Schumacher PSW-22 owner manual DC Connection Precautions

3.6Determine the voltage of the battery by referring to the vehicle owner’s manual and make sure that the output voltage selector switch is set to the correct voltage. If the charger has an adjustable charge rate, charge the battery in the lowest rate first.

3.7Make sure that the charger cable clips make tight connections.

4.CHARGER LOCATION

RISK OF EXPLOSION AND CONTACT WITH

BATTERY ACID.

4.1Locate the charger as far away from the battery as the DC cables permit.

4.2Never place the charger directly above the battery being charged; gases from the battery will corrode and damage the charger.

4.3Do not set the battery on top of the charger.

4.4Never allow battery acid to drip onto the charger when reading the electrolyte specific gravity or filling the battery.

4.5Do not operate the charger in a closed-in area or restrict the ventilation in any way.

5.DC CONNECTION PRECAUTIONS

5.1Connect and disconnect the DC output clips only after setting all of the charger switches to the “off” position (if applicable) and removing the AC plug from the electrical outlet.

Never allow the clips to touch each other.

5.2Attach the clips to the battery and chassis, as indicated in sections 6 and 7.

6.FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE.

A SPARK NEAR THE BATTERY MAY CAUSE A

BATTERY EXPLOSION. TO REDUCE THE RISK

OF A SPARK NEAR THE BATTERY:

6.1Position the AC and DC cables to reduce the risk of damage by the hood, door and moving or hot engine parts. NOTE: If it is necessary to close the

hood during the charging process, ensure that the hood does not touch the metal part of the battery clips or cut the insulation of the cables.

6.2Stay clear of fan blades, belts, pulleys and other parts that can cause injury.

6.3Check the polarity of the battery posts. The POSITIVE (POS, P, +) battery post usually has a larger diameter than the NEGATIVE (NEG, N, -) post.

6.4Determine which post of the battery is grounded (connected) to the chassis. If the negative post is grounded to the chassis (as in most vehicles), see step 6.5. If the positive post is grounded to the chassis, see step 6.6.

6.5For a negative-grounded vehicle, connect the POSITIVE (RED) clip from the battery charger to the POSITIVE (POS, P, +) ungrounded post of the battery. Connect the NEGATIVE (BLACK) clip to the vehicle chassis or engine block away from the battery.

Do not connect the clip to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.

6.6For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from the battery charger to the NEGATIVE (NEG, N, -) ungrounded post of the battery. Connect the POSITIVE (RED) clip to the vehicle chassis or engine block away from the battery. Do not connect the clip to the carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine block.

6.7Connect charger AC supply cord to electrical outlet.

6.8When disconnecting the charger, turn all switches to off, disconnect the AC cord, remove the clip from the vehicle chassis and then remove the clip from the battery terminal.

6.9See CALCULATING CHARGE TIME for length of charge information.

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