Passenger Stairway PS-813B/E Boeing | 12
SECTION 1 - PROCEDURES, SPECS & CAPABILITIES
has a 10–micron replaceable canister. It is located at the front of the
hydraulic tank.
1.1.4 | Electrical System
The electrical system is a 12 VDC system used for illuminating the stairway
and powering the stairway engine electrical starter. Major electrical
components are described below. See Figure 1.1.4 for electrical schematic.
COMPONENT
DESCRIPTION
Battery Charger
The battery charger is provided for maintaining the
batteries at peak levels. The battery charger has a 15
amp. maximum output and an automatic charging
rate. The charger receives 120 VAC current through a
power cord on the charger.
Batteries
The two 6V marine deep cycle batteries provide
power for the electrical lighting and the engine
electric starter. The batteries are located in plastic
battery boxes. They are kept charged by a battery
charger (located in an adjacent battery box) that has
a rated capacity of 220 amp./hr. at 32˚F.
Fuse
The 30 amp. mini fuse protects the lights circuit from
overloads. The fuse is located inside a plastic fuse
holder near the hydraulic motor.
Circuit Breaker
A 80 amp. re-settable circuit breaker protects
the engine start circuit from overloads. It is
located on the chassis frame near the batteries.
Lighting Control
Switch
The LIGHT ON/OFF control switch (toggle) for
the stairway, platform and A-frame lights is
mounted on the primary control station.
Alternator
The engine alternator provides current to the
batteries which keep them from being depleted
during stairway operations. The engine on this
unit is equipped with a heavy duty 18 amp.
alternator and rectifier.
1.1.4.1 | Lighting
COMPONENT
DESCRIPTION
Stairway Lights
The stairway lights mounted in the upper and lower
stairs side panels illuminate the stairway during
night operations.
Platform Lights
The two platform lights faired into the front of the
platform illuminate the platform during nighttime
operations.
NOTE:
Electrical power for the stair-
way is provided by two 6 V
deep cycle batteries, which are
kept charged by a battery char-
ger. The charger operates when
plugged into an external 120
VAC power source. When the
engine is running, the engine
alternator helps keep the bat-
teries from becoming depleted.
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...
