Attach motor to motor mount with two nuts. Tighten

nuts firmly.

12. Replace fan on motor shaft. Make sure set screw

contacts flat surface on motor shaft.

13. Tighten set screw firmly (40-50 inch-pounds [46.08-

57.60 kilogram-centimeters]).

14. Carefully route motor wires through hole in shell

(Fig. 5). Place motor, motor mount and fan guard

into rear of heater shell.

15. Insert screws through heater shell and into motor

mount. Tighten screws firmly.

16. Turn heater on its side to access opening in bottom of

base. Connect green wires from motor, transformer and

power cord to heater shell using ground nut (Fig. 3).

17. Attach black and white wires to terminal board (see

"Wiring Diagram" for correct locations).

18. Replace base tray.

Ground Screw

Terminal

Board

Motor

Green

Lead

Power

Cord

Green

Lead

Transformer

Green Lead

Hole in Shell

for Wires

Motor

Mount

Screw

Fan

Guard

Motor

Mount

Hole in

Shell for

Wires