TM 5-3805-280-24-1
Tests
NOTE: Initial procedure is to adjust the load adjusting
screws (K) to match the two pumps before making
the final adjustment to get the combined pump
engine pulldown at high pressure.
d. Turn load adjusting screw (K) on front pump
regulator in until engine speed just starts to
decrease. Then, slowly turn load adjusting screw
out and in to verify the exact point where the engine
speed just starts to decrease (0--10 rpm).
e. Turn load adjusting screw (K) on rear pump
regulator in until engine speed just starts to
decrease. Then, slowly turn load adjusting screw
out and in to verify the exact point where the engine
speed just starts to decrease (0--10 rpm).
f. Release both propel functions.
NOTE: To avoid heating the oil excessively, only operate
the propel function over relief to check the
pulldown after each adjustment of screws
g. Turn both load adjusting screws in equal amounts.
Start with 1/4 turn.
h. Actuate and hold both propel functions over relief to
9025
J--13 mm Nut
check that engine pulldown speed is 2070--2080
25
K--Load Adjusting Screw (Inner Spring)
rpm.
113
L--Load Adjusting Cartridge (Outer Spring)
M--30 mm Nut
Load Adjusting Screw (Inner Spring)--Combined Pump Engine
Pulldown--Specification
Speed ...................................................... 2070--2080 rpm at 24 130 kPa
(240 bar) (3500 psi)
with tracks stalled
i. Hold the load adjusting screw and tighten nut on
both regulators.
Continued on next page
TX,9025,GG2661
1906MAY9711/14
6-244