Bi-ennial Locomotive Maintenance (every 2 years)

o. Traction Motor Support Bearing Lubricators. Inspect for proper operation and

lubricate as required.

p. Traction Motors and Traction Generators. Blow out with clean dry air; inspect

commutator, brush holders, insulators, bands, and connections and resurface commutator when

required.

NOTE: AN ACTIVITY THAT DOES NOT HAVE THE CAPABILITY TO REPAIR

DEFECTS DISCOVERED DURING AN ANNUAL INSPECTION SHALL DO THE

MOST ECONOMICAL OF THE FOLLOWING: REPLACE THE NEXT HIGHER

COMPONENT WHICH WILL ELIMINATE THE DEFECT OR REFER TO A DEPOT

LEVEL REPAIR FACILITY. IN NO CASE SHALL A LOCOMOTIVE BE ALLOWED

TO OPERATE WITH A DEFECT THAT DEGRADES SAFETY.

Bi-ennial Locomotive Maintenance (every 2 years).

During biennial inspections of locomotives, maintenance personnel shall inspect all items required

for the annual inspection, manufacturer's recommendations for annual inspections and the

following:

a. Air brake Systems. All valve portions in the air brake system shall be removed,

cleaned and serviced. Use CFR 49, Part 229.29 as a guideline.

b. Main Reservoir Air Tank. For main reservoir air tanks that do not have telltale holes

drilled on the surface, a hydrostatic pressure test of 175 psi and a hammer test over the entire tank

surface shall be conducted every two years, not including aluminum tanks. Use CFR 49, Part

229.31 as a guideline.

Locomotive Maintenance General

Requirements.

All components used in the repair or replacement of any part of a locomotive shall be compatible

with the part being replaced.

Fan openings, exposed gears and pinions, exposed moving parts of mechanisms, pipes

carrying hot gases and high voltage equipment, switches, circuit breakers, contractors,

relays, grid resistors, and fuses shall be in non-hazardous locations or equipped with

guards to prevent personal injury.

Exhaust stacks shall be of sufficient height or other means provided to prevent entry of

products of combustion into the cab or other compartments under usual operating

conditions.

Battery compartments shall be vented to prevent the accumulation of explosive gas.

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