FAN Blade Removal and Installation

Note: All of the auger and metering roll bearings are lifetime lubricated and do not require service relubrication.

1.Remove and clean the gas line strainers. Make certain gas valves are closed and that gas is purged from the system before attempting to disassemble anything.

2.Inspect the collector plate at the top of the burner casting andthe burner cup for any accumulation of foreign material. Clean if required. Foreign material in the burner cup or casting will not burn out and will impair burner operation.

3.If required, inspect ignitor plug and clean the electrodes. Use an ignition point file to remove carbon and rust between the electrode surfaces. Ignitor gap should be about 1/4" (3 mm).

4.Inspect flame sensors for possible damage or poor connections. Flame sensor wires must be in good condi- tion.

5.Inspect and manually rotate the top auger paddle assembly. The paddle unit must rotate freely without any indication of sticking or binding.

6.Inspect the top auger and bottom auger drive lines for proper adjustment and condition. Re adjust line tension as required.

7.Operate dryer clean out levers, and check clean out hatch mechanism for proper operation. With hatch open, inspect and remove any accumulation of dirt, fines and foreign material from the bottom auger trough area.

Note: Do not allow high moisture material to collect within the trough area. It may adversely affect metal parts.

8.Inspect entire dryer for loose, worn or damaged parts. Include check of auger flighting, metering rolls and other internal parts. Check that temperature sensors within air plenum chamber are secured within insulated clamps, and do not chafe on other metal parts.

9.Make sure all dryer guards and warning decals are securely installed. Make certain guards do not interfere with moving parts. If guards or warning decals are missing, contact your dealer for a free replacement.

10.Test fire the dryer several weeks ahead of the drying season. Check for possible gas leaks. See burner test fire section.

When working on or around the fan blade, be aware that it may free wheel, and could cause serious injury. It may be helpful to gently wedge the propeller to prevent this from occuring. However, do remember to remove the wedge before restarting the fan.

If at any stage the blade has become damaged, it is important that it is repaired and that the blade is in balance. Failure to do this could result in the blade running out of bal- ance, and potentially exploding. Balancing the blade is a specialists job, if in doubt contact GSI or your dealer.

The fan blade is secured to the motor shaft by the use of a taper-lock bushing, motor shaft key and three cap screws.

CAUTION: Although the taper-lock method of retaining the blade onto the motor shaft is simple, it is essential that the following points be read carefully and fully understood. Improper installation can cause a loose flying blade, and result in serious injury or death.