SUB-SECTION 4A
HYDRAULIC SYSTEM
TROUBLESHOOTING CHARTS. The following charts are
four probable causes for a noisy pump. The causes are listed
arranged in five main catogories. The headings of each is an
according to the likelihood of occurrence or the ease of
checking it. The first cause is cavitation and the remedy is
effect which Indicates a malfunction in the system. For
"a". If the first cause does not exist, check for cause num-
example; if a pump is exceptionally noisy, refer to Chart I
ber 2, etc.
titled EXCESSIVE NOISE. The noisy pump appears in
Column A under the main heading. In Column A there are
Chart 1. Excessive Noise
4A-4