BOMBARDIER BD-700 GLOBAL EXPRESS
BD-700 TOWING INFORMATION
Introduction
Towing (Refer to Figure 1 and Figure 2.)
General Description
You can tow or push the aircraft with a towing tractor when it is not possible to move the aircraft
with its power. You can tow the aircraft with a tow bar that attaches to the axle of the nose
landing gear. A minimum of two persons are necessary to tow the aircraft. Five persons are
necessary to tow the aircraft in small areas.
You can push or tow the aircraft with the tow bar connected to the axle of the nose landing gear
and to the tow tractor. The nose wheel steering system must be off. You must disconnect the
steering torque arms when you tow or push the aircraft to let the nose wheel turn freely. When
you disconnect the steering torque arms, you can turn the nose wheel 360 degrees.
You can push back the aircraft when you connect the steering torque arms or when you
disconnect the steering torque arms. You connect the tow bar to the axle of the nose landing gear
and to the tow tractor. The nose wheel steering system must be off. The turn angle of the nose
wheel must not be more than 70 degrees when you connect the steering torque arms.
The equipment necessary for a towing operation are as follows:
Tow tractor
Main wheel chocks
Tow bar - standard or collapsible
Two headsets with extension cords
BOMBARDIER BD-700 GLOBAL EXPRESS
You can tow the aircraft with the standard tow bar or with the collapsible tow bar which you find in the aft
equipment compartment. The collapsible that you extend and lock with a pin to prepare the tow bar
for use. Both tow bars
tow bar is a telescopic type attach to the nose wheel with a tow head that engages with the holes
in the ends of the nose wheel axle.
A shear pin and shear bolt in the tow bar give the aircraft protection from too much tow force.
The shear pin will break if the push or pull force is more than 10,850.00 Ibf. in. (4,921.53 Nm).
The shear bolt will break if the turning force is more than 40,000.00 Ibf in (4,520 Nm).
Training Information Points
The minimum towing crew has two persons. One person operates the towing vehicle and one
person operates the aircraft brakes in the flight compartment. You use the aircraft brakes only in
an emergency.
When you tow the aircraft in an area where the space is small, one person must be at the end of each wing.
They make sure you give sufficient distance to
A.
Reference Information
REFERENCE
B.
DESIGNATION
TASK 24-00-00-910-801
Electrical/Electronic Safety Precautions
TASK 32-44-00-910-801
Set the Parking Brake
TASK 32-44-00-910-802
Release the Parking Brake
Tools and Equipment
REFERENCE
DESIGNATION
GSE 09X-10-01
Towbar Tractor
GSE 09X-10-02
Towbar, Air Transportable
GSE 10X-11-04
Wheel Chocks, Rubber
GSE 23X-51-01
Headset With Mic, Ground Crew
GSE 23X-51-02
Cord, Headset Extension
Commercially Available
Light Wand
BOMBARDIER BD-700 GLOBAL EXPRESS
prevent contact with other objects or aircraft. When you push the aircraft rearward, a person must be at the
tail to make sure that the aircraft tail does not hit other objects or aircraft.
NOTE: For ground support equipment (GSE), refer to the Illustrated Tool and equipment manual
(ITEM)
C. Job Set-Up
(1) Obey all the safety precautions that follow during the towing procedure:
(a) Obey all the electrical/electronic safety precautions.
(TASK 24-00-00-910-801).
(b) Make sure that the tires are correctly inflated.
(c) Make sure that the nose landing-gear (NLG) lockpin is installed.
(d) Make sure that the main landing-gear (MLG) lockpins are installed.
WARNING:
STAY AWAY FROM THE TORQUE LINK WHEN YOU RELEASE THE HANDLE.
THE TORQUE LINK IS SPRING-LOADED AND WILL MOVE UP QUICKLY WHEN
YOU PULL THE RELEASE HANDLE. IF YOU DO NOT OBEY THIS SAFETY
PRECAUTION, YOU CAN CAUSE INJURY TO PERSONS.
(e) Disconnect the torque links as follows:
1. Pull the two quick-disconnect handles at the same time.
2. Disconnect the top torque link from the lower torque link.
(f) Disarm the nose wheel steering system as follows:
1.In the flight compartment, on the ELECTRICAL control panel, set the BATT
MASTER switch to ON.
2.In the flight compartment, on the LDG GEAR control panel, set the NOSE
STEER switch to OFF position.
3. In the flight compartment, on the ELECTRICAL control panel, set the BATT
MASTER switch to OFF.
BOMBARDIER BD-700 GLOBAL EXPRESS
(g) Make sure that the landing gear selector-handle is in the DN position.
(h) Make sure that all external servicing equipment is disconnected from the aircraft.
(i)Make sure that the ground wire is disconnected from the aircraft.
(0)The minimum number of persons in the crew are as follows:
1. When you tow the aircraft in open areas, two persons are necessary.
NOTE: One person operates the vehicle.
The other person is the brake operator and operates the brakes in the flight
compartment.
2. If you tow the aircraft in confined areas, three other persons are necessary.
NOTE: Two persons, one at each wing end, make sure that there is sufficient
clearance for the wing ends. The other person makes sure that the tail of the
aircraft has sufficient clearance.
(k) Make sure the person who operates the vehicle can hear, speak to or get signals from the
other persons on the crew.
NOTE: The person who operates the tow vehicle controls the tow operation.
(I) If you tow the aircraft in low visibility, the ground crew must have light wands to give
signals.
D. Procedure - Refer to Figure 201.
CAUTION: OBEY THE PRECAUTIONS THAT FOLLOW WHEN YOU TOW THE AIRCRAFT:
- MAKE SURE THAT THE TORQUE LINKS OF THE NOSE LANDING GEAR ARE
DISCONNECTED.
-
DO NOT TOW AT MORE THAN 15 MPH (24 KM/H).
BOMBARDIER BD-700 GLOBAL EXPRESS
-
DO NOT PUSH REARWARD AT MORE THAN 3 MPH (5 KM/H).
DO NOT USE THE AIRCRAFT BRAKES TO STOP THE AIRCRAFT
UNLESS THERE IS AN EMERGENCY.
KEEP THE TURNS AS LARGE AS POSSIBLE.
MAKE ALL THE CHANGES SLOWLY TO THE SPEED OR THE
DIRECTION.
IF YOU DO NOT OBEY THESE PRECAUTIONS, DAMAGE TO THE EQUIPMENT CAN OCCUR.
(1) To tow the aircraft, do the procedure that follows:
WARNING: MAKE SURE THAT THE FOUR FLYAWAY BOXES ARE INSTALLED
IN THE AIRCRAFT. IF YOU DO NOT INSTALL ALL THE NECESSARY BOXES, THE
AIRCRAFT WILL BE IN A TAIL-HEAVY CONDITION. THIS CAN CAUSE INJURIES
TO PERSONS AND DAMAGE TO THE EQUIPMENT.
CAUTION: DO NOT TOW THE AIRCRAFT IF THE FLIGHT COMPARTMENT
WINDOWS ARE REMOVED. THE FLIGHT COMPARTMENT WINDOWS ARE
INTEGRAL PARTS OF THE STRUCTURE. IF YOU TOW THE AIRCRAFT WHEN THE
FLIGHT COMPARTMENT WINDOWS ARE REMOVED, DAMAGE TO THE
EQUIPMENT CAN OCCUR.
CAUTION:
DO NOT TOW THE AIRCRAFT IF THE STRESSED FLOOR PANEL IS REMOVED.
THE STRESSED FLOOR PANEL IS AN INTEGRAL PART OF THE STRUCTURE. IF YOU TOW
THE AIRCRAFT WHEN THE STRESSED FLOOR PANEL IS REMOVED, DAMAGE TO THE
EQUIPMENT CAN OCCUR.
NOTE: Towing procedure is permitted with cabin windows removed.
NOTE: Towing the aircraft with the main cabin door open is permitted as long as you obey to the
speed limit and you avoid sudden stops and starts.
BOMBARDIER BD-700 GLOBAL EXPRESS
(a) Install the four flyaway boxes of 1200 lbs each (545 kg) inside the aircraft.
WARNING: DO NOT TOW THE AIRCRAFT AT A SPEED OF MORE THAN 5 MPH (8 KM/H) WITH
THE GROUND-HANDLING BALLAST BOXES INSTALLED IN THE AIRCRAFT. THE AIRCRAFT
WILL BE IN A TAIL-HEAVY CONDITION. IF YOU TOW THE AIRCRAFT AT HIGHER SPEEDS, IT
CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE EQUIPMENT.
(b) If the four fly away boxes are not available, install the two fly away boxes with the two groundhandling ballast boxes inside the aircraft.
(c) If necessary, connect a headset to the service interphone unit.
(d) In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch to ON.
(e) Make sure the brake accumulator No. 3 is pressurized to 500:t 80 psi (3447.331551.57 kPa).
NOTE: You can pull the parking brake handle six times before you must pressurize the brake accumulator
No. 3 again.
(f) In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch to OFF.
(g) Set the parking brake (TASK 32-44-00-910-801).
(h) Install the tow bar on the nose gear.
(i) Engage the axle engagement pins on the towing head with the holes in the ends of the nose gear axle.
(j) Connect the tow bar to the towing vehicle.
(k) Close the passenger door.
(I) Remove all the wheel chocks.
(m) Release the parking brake (TASK 32-44-00-910-802).
(n) Tow the aircraft forward at a speed of not more than 15 mph (24 km/h).
NOTE: Control the towing speed with only the towing vehicle. Do not stop the aircraft in a turn if
it is not necessary.
(o) If the ground-handling ballast boxes are installed inside the aircraft, tow
the aircraft at a speed of not more than 5 mph (8 km/h).
(p) If required, push back the aircraft at a speed of not more than 3 mph (5 km/h).
BOMBARDIER BD-700 GLOBAL EXPRESS
(q) If the aircraft is turned before it is parked, move it forward or rearward in a straight line for a short
distance.
NOTE: This is necessary to remove twist forces from the landing gear before you stop the aircraft.
(r) When the aircraft is in the correct position, stop the aircraft with the towing vehicle.
(s) Set the parking brake (TASK 32-44-00-910-801).
WARNING: MAKE SURE THE WHEEL CHOCKS ARE PUT AT THE NOSE AND MAIN
WHEEL/TIRE ASSEMBLIES. MOVEMENT OF THE AIRCRAFT CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO THE EQUIPMENT.
(t) Put the wheel chocks forward and aft of both the NLG and the MLG wheel assemblies.
(u) Release the parking brake (TASK 32-44-00-910-802).
(v) Disconnect the tow bar from the towing vehicle.
(w) Move the tow bar by hand to align the nose landing gear in a longitudinal direction.
(x) Connect the torque links as follows:
1. Pull and hold the two quick-disconnect handles fully out.
2. Align the pivot of the top torque link with the pivot of the lower torque link.
3. Release the quick-disconnect handles.
4. Make sure that the two quick-disconnect pins engage fully with the
pivot of the lower torque link.
(y) Disconnect the tow bar from the nose landing gear.
(z) Arm the nose wheel steering system as follows:
1. In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch
to ON.
2. In the flight compartment, on the LDG GEAR control panel, set the NOSE STEER switch to
ARMED position.
3. In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch
to OFF.
BOMBARDIER BD-700 GLOBAL EXPRESS
(aa) If necessary, disconnect the headset from the service interphone unit.
(ab) If the left wing tank contains more than 12,000 Lbs (5443 Kg) of fuel, do the steps that follow:
1. In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch
to ON.
2. On the overhead panel, on the FUEL control panel, push the L PRI PUMPS switch and make
sure that the OFF light goes off.
3. Let the left primary pumps operate for two minutes.
4. On the overhead panel, on the FUEL control panel, push the L PRI PUMPS switch and make
sure that the OFF light comes on.
5. In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch
to OFF.
(ac) If the right wing tank contains more than 12,000 Lbs (5443 Kg) of fuel, do the steps that follow:
1. In the flight compartment, on the ELECTRICAL control panel, set the BATT MASTER switch
to ON.
2. On the overhead panel, on the FUEL control panel, push the R PRI PUMPS switch and make
sure that the OFF light goes off.
3. Let the right primary pumps operate for two minutes.
4. On the overhead panel, on the FUEL control panel, push the R PRI PUMPS switch and make
sure that the OFF light comes on.
5. In the flight compartment, on the ELECTRICAL control panel, set the
BATT MASTER switch to OFF.
E. Close Out
1. Remove all tools, equipment and unwanted materials from the work area.
BOMBARDIER BD-700 GLOBAL EXPRESS
BOMBARDIER BD-700 GLOBAL EXPRESS
BOMBARDIER BD-700 GLOBAL EXPRESS