Jet H3655 Test Procedures/instructions

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H3655

500AMP CARBON PILE BATTERY TESTER
TEST PROCEDURES / INSTRUCTIONS

WARNING:

1. Working in the vicinity of a lead acid battery is dangerous. Batteries generate

explosive gases during normal battery operation. It is of the utmost importance
that each time before using your tester, you read these instructions very
carefully.

2. To reduce risk of battery explosion, follow these instructions and those

published by the battery manufacturer and manufacturer of any equipment you
intend to use in the vicinity of the battery. Observe cautionary markings on
these items.

3. Do not expose the tester to rain or snow.

4. Do not operate tester with damaged cables-replace them immediately.

5. Do not operate tester if it has been damaged in any way. Take it to a qualified

auto technician for repair.

6. CARBON PILE LOAD IS ‘ON’ TO PREVENT BREAKAGE OF CARBONS

DURING SHIPMENT. BE SURE TO TURN LOAD ‘OFF’ BEFORE
CONNECTING TESTER TO BATTERY.

PERSONAL SAFETY PRECAUTIONS:

1. Someone should be within range of your voice or close enough to come to your
aid when you work near a lead acid battery.

2. Have plenty of fresh water and soap nearby in case battery acid contacts skin,
clothing or eyes.

3. Wear safety glasses and clothing protection.

4. If battery acid contacts skin or clothing, wash immediately with soap and water.
If acid enters eye, immediately flood eye with running cold water for at least ten
minutes and get medical attention immediately.

5. NEVER smoke or allow a spark or flame in vicinity of battery or engine.

6. Be extra cautious to reduce risk of dropping a metal tool onto the battery. It
could spark or short-circuit the battery or other electrical parts and could cause
an explosion.

7. Remove personal metal items such as rings, bracelets, necklaces and watches
when working with a lead acid battery. It can produce a short circuit current
high enough to weld a ring or the like to metal causing a severe burn.

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IMPORTANT:
BOTH JAWS OF EACH CLAMP MUST FIRMLY ENGAGE BATTERY

TERMINAL OR IT WILL NOT FUNCTION PROPERLY.

PREPARING TO TEST:

1.Be sure area around battery is well ventilated while battery is being tested. Gas

can be forcefully blown away by using a piece of cardboard or other
non-metallic material as a fan.

2.Clean battery terminals. Be careful to keep corrosion from coming in contact

with eyes.

3.Inspect the battery for cracked or broken case or cover. If so damaged, do not

use tester.

4.Add distilled water in each cell until battery acid reaches level specified by the

manufacturer. This helps purge excessive gas from cells. Do not overfill.

5.Make load tests only on battery above 60°F(16°C).

6.If necessary to remove battery from vehicle to test, always remove earth

terminal from battery first. Make sure all accessories in the vehicle are off to
ensure you do not cause an arc.

1. CALCULATE STATE OF CHARGE

A. Before a battery can be load tested, you MUST determine the state of charge.
B. The hydrometer is a great tester to show condition of each cell, but on

batteries with non-removable caps the voltmeter is your only choice to
determine state of charge.

C. The specific gravity readings of open vent batteries should not vary more than

50 points between cells. If the variance is more than 50 points, replace the
battery. The specific gravity should be at least 1.230 in all cells. If not, charge
the battery until 1.230 is obtained. In case the battery is very low, a longer
period of time for charging may be required. After charging, remove the
surface charge from the battery. If charging the battery will not bring the
charge to 1.230 then the battery should be replaced.

D. Maintenance free and sealed batteries have an indicator built into the battery

cover. The color of this indicator verifies the gravity condition of the battery:

○ If the green ball is visible, the battery is charged.

● If the indicator is dark and the green ball is not visible, the battery is

partially discharged.

◎ If the indicator is light yellow, the battery is low on fluid and near the end of

its useful life. DO NOT ATTEMPT RECHARGING OR TESTING IF THE

INDICATOR IS YELLOW.