MIL-T-13291F
3.2.7 Mercury restriction. The hot-dip tank shall not contain mercury or
mercury compounds nor be exposed to free mercury during manufacture.
3.2.8 Asbestos restriction. Asbestos and materials containing asbestos
shall not be used on or in the hot-dip tank.
3.2.9 Environmental protection. The hot-dip tank shall be so designed and
constructed that, under the operating, service, transportation, and storage
conditions described herein, the hot-dip tank shall not emit materials
hazardous to the ecological system as prescribed by Federal, state, or local
statutes in effect at point of installation (see 6.4).
3.2.10 Lubrication. Means shall be provided to insure adequate lubrication
for all moving parts.
Recirculating lubrication systems shall include a
filter which is cleanable or replaceable. Each lubricant reservoir shall have
means for determining fluid level. All oil holes, grease fittings, and filler
caps shall be accessible.
3.2.11 Safety devices. Each hot-dip tank shall be furnished with safety
Parts which are hazardous to the operator shall be guarded.
devices.
All parts subjected to
Protection against electric shock shall be provided.
high temperature shall be insulated, fully enclosed, or guarded to preclude
Type III, class C indirectly heated tanks
injury to operating personnel.
shall be provided with means for preventing heat transfer fluid temperature in
excess of 625°F. Except as otherwise specified by the procuring activity, the
tank shall comply with the standards promulgated under OSHA 2206 applicable to
the tank itself. Exceptions and additional requirements for safety and health
shall be as specified (see 6.2.1 and 6.4).
3.2.12 Interchangeability. To provide for replacement of worn parts, all
parts shall be manufactured to definite dimensions and tolerances.
3.3 Construction. The hot-dip tank shall be constructed of parts which are
new, without defects, and free of repairs. The structure shall be capable of
withstanding all forces encountered during operation of the hot-dip tank to
its maximum rating and capacity without permanent distortion.
3.3.1 Castings and forgings. All castings and forgings shall be free of
No processes such as welding, peening, plugging, or
scale and mismatching.
filling with solder or paste shall be used for reclaiming any defective part.
3.3.2 Welding, brazing, or soldering. Welding, brazing or soldering shall
None of these
be employed only where specified in the original design.
operations shall be employed as a repair measure for any defective part.
3.3.3 Fastening devices. All screws, pins, bolts, and other fasteners
Fastening
shall be installed in a manner to prevent change of tightness.
devices subject to removal or adjustment shall not be swaged, peened, staked,
or otherwise permanently installed.
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