10-foot lower structure, a variable height upper
structure, and a manual pump actuated hydraulic
system for raising and lowering the upper structure.
The upper structure includes a work platform with
guardrails and steps with handrails. The lower structure
includes fixed steps and handrails, a towbar, and four
free-swivel caster wheels with safety locking devices,
four immobilizing jacks, and a hydraulic pump, lines,
and reservoir. The height range for the B-2 work
platform is from 13 feet to 20 feet, and it has a weight
bearing capacity of 600 pounds.
B-4 MAINTENANCE PLATFORM.The B-4
maintenance platform (fig. 9-30) is a moveable,
hydraulically operated, adjustable platform with a
ladder assembly. Four free-swivel caster wheels, each
having a foot-lever actuated mechanical brake and
swivel lock mechanism, are included. The platform is
equipped with safety guardrails, handrails for the
ladder, two safety lock pins, which are inserted into the
frame to lock the extension scissors of the platform. A
hydraulic hand pump with reservoir is provided for
raising and lowering the platform. The adjustable
height range for the B-4 work platform is from 3 to 7
feet and a weight bearing capacity of 600 pounds.
Q9-1. What are the two types of support equipment?
Q9-2. The primary function of the A/S32A-30 tow
tractor is to tow what aircraft or equipment?
Q9-3. What tow tractor is designed for towing air-
craft aboard ship?
Q9-4. What type of tow tractor is designed to tow,
turn, and position aircraft within the confines
of an aircraft carrier hangar deck and is often
called "The Spotting Dolly"?
What aircraft crash handling and salvage
crane is used on amphibious assault ships?
Q9-6. Aboard ship, what is the primary fire-fighting
and rescue vehicle?
Q9-7. What fire-fighting agents are contained in the
twinned agent unit (TAU-2H)?
Q9-8. What activity is tasked with maintenance of
forklifts aboard naval stations?
Q9-9. What mobile electric power plant is designed
primarily for use on aircraft carriers?
Q9-10. What type of motor propels the NC-8A mobile
electric power plant?
Q9-11. What is the danger associated with operating
the NC-8A or NC-10C when aircraft are
Q9-12. The A/M47A-4 jet aircraft start unit provides
what support for starting aircraft?
Q9-13. What are some of the dangers associated with
operating a jet aircraft start unit?
Q9-14. The A/M27T-5 is used to service what aircraft
Q9-15. How many nitrogen gas cylinders are mounted
on the A/M26U-4 (NAN-4) servicing unit?
Q9-16. What are the major components on the TMU
70/M oxygen storage tank?
What is the purpose of having mobile air-
Q9-18. What type of aircraft jack is used to raise the
entire aircraft off the deck?
Q9-19. What is the weight bearing capacity of the B-4
purpose for support equipment preoperational
maintenance and the requirements for support
equipment training, licensing, and misuse/
You, as an Airman Apprentice, are not responsible
for maintaining support equipment, unless you are
striking for Aviation Support Equipment Technician.
You will, however, be required to operate support
Figure 9-30.B-4 maintenance platform.