TM 9-2330-386-14&P
5-9 KINGPIN.
This task covers removal and installation.
INITIAL SETUP
Tools
Personnel Required:(2)
Welder 44 B
General mechanics tool kit
S h o p equip repair, FM basic, Sup No. 2
Equipment conditions
References
Shop equip welding field maint
L a n d i n g legs down.
Para 2-1
Material/Parts
Para 3-8 Outer tires and wheels
P a i n t (item 18, Appendix E)
on front axle removed.
a. Removal.
WARNING
Compressed air for cleaning purposes will not exceed 30
psi. Particles blown by compressed air are hazardous.
M a k e certain the air stream is directed away from user
and other personnel in the area. To prevent injury, user
m u s t wear protective goggles or face shield when using
compressed air.
W e a r welding mask, gloves, and apron when welding or
using cutting torch. Failure to wear adequate protective
clothing may result in serious injury.
(1) Measure from floor side of bulkhead (1) and mark two straight lines on top
metal plate (2) between main beams (3) at locations shown.
(2) Using the air-arc process, make two straight cuts in top metal plate (2)
between main beams (3) at locations marked.
(3) Air-arc the existing welds securing the metal plate (2) to the main
b e a m s (3).
(4) Remove the cut out section of metal plate (2) to gain access to top of
kingpin.
( 5 ) U s i n g t h e a i r - a r c p r o c e s s , r e m o v e the welds securing the kingpin (4)
m u s h r o o m t o t h e b o l s t e r p l a t e ( 5 ) . A 300 amp welder is required along with
a s h o p a i r s u p p l y o f 9 0 p s i . C a r e must be taken to minimize damage to the
bolster plate (5).
(6) Remove and discard the kingpin (4).
5-10
