![background image](http://html1.mh-extra.com/html/gardner-denver/esm-30/esm-30_original-user-manual_3716911035.webp)
6. Preparations for commissioning
35
6.4
Oil level check
Danger
Only check the oil level when the screw
compressor unit is out of operation and
depressurized!
The pressure reservoir can be under pressure and
the oil hot. Warning: Danger of scalding!
Do not spill oil! Check for leakage!
Fig. 14
1 Oil filler cap R1"
2 Oil-level indicator
3 Maximum oil level
4 Minimum oil level
Important
Do not mix oils of different specifications.
Machines which are delivered without oil must first
be filled to the max. mark in the pressure reservoir
sight glass (see also chapters 8.4 and 8.13)
Check the oil level as follows:
•
Stop the compressor, with the stop button.
•
Wait at least 5 minutes for the oil to settle and for
the air to disperse
•
The oil level is checked with the help of the
transparent plastic tube at the pressure reservoir
(- 2 - Fig. 14) after every stop and at regular
intervals. If required, top up oil
Also see chapter 8 “Service and maintenance”
6.5
Sound pressure level
Sound pressure level measured in dB(A) according to
ISO 2151 under full load at a distance of 1 m (tolerance:
± 3 dB(A)):
50 Hz compressors
dB(A)
ESM 30
67
ESM 37
68
ESM 45
69
ESM 50
67
60 Hz compressors
dB(A)
ESM 30
69
ESM 37
70
ESM 45
71
ESM 50
69
Subject to technical revision.
1
3
2
4