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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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Daikin Air Handling Unit OAH004GHAM

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Maintenance Plans for Daikin Air Handling Unit Model OAH004GHAM

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1 Weekly Fan Shaft Bearing Lubrications

CAUTION: Bearing overheating potential. Can damage the equipment. Do not over-lubricate bearings. Use only a high grade mineral grease with a 200°F safe operating temperature.

Fan Shaft Bearings CAUTION: For safety, stop rotating equipment.

Did you add one half of the recommended amount shown in Table 43?

Did you start bearing, and run for a few minutes?

Did you stop bearing and add the second half of the recommended amount?

Did the temperature rise, sometimes 30°F (1°C), after re-lubrication?

Enter the operating temperature of the bearing

Is the bearing operating at temperature less than 200°F (94°C)?

Is the bearing not exceeding 225°F (107°C) for intermittent operation?

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1 Yearly Coils Cleaning

Check the coil for cleanliness

If the coil is dirty, proceed with the following steps

Brush or vacuum clean the coil

Use a chemical coil cleaner on multiple row coils

Read and follow the chemical cleaner’s instructions

Warning: Some cleaners may contain harsh chemicals

Ensure fins are not damaged while cleaning

Sign off on the coil cleaning

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1 Yearly Electrical System Check

Annually check and snug all electrical connections

Inspect for signs of water damage such as corrosion and repair if necessary

Check ground conductor and connection integrity

Service if needed;

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2000 Hourly Supply / Return Fan Motors Lubrication

CAUTION: Bearing overheating potential. Can damage the equipment. Do not over-lubricate bearings. Use only a high grade mineral grease with a 200°F safe operating temperature.

Motor Bearings: Supply and return fans—Supply and return fan motors should have grease added after every 2000 hours of operation.

Using the following procedure, re-lubricate the bearings while the motor is warm, but not running.

NOTE: Specific greasing instructions are located on a tag attached to the motor. If special lubrication instructions are on the motor, they supersede all other instructions.

Table 43: Recommended Lubricants and Amounts for Fan Motor Bearings

Mfr. Grease

NEMA Size 56 to 140: Amount to Add (oz.)

NEMA Size 140: Amount to Add (oz.)

NEMA Size 180: Amount to Add (oz.)

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48 Hours Air Handling Unit Check

Disconnect and lock electrical power source

Check tightness of all bearing, wheel, and sheave setscrews (or capscrews). Refer to Table 28 on page 42

Recheck belt tension and adjust if necessary. Belts that are tensioned sufficiently to slip one to two seconds at startup perform satisfactorily, extending life and reducing vibration

If re-tensioning is necessary, be certain to retain sheave alignment

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