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PRE-TRIP INSPECTION
The pre-trip inspection should be performed before picking up any load.
This inspection is essential to anticipate and help minimize the possibility
of “over-the-road” problems. These checks take only a few minutes.
1. Place the unit’s main switch in the STOP (0) position.
2. Fuel - Drain any water and impurities from the sump of the
refrigeration unit fuel tank by opening the drain-cock located on the
bottom of the tank (if so equipped). Close the valve when only pure
fuel emerges. Check the fuel level in the tank, ensuring that the fuel
supply is adequate for unit operation. Refuel if necessary.
3. Belts - Check the belt tension by depressing the belt with your
thumb, near the center of the longest free run of each belt. Under
moderate pressure, each belt should deflect approximately 6mm to
13mm (1/4 inch to 1/2 inch). If the belts deflect more than this, they
should be tightened (loose belts may slip, generating heat and
reducing belt life). If the belts are too tight, they should be
loosened; tight belts can reduce bearing life.
4. Battery - On units equipped with serviceable batteries, the level of
the electrolyte in each of the cells should be checked. If the level is
low, distilled water should be added to the correct level. Most units,
however, are equipped with low or no maintenance batteries.
These should be inspected to ensure that the connections are
clean and tight, and the battery hold-down should be checked for
tightness.
5. Engine Oil - The engine oil should be checked last since it is
necessary for oil to drain from the block and into the oil pan to
obtain a correct reading. Remove the dipstick, wipe it off and re-
insert it fully into the engine block. Once again, remove the dip-stick
and observe the oil level; it should be somewhere between the full
and add marks. If it is below the add mark, add oil until the level is
correct.
Inspect battery cables for signs of wear, abrasion or
damage at every pre trip inspection and replace if nec-
essary. Also check battery cable routing to ensure that
clamps are secure and that cables are not pinched or
chafing against any components.
