HALL Technical Services, LLC
T B - M A X 9 T O W B A R M A N U A L
Page 5
Towing Requirements chart to obtain tractor draw bar pull and total wheel traction requirements
based on aircraft and environmental conditions.
•
Boeing 737-MAX8 Maximum Takeoff Weight = 181,200 lbs
•
Category 2 Tow Tractor is recommended.
Category
Aircraft Maximum Takeoff Weight
Tractor Draw Bar Pull
1
Up to 50,000 kg (110,000 lbs.)
14,000 kg (8,800 lbs.)
2
Up to 150,000 kg (330,690 lbs.)
212,000 kg (26,455 lbs.)
3
Up to 260,000 kg (573,196 lbs.)
318,000 kg (39,683 lbs.)
4
More than 260,000 kg (573,196 lbs.)
440,000 kg (88,184 lbs.)
Source: IATA "Airport Handling Ground Support Equipment" Specification AHM 955: "Functional Specification for an Aircraft Tractor"
3.4.
Attach towbar to aircraft first, then to tractor.
3.5.
Towbar should be horizontal to ground or up to 2" (5cm) higher at the aircraft end.
3.6.
Do not exceed a 90 degree angle between towbar and pushback tractor. Damage to
towbar or aircraft can occur.
3.7.
Always start a pushback with the tractor in-line with the towbar.
3.8.
Attach the Towbar to the Aircraft
3.8.1.
First check that the towbar head handle is in the OPEN position.
3.8.2.
Line up towbar to nose pin of aircraft and slide head under the nose pin.
3.8.3.
Rotate the handle to slide the locking plate over the nose pin into the LOCK
position.
“LEFT IS LOCKED”.
Verify auto safety latch is latched. The head can only
be disengaged by operation of the handle.
