86
CHAPTER 5: MAINTENANCE
087-0067 REV A
SCOTT SAFETY
Either:
Excessive stage
pressure
and
Insufficient
pressure or
volume.
1
Intel temperature
higher than
recommended
maximum.
2
Insufficient
supply.
3
Inlet or delivery
values not
closing properly.
4
Cylinder fins
clogged or dirty.
5
Intercooler and
aftercooler tubes
dirty.
6
Belt drive
slipping.
7
Air intake filter
dirty.
8
Wrong rotation.
1
Check that pipe works/values do not form a closed
loop. For example, feeding hot delivered air back
into machine inlet.
2
Check location. Maximum ambient temperature is
113F (45C).
3
Check and clean values. Replace worn parts as
needed.
4
Clean out cylinder fins.
5
Clean tubes with a brush and compressed air.
6
Adjust belt drive.
7
Service air intake filter.
8
Reverse motor feed wiring.
Overheating
1
Duty higher than
recommended.
1
Reduce duty to acceptable level.
Second stage
overheating.
1
Possible third
stage plunger
failure.
1
Dismantle and examine third stage plunger.
Replace if needed.
Excessive
noise.
1
Oil level low.
2
Pulley loose.
3
Belt drive worn.
4
Vibration in
machine.
5
Pulley out of
line.
6
Worn bearings.
1
Check oil level and fill.
2
Tighten pulley.
3
Replace worn belts.
4
Insecure mounting. Tighten mounting bolts.
5
Inspect and adjust the alignment of the pulley.
6
Dismantle examine and replace, if needed.
Excessive wear.
1
Excessive speed
and/or pressure.
2
Dirty air and/or
suction pipeline.
3
Excessive side or
end thrust.
4
Excessive
moisture content
in air.
5
Belt wear.
1
Check belts. Adjust as needed.
2
Clean filter element.
3
Pulley out of alignment. Realign as needed. Or
belt too tight or too loose. Adjust belt as needed.
4
Check drainage system and regularly check
condition of crankcase oil.
5
Belt too tight or too loose. Adjust as needed. Or
oil or grease on belt. Clean or replace vee belts.
Extended
running.
1
Machine not
large enough or
leaks.
1
Check for leaks.
Table 29
Troubleshooting Matrix (continued)
SYMPTOM
CAUSE
SOLUTION
Summary of Contents for HushAir Connect 7500
Page 1: ...User Guide 087 0067 Rev A HushAir Connect 7500 COMPRESSOR SYSTEM ...
Page 2: ......
Page 3: ...HushAir Connect 7500 User Guide COMPRESSOR SYSTEM 087 0067 Rev A ...
Page 8: ...IV CONTENTS 087 0067 REV A SCOTT SAFETY ...
Page 12: ...X LIST OF TABLES 087 0067 REV A SCOTT SAFETY ...
Page 42: ...20 CHAPTER 2 INSTALLATION 087 0067 REV A SCOTT SAFETY ...
Page 73: ...Configuring the System 51 SCOTT SAFETY 087 0067 REV A Figure 27 Override Status Screen ...
Page 106: ...84 CHAPTER 5 MAINTENANCE 087 0067 REV A SCOTT SAFETY Figure 48 Oil Drain Location 3 1 2 ...
Page 112: ...90 APPENDIX A SPECIFICATIONS 087 0067 REV A SCOTT SAFETY ...
Page 119: ......