Service Information Letter #A-141 - Hartzell Engine Technologies
Service Information Letter #A-141 - Hartzell Engine Technologies
Service Information Letter #A-141 - Hartzell Engine Technologies
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<strong>Service</strong> <strong>Information</strong> <strong>Letter</strong><br />
<strong>Letter</strong> A-<strong>141</strong><br />
2900 Selma Highway<br />
Montgomery, AL 36108 USA<br />
Tel: 334-386-5400 Fax: 334-386-5450<br />
Direct Drive Starter Motor<br />
Torque & Drive Shaft Tolerance<br />
(2) The set up requires the starter be held vertically with the drive shaft up and then<br />
vertically with the drive shaft down.<br />
(a)<br />
(b)<br />
Placing the starter vertical with the drive shaft up allows a check of the length of<br />
the drive shaft from the starter mounting flange.<br />
Placing the starter vertical with the drive shaft down allows a check of the drive<br />
shaft end play by measurement and calculation.<br />
(3) Check the starter drive shaft minimum length by setting the starter on blocks vertically<br />
with the drive shaft up.<br />
(a)<br />
(b)<br />
(b)<br />
Size the blocks of equal measure and width so the starter is stable.<br />
Place the bottom side of the mounting flange (flange with holes) on to tall blocks.<br />
Tap gently on the drive shaft with a plastic mallet.<br />
(4) Place the dial indicator on the flange surface which will be attached to the engine<br />
starter drive adapter, zero the indicator. See Fig. 2.<br />
Figure 2 - Set Dial at Zero on Flange<br />
Rev. New: April 1/11 SIL A-<strong>141</strong><br />
© 2011 - <strong>Hartzell</strong> <strong>Engine</strong> <strong>Technologies</strong>. - All rights reserved Page 4 of 8
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