SHIELD AS-MANIFOLD 2902517 - Caterpillar

(4TM1853, 4TM1956-UP),
TH62 (3LN936-938),
TH82 (3JN703-704, 3JN720-UP),
TH63 (5WM2844-2847, 5WM2933, 5WM3055-UP),
TH83 (3RN1839, 3RN1959-1963, 3RN1979-1980, 3RN2030, 3RN2056-UP),
TH103 (3PN837, 3PN944, 3PN996-UP) TELEHANDLERSProblem:
Reports have been received of joystick response time being slow on some machines when the machine is in joystick mode.Solution:
The slow response time from the joystick is caused by air trapped in the pilot oil control lines from the joystick mode.Park the machine, lower the boom, and apply the park brake. With the engine running remove each pilot line from the main control valve. Place the end of the line into a suitable container to catch the oil. Operate the corresponding joystick function until all the air is purged from the line. Reassemble the pilot line to its original location on the main control valve while ensuring a minimal amount of air is introduced back into the line.COPYRIGHT 2000 CATERPILLAR ALL RIGHTS RESERVED