If the charge pressure is not correct loosen the charge relief valve plug (Item 1) [Figure 30-30-2].
Assemble: Always use a new O-ring. Tighten the plug to 30-50 ft.-lbs. (41-68 Nm) torque.
Remove the plug, spring and poppet [Figure 30-30-3].
Check the poppet and spring for wear or damage.
There are several different thickness of the shims (Item 1) [Figure 30-30-4] and are used to adjust the charge
pressure.
NOTE: 0.010 inch (0,254 mm) is 8 PSI (55.16 kPa) increase in pressure.
The charge pressure should be set at:
For S/N 515844250 and Above: 240-260 PSI (1379 kPa) with approximately 140ยฐF (49ยฐC) fluid @ 2710-2850 RPM.
For S/N 515844249 and Below: 155-165 PSI (1276-1345 kPa) with approximately 140ยฐF (49ยฐC) fluid @ 2710-2850 RPM.
