Hypertherm Freedom 38 PPA, Service Manual

Page: 157 / 218

Freedom 38 PPA Service Manual 809010 157
6 – Air Compression Components
The air compression components section covers the air compressor system.
 Replace the air compressor belt on page 160
 Replace the air compressor and drive pulley on page 161
 Replace the compressor tension pulley on page 165
 Replace the compressor inlet valve on page 166
 Replace the air compressor temperature switch, tee fitting, elbow fitting, and adapter on page 167
 Replace the air compressor check valve and scavenge line orifice on page 169
WARNING!
ELECTRIC SHOCK CAN KILL
Disconnect or turn OFF electrical power before performing any maintenance
that involves removing the cover from the system or the consumables from
the plasma torch.
Read the separate Safety and Compliance Manual (80669C) included with
your system for more safety precautions pertaining to plasma cutting.
WARNING!
RISK OF INJURY – HANDLE COMPRESSED AIR WITH CARE
THESE PROCEDURES MUST BE PERFORMED ONLY BY EXPERIENCED SERVICE
TECHNICIANS.
When servicing air compressor components:
 Discharge internal pressure from the air compressor before performing
maintenance on any compressor parts. Trapped air pressure can discharge
violently and cause serious injury.
 Do not inhale compressed air. Serious injury can result.
 If air that was under pressure pierces your skin, seek medical treatment
immediately.
 Never disable or disconnect any safety mechanisms for the air compressor.
 Check all air compressor hoses and connections for leaks and damage before
operating the system again.
NOTICE
Never use PTFE tape on any joint preparation. Use only a liquid or paste thread sealant on male
threads.