Atlas Copco SAPE, Instruction Manual

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22 Before clearing the generator for use after maintenance or overhaul,
submit it to a testrun, check that the AC power performance is correct and
that the control and shutdown devices function correctly.
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Apply the proper tool for each job. With the knowledge of correct tool use and
knowing the limitations of tools, along with some common sense, many
accidents can be prevented.
Special service tools are available for specific jobs and should be used when
recommended. The use of these tools will save time and prevent damage to
parts.
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Batteries
When servicing batteries, always wear protecting clothing and glasses.
1 The electrolyte in batteries is a sulphuric acid solution which is fatal if it
hits your eyes, and which can cause burns if it contacts your skin.
Therefore, be careful when handling batteries, e.g. when checking the
charge condition.
2 Install a sign prohibiting fire, open flame and smoking at the post where
batteries are being charged.
3 When batteries are being charged, an explosive gas mixture forms in the
cells and might escape through the vent holes in the plugs.
Thus an explosive atmosphere may form around the battery if ventilation
is poor, and can remain in and around the battery for several hours after it
has been charged. Therefore:
- never smoke near batteries being, or having recently been, charged,
- never break live circuits at battery terminals, because a spark usually
occurs.
4 When connecting an auxiliary battery (AB) in parallel to the unit battery
(CB) with booster cables: connect the + pole of AB to the + pole of CB,
then connect the - pole of CB to the mass of the unit. Disconnect in the
reverse order.