Volvo D 20 Operator's Manual download pdf (Page 44)

Maintenance: Electrical system

Battery. Maintenance

WARNING! Risk of fire and explosion. Never

allow an open flame or electric sparks near the

battery or batteries.

WARNING! Never mix up battery positive and

negative terminals. This may cause sparks and

an explosion.

WARNING! The battery electrolyte contains

extremely corrosive sulfuric acid. Protect your

skin and clothes when charging or handling

batteries. Always use protective goggles and

gloves. If battery electrolyte comes into contact

with unprotected skin wash off immediately

using plenty of water and soap. If battery acid

comes into contact with the eyes, flush immedi-

ately with plenty of water and obtain medical

assistance without delay.

Connecting and disconnecting

First connect the red battery lead + to the battery +

terminal. Then connect the black battery lead - to the

battery - terminal.

When disconnecting the battery, disconnect the -lead

(black) first and then the + lead (red).

Cleaning

Keep batteries dry and clean. Oxidation or dirt on the

battery and battery terminals can cause short-circuits,

voltage drop and discharge especially in damp

weather. Clean the battery terminals and leads to

remove oxidation using a brass brush. Tighten the

cable terminals well and grease them with terminal

grease or petroleum jelly.

Topping up

The electrolyte should be 5 - 10 mm over the plates in

the battery. Top up using distilled water if necessary.

Charge the battery after topping up for at least 30

minutes by running the engine at fast idle. NOTE!

Certain maintenance-free batteries have special

instructions which must be followed.

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Volvo D 20 Operator's Manual Page 44