(3) Open only those valves required to perform a
for the 4-inch low-head pump (M967, M967A1, M969, and
specific operation. All other valves must remain closed.
M969A1) and 65 psi for the 3-inch high pressure pump
(M970 and M970A1).
Close all valves again after completing the operation.
Before Operation. Before starting engine, the
following checks and services should be performed:
Prior to Starting Engine. The following precautions
must be taken:
fuel supply. Fill with No. 1 diesel fuel (item 15,
for operation below 32F. Use No. 2 diesel fuel (item 14,
Before and after fuel servicing operations, all
approximately 4 gallons.
valves are to be in the closed position. Failure
to follow this warning could result in
excessive spillage and create a fire hazard.
If oil dipstick reads L (low), add one quart to bring oil to F
(full) mark. If below L mark, add one quart at a time until
dipstick reads F. For oil specifications, see figures 3-1
(1) Make sure all manually operated valves arc
closed. This is a must before either starting or ending any
fuel servicing operation.
(3) Check air cleaner restriction indicator
(fig. 2-10) for
a red band showing
in indicator window.
(2) To prevent collapse of tank when filling or
red band showing indicates that the engine air cleaner is
emptying tank, ensure that the top vent is working
dirty. Clean or replace the air cleaner element (para 3-18).