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 TM 5-2410-237-23
INSTALLATION OF MINE CLEARING RAKE (MCR) EAR TO BULLDOZER
BLADE MOLDBOARD - CONTINUED
0229 00
INTRODUCTION - CONTINUED
Suitable Welding Processes.
3.
NOTE
Refer to TC 9-237, Operators Circular for Welding Theory and Applications for further welding instructions.
a.
Use low-hydrogen process with minimum yield strength of 60,000 psi (413,700 kPa) and 0.5 in. (12 mm) all
around weld.
b.
For Manual Metal Arc Welding, use AWS 7018 electrode.
c.
For Shielded Metal Arc Welding, use AWS ER70 S1, S2 or S3 electrodes.
INSTALLATION
Aligning Machine to Rake Assembly.
1.
a.
Place rake locking hooks (1) in open position, by removing retaining bolts (2). Rotate hook to open position. Rein-
stall bolts to prevent loss.
b.
Place a 0.25 in. (6 mm) spacer (3) on each locking hook (1) and temporarily secure spacer with tape.
c.
With assistance of a ground guide, move machine slowly toward rear of rake assembly.
d.
Align right hand side of moldboard end plate (4) with slotted guide plate (5) on rake. Keep moving until cutting
edge (6) contacts rake push pad (7).
e.
Remove hook retaining bolts (2) and rotate hooks (1) to closed position. Reinstall hook retaining bolts.
f.
Slowly lower blade until cutting edge (6) contacts spacers (3). Maintain contact with both spacers until fit-up pro-
cess is completed.
5
4
2
7
3
387-829
6
1
387-830
Measuring and Fitting Mounting Ears to Machine.
2.
a.
Install mounting ear (8) to each side of rake assembly with retaining pin (10), bolt (11) and locknut (12).
b.
Inspect both mounting ears (8). Measure and record the greater stand-off distance (if any) between mounting ear
and face of moldboard (9).
0229 00-2
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