GENERATOR SET TEST AND INSPECTION AFTER REPAIR
The activity performing the repair or overhaul is
erator set must perform those tests and inspections
responsible for the performance of all applicable
required by the applicable component or system re-
tests and inspections specified herein. Activities
performing maintenance on any portion of the gen-
a. All material, repair parts, assemblies, com-
ponents, welding, refinishing and other workman-
ship shall be sampled in accordance with MIL-STD-
105D to assure compliance with standards estab-
lished in this manual.
b. overhaul inspection procedures for disassem-
bled components and subassemblies are contained
throughout the manual where applicable. All data
necessary to determine serviceability of each com-
ponent or subassembly such as dimensional data,
fits, tolerances, and surface finish information is
c. Used components and repair parts recovered
as products of disassembly will be examined 100%
by the activity performing the repair to determine
a. Using the visual and operational check list
(Table 8-1), visually inspect and operationally test
the generator set for a minimum of four hours as
(1) 1/4 hour warm up.
(2) 1 hour 1/2 load at .8 power factor-.
(3) 2-1/4 hours full load at .8 power factor.
(4) 1/4 hour 125% load at .8 power factor.
(5) 1/4 hour idle.
b. During the test period, the following oper-
ational checks will be made.
(1) The proper operation of all components
under no load and full capacity load conditions.
(2) Proper function and adjustment of all in-
struments, controls and gages.
( 3 ) O v e r h e a t i n g
(4) Record voltage, current, power, factor, fre-
quency and temperature readings at the above
(5) Check operation of control and protective
the test run periods are completed and the load
gradually removed, shut down the unit, after the 1/
4 hour idle period.
(6) Oil and fuel.
If during the operational test, exces-
sive noise or vibration is observed or
any overheating or malfunctions
occur which may cause damage to the
equipment, stop operation immedi-
ately until necessary repairs are
(7) If the malfunction is minor and will not
damage the generator set, the tests may continue
and defects corrected upon-completion of tests.
(8) Inspect f o r p r o p e r f u n c t i o n i n g , c o m -
ponents which have been overhauled or repaired.
(9) Presence of one or more defects shall be
cause for rejection until acceptable repair has been
made. If repair is required to a major component, re-
equipment while conducting the test run and when
peat the entire operational test.