Operation Manual

Job Card No.:
Engine:
Filing No.:
Pneumetic System
Testing / Servicing
0178-32-10 1185
© 0582
10.01.01
S/BVM 628
Testing
Check entire compressed-air system for correct functioning.
To prevent seizure by rust of the system’s control valves, drain water from system including air receivers
daily. Drain water from the compressed air receivers after each charging cycle as specified by the
Accident Prevention Regulation.
Job
Drain water from air receivers. If an automatic drain valve is provided, inspect this. Check that relief valve
blows off as 30 bar are exceeded. Check that the system’s control valves work properly.
Servicing
Clean air piping.
Job
Close shut-off valves on air receivers. Exhaust feed piping. Unscrew connections for control piping and blow
out any rust deposits. Refit connections.
Perform starting manoeuvre.
When starting manoeuvre is completed, check pressure on air receiver and temperature of starting valve (Job
Card 01.11.01).
When refitting piping, never apply white or red lead or varnish because this will render any subsequent
disconnections more difficult. In addition, hardened particles may find ingress into the system and
cause damage, in particular to the system’s control valves. For the same reason, be sure to keep
trimmings and similar foreign matter out of the piping.
When assembling the piping also keep chips and similar foreign matter out of the piping and away from the
control equipment.
Make sure that all pipe unions and connections are tightened securely, but never with internal stressing. If
necessary, align pipes so they fit perfectly. Do this in cold condition, and never fill piping with sand or similar
matter. Following pipe bending, clean piping inside from scale etc. and finally blow out.