Check with operating or area personnel for deficiencies.
Check controls and unit for proper operation
Check for unusual noise or vibration
Check tension, condition and alignment of belts, adjust as necessary
Clean coils, evaporator drain pan, blower motor & drain piping as required.
Lubricate shaft and motor bearings.
Replace air filters.
Inspect exterior piping and valves for leaks; tighten connectors as required
Clean surrounding area, record results and findings and report any needed repairs or operational adjustments.

Obtain and review manufacturer's instructions. Follow manufacturer’s instructions or procedures if different to these instructions or procedures.
De-energize, lockout, and tag the electrical circuits.

Standard and Phillips head screw drivers-various sizes; Pliers-vise grip (2), slipjoint, needlenose, diagonal; cutting pliers, side cutters; Ball peen hammer; Hack saw and spare blades; 3/8' drive socket set and ratchet; Small set of Allen wrenches; Assorted center punches, drift punches, and steel chisel; 12' measuring tape; Crescent wrenches 4" to 8"; Open and box end wrenches ¼" to ¾"; File; Pipe wrenches to 14"; Small level and square; Pocket knife; Flashlights; Grease guns and oilers; Wire brush; Extension cord and inspection lights; Various cleaning tools - brushes, scrapers, etc; Emery cloth.
Cleaning Materials
Air Filters
Lubricant
Gloves.
Closely follow all safety procedures described in the Material Safety Data Sheet (MSDS).