Service Manual: SC750, SC800, SC 750 ST, SC800 ST
Form Number 56043150 Page 49
Removal and Installation
Batteries
If the set of baeries has 50 or more cycles on them, do not put a new baery into the set. Either replace with all new
baeries or use a good used baery. As baeries age, their maintenance requirements change. As they age they usually
require longer charging me and a higher nish rate. The newer baery mixed in with old baeries will end up being
overcharged, which will cause it to fail prematurely.
WARNING!
Use extreme cauon when working with baeries. Sulfuric acid in baeries can cause severe injury if allowed to contact
the skin or eyes. Explosive hydrogen gas is vented from the baeries through openings in the baery caps. This gas can
be ignited by any electrical arc, spark or ame. Do not install any lead-acid baery in a sealed container or enclosure.
Hydrogen gas from overcharging must be allowed to escape.
When servicing baeries
• Remove all jewelry
• Do not smoke
• Wear safety glasses, rubber gloves and a rubber apron
• Work in a well-venlated area
• Do not allow tools to touch more than one baery terminal at a me
• ALWAYS disconnect the negave (ground) cable rst when replacing baeries to prevent sparks.
• ALWAYS connect the negave cable last when installing baeries.
CAUTION!
Electrical components in this machine can be severely damaged if the baeries are not installed and connected properly.
Only Nilsk-Advance, a qualied electrician, or the baery manufacturer should install baeries.
1. Empty the recovery tank and p it up.
2. Turn the key switch o and disconnect the main baery pack connector.
3. Remove the baery cables.
a. Do not allow metal tools to connect between baery cables or posts.
b. Prevent cable ends from touching other cable ends or posts.
4. Remove baery.
5. Install baery.
6. Reconnect baery 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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