(3) After assembly, when using either new or
It is easier to disassemble the pump parts from the
engine than it is to remove the entire pump assembly
used parts, recheck the clearance; it must be 0.010 to
before starting disassembly. If the pump is mounted on
0.020 inch (0.025 to 0.050 cm). Check the impeller
the engine, disassemble it per paragraph 5-2 for seal
shaft for free rotation. It must turn freely without
replacement. Then remove the bearing housing from the
catching or binding. If binding is evident, disassemble
engine and disassemble it. If the pump assembly was
removed from the engine per paragraph 2-9, proceed as
the pump and correct the condition.
(4) Install the assembled pump and bearing
housing onto the engine and chassis (para 2-9).
the assembled pump
bearing housing from the engine and chassis (para 2-9).
5-4. Bearing Housing
(2) Disassemble the centrifugal pump from
the bearing housing (para 5-3).
assembly in the sequence indicated in figure 5-2.
Figure 5-2. Bearing housing, exploded view.
b. Cleaning and Inspection.
Clean all parts in a well-ventilated area.
(1) Discard and replace all seals, gaskets,
Avoid inhalation of solvent fumes and
prolonged exposure of skin to cleaning
(2) Clean the ball bearings as directed in
solvent. Wash exposed skin thoroughly.
Dry cleaning solvent (Fed. Spec. P-D-680)
used to clean parts is potentially dangerous
to personnel and property. Do not use