| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-242-14
0145 00
ALIGN (continued)
NOTE
The dial indicator fixing stand must be fastened to the pump flange in order to obtain an
accurate reading. Fastening the fixing stand to the engine flange will result in inaccurate
readings.
6.
Fasten the dial indicator fixing stand (6) to the pump flange (7) as shown below to check the angular alignment.
7.
Position the dial indicator (8) against the engine flange (9) as shown. The dial indicator should have a 0.200 inch to 0.300
inch preload when installed against the engine flange.
8.
Zero the dial indicator (8) by twisting its bezel (10).
9.
Slowly rotate the pump shaft (11) while noting the dial indicator (8) reading. Note how far the dial indicator needle moves
to either side of zero. Add the readings on both sides of zero to determine the amount of angular misalignment. For
example, if the dial indicator needle moves 0.002 inch to one side of zero and 0.004 inch to the other side of zero, add the
two readings (0.002 in + 0.004 in = 0.006 in) to determine that the angular misalignment is 0.006 inch.
10. Maximum angular misalignment is 0.150 inch (3.80 mm). If the angular misalignment exceeds this specification, the
misalignment must be corrected. Angular misaligment is corrected by loosening the pump mounting bolts and reposi-
tioning (rotating) the pump on its mounting. After adjusting the alignment, tighten the pump mounting bolts and re-
check the alignment.
Correct
Angular
Parallel
Alignment
Misalignment
Misalignment
0145 00-2
|
||
|
||
