Porter-Cable C2550, Instruction Manual

16- ENG

A02233

MAINTENANCE

Customer Responsibilities

Daily or
after each
use

Before
each
use

●

●

●

●

Every
8
hours

Every
40
hours

Every
100
hours

●

●

1

1- more frequent in dusty or humid conditions

Check Safety Valve

Drain Tank

Oil Leaks

Check Oil

Change Oil

Air Filter

NOTE:

See “Operation” section for the location of controls.

To ensure efficient operation and longer life of the air compressor outfit, a
routine maintenance schedule should be prepared and followed. The following
routine maintenance schedule is geared to an outfit in a normal working
environment operating on a daily basis. If necessary, the schedule should be
modified to suit the conditions under which your compressor is used. The
modifications will depend upon the hours of operation and the working
environment. Compressor outfits in an extremely dirty and/or hostile
environment will require a greater frequency of all maintenance checks.

Unit cycles automatically when power is on. When
performing maintenance, you may be exposed to voltage

sources, compressed air, or moving parts. Personal injuries can occur.
Before performing any maintenance or repair, disconnect power source
from the compressor and bleed off all air pressure.

To Check Safety Valve

If the safety valve does not work properly, over-
pressurization may occur, causing air tank rupture or an

explosion. 

1.

Before starting compressor, pull the ring on the safety valve to make sure
that the safety valve operates freely. If the valve is stuck or does not
operate  smoothly, it must be replaced with the same type of  valve. 

To Drain Tank

1.

Set the On/Auto/Off lever to “OFF”.

2.

Pull the regulator knob out and turn counter-clockwise to set the outlet
pressure to zero.

3.

Remove the air tool or accessory.

4.

Pull ring on safety valve allowing air to bleed from the tank until tank
pressure is approximately 20 psi. Release safety valve ring.