Passenger Stairway PS-813B/E Boeing | 10
SECTION 1 - PROCEDURES, SPECS & CAPABILITIES
1.1.2.4 | Platform
The platform is part of the upper stairway and is welded to the upper
stairway side channels. The platform floor is fabricated from diamond
tread plate. Side panels on the platform slide back and forth on rollers
and can be latched in place by means of foot latches. Two platform
lights illuminate the platform during night operations. The front of the
platform has a rubber bumper to protect the aircraft. A 12” extension
and swivel assembly are to help final positioning and alignment of the
platform to the aircraft.
1.1.2.5 | Stabilizers
This unit is equipped with four stabilizer assemblies at the corners to
stabilize the stairway and to keep it locked in place. The stabilizers are
hydraulic cylinders with stabilizer pads at the bottom that are raised and
lowered hydraulically.
1.1.2.6 | Gasoline Engine
The engine which drives the hydraulic pump is a gasoline engine with an
electric starter. It receives fuel from an integral fuel tank located above
the engine. Engine controls are located on the engine.
1.1.3 | Hydraulic System
The hydraulic system (see Figure 1.1.3) provides hydraulic power to raise
and lower the upper stairway, A-frames and stabilizers. It consists of the
following components:
COMPONENT
DESCRIPTION
Hydraulic Tank
The hydraulic fluid tank is located on the side of the
chassis. The tank is provided with an in-tank fluid
strainer. A dipstick is incorporated into the tank fill
cap. A clean-out port is located on top of the tank. A
drain plug is located at the bottom of the tank.
Hydraulic Pump
The hydraulic pump provides hydraulic power to
operate the stairway, A-frame and stabilizer cylinders.
The hydraulic pump is an internal gear (rotor) pump
coupled to the gasoline engine output shaft. It
operates whenever the engine is running. The pump
draws hydraulic oil from the hydraulic tank.
Auxiliary Hand Pump
The hand pump is located adjacent to the hydraulic
control valve and is equipped with an extension
handle. The hand pump provides emergency hydraulic
power for operating the stairs, A-frames and stabilizer
cylinders if the engine-driven pump is disabled.
Summary of Contents for PS-813B/E
Page 6: ...Passenger Stairway PS 813B E Boeing 6 SECTION SECTION PAGE DATE REVISIONS PAGE...
Page 38: ...Passenger Stairway PS 813B E Boeing 38 FIG 1 1 PASSENGER STAIRWAY MODEL PS 813B E...
Page 39: ...Passenger Stairway PS 813B E Boeing 39 FIG 1 1 2 1 A FRAME...
Page 40: ...Passenger Stairway PS 813B E Boeing 40 FIG 1 1 3 HYDRAULIC SCHEMATIC...
Page 41: ...Passenger Stairway PS 813B E Boeing 41 FIG 1 1 3 1 PRIMARY CONTROL STATION...
Page 42: ...Passenger Stairway PS 813B E Boeing 42 FIG 1 1 4 ELECTRICAL SCHEMATIC...
Page 43: ...Passenger Stairway PS 813B E Boeing 43 FIGURE 1 2 1 2 PRIMARY CONTROL STATION...
Page 44: ...Passenger Stairway PS 813B E Boeing 44 FIGURE 2 1 7 1 LUBRICATION POINTS...
Page 45: ...Passenger Stairway PS 813B E Boeing 45 FIGURE 2 1 7 2 LUBRICATION POINTS...
Page 46: ...Passenger Stairway PS 813B E Boeing 46 FIGURE 2 1 7 3 LUBRICATION POINTS...
Page 47: ...Passenger Stairway PS 813B E Boeing 47 FIGURE 2 2 1 1 HYDRAULIC SCHEMATIC...
Page 48: ...Passenger Stairway PS 813B E Boeing 48 FIGURE 2 2 1 2 ELECTRICAL SCHEMATIC...
Page 49: ...Passenger Stairway PS 813B E Boeing 49 FIGURE 2 3 1 PRIMARY CONTROL VALVE...
Page 50: ...Passenger Stairway PS 813B E Boeing 50 FIGURE 2 3 3 ADJUSTMENT BOLTS...
Page 51: ...Passenger Stairway PS 813B E Boeing 51 FIGURE 4 3 1 PASSENGER STAIRWAY MODEL PS 813B E...
Page 54: ...Passenger Stairway PS 813B E Boeing 54 FIGURE 4 3 2 STAIRWAY CHASSIS ASSEMBLY...
Page 56: ...Passenger Stairway PS 813B E Boeing 56 FIGURE 4 3 3 UPPER STAIRS AND PLATFORM...
Page 58: ...Passenger Stairway PS 813B E Boeing 58 FIGURE 4 3 4 LOWER STAIRS ASSEMBLY...
Page 60: ...Passenger Stairway PS 813B E Boeing 60 FIGURE 4 3 5 STAIRWAY RATCHET ASSEMBLY...
Page 62: ...Passenger Stairway PS 813B E Boeing 62 FIGURE 4 3 6 A FRAME ASSEMBLY...
Page 64: ...Passenger Stairway PS 813B E Boeing 64 FIGURE 4 3 7 HYDRAULIC SYSTEM...
Page 67: ...Passenger Stairway PS 813B E Boeing 67 FIGURE 4 3 9 ELECTRICAL SCHEMATIC...
Page 69: ...Passenger Stairway PS 813B E Boeing 69 FIGURE 4 3 10 CONTROL STATION...
