Nilfisk SC800 ST User Manual

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Service Manual: SC750, SC800, SC 750 ST, SC800 ST

Form Number 56043150 Page 61

Removal and Installation

Batteries

If the set of baeries has 50 or more cycles on them, do not put a new baery into the set. Either replace with all new

baeries or use a good used baery. Baery maintenance requirements change as they age. As they age they usually

require longer charging me and a higher nish rate. The newer baery mixed in with old baeries will end up being

overcharged, which will cause it to fail prematurely.

WARNING!

Use extreme cauon when working with baeries. Sulfuric acid in baeries can cause severe injury if allowed to contact

the skin or eyes. Explosive hydrogen gas is vented from the baeries through openings in the baery caps. This gas can

be ignited by any electrical arc, spark or ame. Do not install any lead-acid baery in a sealed container or enclosure.

Hydrogen gas from overcharging must be allowed to escape.

When servicing baeries

• Remove all jewelry

• Do not smoke

• Wear safety glasses, rubber gloves and a rubber apron

• Work in a well-venlated area

• Do not allow tools to touch more than one baery terminal at a me

• ALWAYS disconnect the negave (ground) cable rst when replacing baeries to prevent sparks.

• ALWAYS connect the negave cable last when installing baeries.

CAUTION!

Electrical components in this machine can be severely damaged if the baeries are not installed and connected properly.

Only Nilsk-Advance, a qualied electrician, or the baery manufacturer should install baeries.

1. Empty the recovery tank and p it up.

2. Turn the key switch o and disconnect the main baery pack connector.

3. Remove the baery cables.

a. Do not allow metal tools to connect between baery cables or posts.

b. Prevent cable ends from touching other cable ends or posts.

4. Remove baery.

5. Install baery.

6. Reconnect baery cables making sure that they are connected properly. Refer to the diagram molded into the

lower side of the recovery tank.

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Nilfisk SC800 ST Heavy-Duty Cleaning