Tronair 01-1109-0010, Руководство по эксплуатации и обслуживанию, Страница: 5 / 15

Model: 01-1109-0010
King/Queen Air - Snap-Bak Towbar
03/2008 | Rev. 06 Page | 2
3.0 OPERATION
3.1 PRELIMINARY CHECKLIST
3.1.1 Towbar

Check weld between lunette and tube for cracks.

Check lunette for bending, excessive wear and deformity.

Check weld between tube and spring retainer for cracks.
3.1.2
Towing Head

Check welds between side rails and head rail for cracks

Check welds between head rail and spring retainer housing for cracks.

Check welds between side rails and stationary pin. Also sliding pin wear sleeve for cracks.

Check fastener connection of towing head to towbar. Ensure the connection is not loose or missing.

Check sliding pin ball lok-T pin. Ensure ball lok-T pin is securely attached to the side rail via its lanyard. Ensure ball lok-T
pin is not missing.

Check sliding pin for bending or excessive wear. Ensure sliding pin slides freely.

Check sliding pin roll pin. Ensure roll pin is not loose or missing.

Check snap-bak spring. Ensure the spring is not loose or taken a set. Ensure the spring operates correctly.
3.2
USAGE PROCEDURE
3.2.1 Aircraft Attachment
CAUTION!
It is recommended that your towbar be attached to the aircraft first, and then connected to the tug to avoid
possible aircraft damage.

Ensure the sliding pin is locked in place using the ball lok-T pin.
3.2.2
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.
3.2.3
Couplers
CAUTION!
Damage to the towbar or aircraft can result while towing with the following types of couplers:

Lift Head

Standard Duty Latch

Vertical Side Swing Latch

Swivel Hook
The couplers listed above are known to cause binding and
failure in the lunette eye. Indicators of binding are wear on
outside diameter of the eyebolt and indentation on the inside
diameter of the eyebolt.
Reference Figure 3 .
3.2.3 Couplers continued on following page.
Incorrect
Excessive Towbar Angle
Correct
FIGURE 1
FIGURE 3