Gardner Denver Air Compressor HR15F-12

1. Clean dust and foreign matter from cylinder head, motor, fan blade, air lines, intercooler and tank.

2. Remove and clean intake air filters.

WARNING! Do not exceed 15 PSIG nozzle pressure when cleaning element parts with compressed air. Do not direct compressed air against human skin. Serious injury could result. Never wash elements in fuel oil, gasoline or flammable solvent.

3. Check V-belts for tightness. The V-belts must be tight enough to transmit the necessary power to the compressor. Adjust the V-belts as follows:

a. Remove bolts and guard to access compressor drive.

b. Loosen mounting hardware which secures motor to base. Slide motor within slots of baseplate to desired position.

c. Apply pressure with finger to one belt at midpoint span. Tension is correct if top of belt aligns with bottom of adjacent belt. Make further adjustments if necessary.

d. Check the alignment of pulleys. Adjust if necessary.

e. Tighten mounting hardware to secure motor on base.

Check oil level of both compressor and engine

Added quality lubricating oil as required?

Drained moisture from tank by opening tank drain valve located in bottom of tank?

Did you ensure that tank pressure did not exceed 25 PSIG while draining?

Turned off compressor at the end of each day's operation?

Turned off power supply at wall switch?

Sign off on the daily air compressor maintenance

Loosen locknut (4) and back off several turns. Do not turn differential pressure adjustment nut (3).

Check reading on the tank pressure gauge.

Set the compressor maximum pressure by turning threaded cap (1) clockwise to increase pressure or counter clockwise to decrease pressure. Pressure setting must be 5 psig less than setting of pressure switch.

After pressure is set, tighten locknut (4). Be careful not to move threaded cap (1).

Sign off on the pressure adjustment

Loosen locknut (2) and back off several turns

Check reading on the tank pressure gauge

Set the pressure to 30 psig differential (unload at 170 psig, reload at 140 psig)

Turn nut (3) clockwise to increase differential pressure or counterclockwise to decrease differential pressure

After pressure is set, tighten locknut (2). Be careful not to move nut (3)

Sign off on the Compressor Pilot Valve Differential Pressure Adjustment

Change crankcase oil. Use type and grade oil as specified in the section on 'Compressor Oil Specifications'

Check entire system for air leakage around fittings, connections, and gaskets, using soap solution and brush

Tighten nuts and capscrews as required

Check and clean compressor valves, replace springs, discs and seats when worn or damaged

CAUTION! Valves must be reinstalled in original position. Valve gaskets should be replaced each time valves are serviced

Pull ring on all pressure relief valves to assure proper operation