TM 9-2330-386-14&P
5-9 KINGPIN (CONT) .
(6) Weld the kingpin (4) mushroom to the bolster plate (5) with a continuous
5/8 inch fillet weld. Welds are to be in accordance with MIL-STD-1261,
class 3. Use 70,000 psi electrode or wire of the following specification:
e l e c t r o d e s , mineral coated, low hydrogens MIL-E-2200/6 type MIL-10015 or
MIL-10016. Wire, use bare solid wire, low alloy steel, MIL-E-23765/2 type
1 0 0 S - 1 or 110S-1.
( 7 ) Repeat step (6) two times to obtain a continuous 3-pass weld on the
kingpin.
(8) Inspect kingpin weld and the air-arc cut edges with dye penetrant or
m a g n e t i c p a r t i c l e i n s p e c t i o n . N o c r a c k s a r e a l l o w a b l e . A n y cracks found
must be ground out or otherwise repaired.
( 9 ) Weld into place the top metal plate (2) that was removed to gain access to
the kingpin.
( 1 0 ) Prime and paint the top metal plate (2) as follows: prime, per TT-p-636 or
T T - P - 6 3 4 . Paint using chemical agent resistant coating (CARC) per
M I L - C - 4 6 1 6 8 or MIL-C-53039.
TASK ENDS HERE
Section VI. SUSPENSION MAINTENANCE
Para
Springs .. .. ... ... .. ..... . . . . . . . . . . . . . . . . . . . . . . .. .. .. ... ... ....... 5-10
Trunnion Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5-10 SPRINGS.
This task covers removal and installation.
INITIAL SETUP
Tools
Equipment Condition
References
J a c k stands
L a n d i n g legs down.
S h o p equip auto repair, FM basic
Para. 3-8 Tires and wheels removed.
S h o p equip welding field maint
P a r a . 4-27 All hoses removed from
Required:
air brake chambers.
Welder 44B
5-13
