RIX Industries MAN-2PS2B-N2 - Clearances & Tolerances

RIX Industries MAN-2PS2B-N2 Page 11
Chapter 6 - Troubleshooting
6.1 Compressor Symptoms
Abnormal compressor conditions can be evaluated more quickly and accurately by looking at
interstage pressures and temperatures. Use the table below to aid in determining the cause of any
problems with the compressor and the necessary corrective action.
Item
Symptom
Probable Causes
Corrective Action
1
Compressor stops running
before system pressure is
reached
The discharge pressure
switch is set too low
Adjust pressure switch set
point
The power source stopped
supplying power
Investigate power supply
source
The compressor has seized
Inspect compressor internal
components
2
Compressor does not reach
design flow or pressure
System plumbing is leaking
Check system for leaks
Supply pressure is too low
Adjust supply pressure to
range stated in Compressor
Specifications
Lack of back pressure in
user’s downstream piping
If downstream should be
pressurized, look for leaks in
downstream system.
If downstream should not be
pressurized, no problem.
Restricted filters or piping
Clean or replace filters and
upstream piping
Belt is loose
Inspect and tighten belt to
proper tension
Excessive piston to head
clearance
Measure and adjust piston
clearance
Piston rings are worn
Replace piston rings
Compressor valve has
failed
Replace compressor valve
3
High pressures
Restricted discharge filter
or piping
Clean filter and downstream
piping
Compressor valve has
failed
Replace compressor valve
4
Relief valve opens
High pressures were
reached
See item 3
Relief valve is set too low
Adjust relief valve set point
Relief valve has failed
Replace relief valve
5
Compressor is vibrating
excessively
Crankcase mounting bolts
are loose
Tighten crankcase mounting
bolts
Motor mounting bolts are
loose
Tighten motor mounting
bolts
Piston clearances not
properly adjusted
Measure and adjust piston
clearance