Suitable for B737 Aircraft Forward and Aft Doors on Series 300-500
General specification
The Steps have a fixed lower stairway and top-platform. The
stairway is mounted on a welded steel-section chassis-frame.Construction is robust but is also light in design - saving
time and effort when manually manoeuvring the Steps up to, or away
from, the aircraft.The step treads and top-platform walking-area are surfaced with
grip-faced aluminium tread-plate.Sliding side-rails with hand-operated spring-bolts at both sides
of the top-platform to facilitate opening the aircraft doors with
the Steps interfaced with the Aircraft.
A pivoting-section is fitted at the leading edge of the
top-platform to compensate with fuselage contours.Rubber buffering is fitted to the top-platform pivoting-section
and to the leading edges of the sliding side-panels.The standard unit has tubular-steel side / hand
rails with a mid-rail and steel-mesh panel, fitted to both sides of
the stair-flight. Full solid-sheet steel panels are fitted to the
sliding rails at each side of the top-platform.Steering is turntable-type through a
ball-bearing ring, controlled by the tow-bar. Tow-bar
has a 50mm diameter towing-eye and grip-handle to assist coupling.
Four
wheels with pneumatic tyres, fitted on stub-axles. Each stub-axle is
individually mounted for easy and economical maintenance.
Parking-brake - operating on front steering wheels, actuated by
raising the tow-bar.A tubular-steel rail is fitted across the front end of the
chassis, providing a conveniently positioned hold for pushing and
pulling. Four manual wind-down stabiliser jacks are fitted to the sides of
the chassis-frame.
Standard Finish
Chassis-Frame, Steering-Turntable,
Tow-Bar and Front-Rail are Galvanised to ISO1461. All other sections
and panels are Painted in a single Corporate colour. High-visibility
(red 'day-glo' painted) Markings, are applied to front/rear
chassis corners and sides of tow-bar.
Options / Extras
- Puncture-prevention to the pneumatic tyres (by foam-filling).
- Alternative type Stabiliser Jacks.
- Special Corporate or Identification markings.
- Additional Visibility markings.
- Plastic covering to handrails.
- Solid-sheet panels on the stair-flight side-rails (instead of
mesh-panels).
- Stairway illumination.
Dimensions:
- Top Platform Height: 2.52m (99.20 inches)
- Top Platform Length: 1.40m
(55.00 inches)
- Step-Tread details:
- Step Rise: 196mm (7.716 inches)
- Step Length: 250mm (9.842 inches)
- Step Width: 1020mm (40.157 inches)
- Number of Steps (including top-platform): 13
- Width inside handrails (on stair-flight): 1030mm (40.55 inches)
- Width inside handrails (on top-platform): 1340mm (52.755 inches)
Overall dimensions* of the fully-assembled unit:
- Width: 1.89m (74.40 inches)
- Length: (Tow-bar up and parking-brake applied): 4.48m (176.38 inches)
- Height: 3.53m (138.98 inches)
Weight: 760kgs
* Alternative overall dimensions for shipping - Can be achieved by some dismantling, as follows:
- Height: (Top-Platform Sliding-Panels, only, removed) = 3.415m (134.45
inches)
- Height: (Top-Platform Sliding-Panels and Stairway Side-Rails, removed)
= 2.6m (102.36 inches)
- Height: (Bottom ends of Stairway Support-Frame unbolted, Bottom ends of
Stairway Side-Rails bolted, Whole Stairway lowered to rest on the front
Push-Pull Rail) = 2.21m (87.00 inches)
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