Suggested Lubricants. GSI Outdoors PNEG-552

7. Service

Suggested Lubricants

Insulation Class Consistency

A and B Medium

A and B

F and H

Medium

Medium

Type

Polyurea

Polyurea

Polyurea

Grease Frame Type

Shell Dolium R 215T and Smaller

Shell Dolium R 254 and Larger

Shell Dolium R All

NOTE: All of the auger and metering roll bearings are lifetime lubricated and do not require

service relubrication.

Lubrication Procedures

If the motor is equipped with an alemite fitting, clean the tip of the fitting and apply grease with a grease gun. Use 1 or 2 full strokes on motors in NEMA 215 frame and smaller. Use 2 to 3 strokes on NEMA 254 through NEMA 365 frame. Use 3 to 4 strokes on NEMA 404 frames and larger. On motors having drain plugs, remove drain plug and operate motor for 20 minutes before replacing drain plug. On motors equipped with slotted head grease screw, remove screw and apply grease tube to hole. Insert 2" to 3" length of grease string into each hole on motors in NEMA 215 frame and smaller. Insert 3" to 5" length on larger motors. On motors having grease drain plugs, remove plug and operate motor for 20 minutes before replacing drain plug.

Suggested Lubricants

Insulation Class

A and B

A and B

F and H

Consistency

Medium

Medium

Medium

Type

Polyurea

Polyurea

Polyurea

Grease

Shell Dolium R

Shell Dolium R

Shell Dolium R

Frame Type

215T and Smaller

254 and Larger

All

NOTE: All of the auger and metering roll bearings are lifetime lubricated and do not require

service relubrication.

Additional Checks

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

2. 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 1/8''.

3. Inspect flame sensor for possible damage or poor connections. Flame sensor wire must be in good condition.

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

5. Inspect the top auger and bottom auger drive lines for proper adjustment and condition.

Readjust line tension as required.

PNEG-552 100 Series Dryer

35

7. Service

6. 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 through area.

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

metal parts.

1

3

36

4

2

Figure 7A

7. Remove the blue burn optimizer cone and inspect:

Ref #

1

2

3

4

Description

Inspect the collector plate (at the top of the burner casting) and the 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.

Burner Cup

Ignitor Plug and Electrodes

Flame Sensor on the Heater

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

9. Make sure all dryer guards and warning decals are securely installed. Guards should 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 page 25

for heater test fire.)

PNEG-552 100 Series Dryer