Quantcast Adjustment -706881076

 

Click here to make tpub.com your Home Page

Page Title: Adjustment
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
APU GOVERNOR -706881075
Up
TM-5-4210-233-14-P-1 Firfighting Truck 100 Ft. Aerial Ladder 1000 GPM Manual
Next
APU VALVES -706881077
TM 5-4210-233-14&P-1
5-79. APU GOVERNOR - Continued
d. Adjustment.
(1)
Adjust engine speed (rpm) by turning engine speed adjustment nut. Use screw driver to prevent
stud from turning and turn nut clockwise to increase speed, counterclockwise to decrease speed.
(2)
Sensitivity (no load to full load speed drop) is adjusted by turning the sensitivity adjusting ratchet
nut accessible through hole in side of blower housing. 'If speed drops too much when full load is
applied, turn the ratchet nut counterclockwise to increase spring tension and compensate for
reduced rpm. An over-sensitive adjustment, approaching no speed drop when load is applied may
result in a hunting condition (alternate increase and decrease in speed). Adjust for maximum
sensitivity without hunting. The use of a reed-type frequency meter will give the most accurate
results. A mechanical tachometer can be used on the generator thru stud, but this is not generally
as accurate. It should be possible to adjust for a sensitivity of less than 3 cps, and 2 cps is usually
attainable.
(3)
After adjusting speed and sensitivity, secure speed stud lock nut and replace dot button in blower
housing.
e. Follow-on Maintenance.
(1)
Install gear cover (see para 5-68).
(2)
Install APU (see para 4-207).
5-405

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.