Model: 01-1202-0000
Multi-Head Towbar
11/2006
−
Rev. 17
- 2 -
3.2
TOWBAR CHECKLIST (continued)
•
Inspect the towbar tube for cracks, gouges greater than 1/16 inch, and bends or deformities.
A damaged or bent towbar should not be used. Contact Tronair for replacement.
•
Check the casters to ensure the swivels operate freely and the bearings are not missing.
Replace if needed.
•
Ensure that the caster mounting fasteners are not loose or missing. Tighten or replace as
required.
•
Check the caster mounting plate and channel. If the caster mounting plate is bent or broken
or if the channel welds are broken, contact Tronair for repairs.
•
Inspect the lifting handle at the towing eye end. Replace or repair the handle if it is missing or
damaged. Ensure the mounting fasteners are not loose or missing. Tighten or replace as
required.
•
Check the towbar undercarriage. Inflate the pneumatic tires to the proper pressure; fix any air
leaks or replace if needed, ensure the wheels can rotate freely, wheel rims are not bent, and
tire axle is not bent. Ensure mounting fasteners are not loose or missing; tighten or replace
as required. Grease the tire axle every 90 days to 6 months.
•
Inspect towing head attachment ball loc pin. Verify that the factory supplied ball loc pin is
used; contact Tronair for replacement if required. Do not substitute without Tronair approval.
WARNING!
A damaged or bent towbar should not be used. Towbar should be repaired or replaced.
WARNING!
T
owbars should be used with category 1 tugs ONLY in accordance with AHM 995
"Functional specifications for an aircraft tractor" Using a category 2 or higher tug may
result in excessive loads and stresses being applied to the towbar and/or the aircraft.
These excessive loads may cause failure of the towbar which could cause damage to the
aircraft or personal injury.
3.3
USAGE PROCEDURE
3.3.1
Aircraft Attachment
CAUTION!
It is recommended that your towbar to attached to the aircraft first, and then connected to the
tug to avoid possible aircraft damage.
3.3.2
Tug Attachment
CAUTION!
Damage to the towbar or aircraft can result from an excessive towbar angle during towing
operations. Reference Figure 1.
Use a pintle height so that the towbar is as level as possible during towing. Also, the
pintle hook height should prevent contact of the towbar with the ground during towing.
Incorrect
(Excessive Towbar Angle)
Correct
FIGURE 1
