Table 5-3 Direct and
Maintenance Troubleshooting (Continued)
TEST OR INSPECTION
ENGINE LACKS POWER (Continued)
Figure 5-131. Specific Gravity Test
Use distilled water or a good grade drinking water (excluding drinking water).
Remove the cell covers and check the electrolyte level. Add distilled water if the level is below
the top of the plates.
Check the specific gravity.
If the specific gravity is between 1.250 and 1.280, the cells are ok. Go to Step 8.
If the specific gravity is between 1.225 and 1.250, the cells are still in fair condition. Go to Step
If the specific gravity is below 1.150 in any one cell, replace the battery and go to Step 7e.
If the specific gravity in one cell is 0.050 more or less than the other cells and charging does not
bring the charge 50% charge, replace the battery and go to Step 9e.
Charge the battery.
If the battery does not hold a charge, replace the battery and go to Step 7e.
If the battery holds a charge, return the battery to the battery box and go to Step 7e.
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