TB-9-2350-368-25

M113A2/M113A3/M548Al/M548A3 FAMILY OF VEHICLES INCLUDING OPPOSING FORCES SURROGATE VEHICLE (OSV)

FABRICATION AND OPERATION OF POWERPLANT TEST STAND

FEBRUARY 2003
TB-9-2350-368-25

  TB-9-2350-368-25 - Page 84 of 120

TB 9-2350-368-25
4-12
b) In outside temperature is less than 85°F (29°C), normal operating temperature should be 160°
to 200°F (71° to 90°C). If outside air temperature is greater than 85°F (29°C), normal operating
temperature should be 160° to 225°F (71° to 107°C).
CAUTION
Limit stall test to 30 seconds. Full throttle use with brakes locked
overheats oil and will damage powerplant. If you suspect a bad
governor, do not perform stall check. Unless absolutely necessary do
NOT use stall check, use alternate test.
c)
Lock brakes, move range selector to range 1 and push accelerator all the way down.
NOTE
Extremely high ambient temperature and high altitude will reduce
stall speed.
d) If carrier is equipped with an X200-4 transmission, tachometer readings above 2450 means
transmission problems and readings below 2350 means engine problems. Troubleshoot suspect
systems or check for wrong tachometer adapter. If fault cannot be found, notify direct support
maintenance.
e) If carrier is equipped with an X200-4A transmission, tachometer readings above 2300 means
transmission problems and readings below 1900 means engine problems. Troubleshoot suspect
systems or check for wrong tachometer adapter. If fault cannot be found, notify direct support
maintenance.
STOP
32. Pull stop lever to stop position.
33. Turn master switch to
OFF
position.
REMOVE
WARNING
Hot oil, water, and engine parts can burn you. Let powerplant cool
before you start work.
34. Remove turbocharger inlet shield from engine turbocharger inlet.
35. Remove clamp and elbow from engine turbocharger exhaust outlet.
WARNING
Hot radiator water can burn you. Use hand to remove cap only if cool
to touch. Turn cap slowly to release pressure. Replace cap by
pressing down and turning cap until tight.
36. Open and drain engine water drain cocks both right and left side. Open transmission oil cooler and
radiator drain cocks. Use caution, hot water can burn you. Place a suitable container under drain cocks.
37. Remove two cotter pin and shoulder pin from brake stall tool and brake linkage rod.


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