MIL-M-87977(USAF)
performance or reliablilty will be appreciably degraded by the accessible location.
In performing maintenance, if engineering reasoning or date determines the physical
or visual interface between items cannot be avoided, the item predicted to require
the most maintenance shall be located for best accessibility,
d. Permit maintenance with general-purpose tools and equipment normally
available commercially, Use of special purpose tools and equipment shall be subject
to approval by the procuring activity,
e. Minimumnumber of tools required for maintenance by design practices such
as reducing the variety of bolt head sizes to the practical Minimum.
f. Primary bolted structure. Welds shall be used only when there is no other
mechanical means to make a connection.
3.4.4 Drainage Provisions, The maintenance platform shall include provisions for
the continous drainage of water from the steps, platform, structural members and
other components. All drain holes shall have a minimum diameter of 0.25 inches.
3.4,5 Safety considerations. Means shall be provided to include, but be limited
to, safety features as noted below and contained elsewhere herein:
a. Warning plates. Warning plates shall be provided at proper locations as
required to prevent uunsafe conditions/operations .
b. Weight Limit Warning Information.
A warning plate shall be provided to
specify the maximum allowable weight on each step, the individual floors and the
entire maintenance platform.
c. Flooring Surfaces. All flooring surfaces including stair steps shall be
expanded metal material and shall meet the requirements of MIL-STD-1472. The
entrance corner of all the steps shall be coated with nonslip compound MIL-W-5044,
Type II, Class II, color FED-STD-595 number 37028. The compound w1ll be applied
from where the nonslip expanded metal ends to over the full corner radius,
d. Stability The maintenance platform must remain stable under all
conditions stated herein,
e. Reflectors,
Reflectorized tape shall be added on the stand in accordance
with T.O. 35-1-3, page 2-2, paragraph 2-20,
f.
Hoist Gears. Chain hoist exposed gears shall be covered, reference
MIL-STD-1472 para 5.13.7.2.1.
Stencils, Stencil `Maximum Towing Speed 5 MPH" on top of both tierod
g.
guards. The letters shall be at least one inch high. A stencil shall be added on
the main stair steps "WARNING STEEP STAIRS". Tire inflation stencil `Tire air
inflation XXX PSI- shall be located on the frame above each tire.
3.4.6 Mobility. Maintenance platform mobility shall be in accordance with
MIL-M-8090, Type I, Class 2, Group C, except as noted below:
a. Wheels or casters shall be located outside the frame and have pneumatic
tires. Tire size shall be at least 6.00-6.90 X 9. Minimum caster tire size will be
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