CASE > HEAVY EQUIPMENT > CRAWLER EXCAVATORS > DROTT > (40EC) - DROTT SERIES-B CRAWLER EXCAVATOR (1/71-12/84) > (07) - HYDRAULIC SYSTEM

(088) - TRACK BRAKE CYLINDER, *(USED ON UNITS WITH SERIAL NO. 1500 THRU 6270529) (088A) - TRACK BRAKE CYLINDER, (USED ON UNITS WITH SERIAL NO. 6270530 AND AFTER) (090) - LEVELER HYDRAULICS, (USED ON UNITS WITH SERIAL NO. 1500 THRU 1903) (092) - LEVELER HYDRAULICS, (USED ON UNITS WITH SERIAL NO. 1904 - UP (101) - WRIST -O - TWIST HYDRAULICS (102) - AUXILIARY BOOM HYDRULICS (104) - RESERVOIR TO PUMP TO MAIN VALVE HYDRAULICS (106) - MAIN VALVE TO RESERVOIR AND COOLER HYDRAULICS (109) - CROWD CYLINDER HYDRAULICS FOR "Y" BOOM (111) - CROWD CYLINDER HYDRAULICS FOR "E" BOOM (113) - TOOL CYLINDER HYDRAULICS FOR "Y" BOOM (115) - TOOL CYLINDER HYDRAULICS FOR "E" BOOM (117) - HOIST CYLINDER HYDRAULICS (119) - SWING MOTOR HYDRAULICS (120) - UPPER TRACK MOTOR DRIVE HYDRAULICS (121) - LOWER TRACK DRIVE MOTOR HYDRAULICS (123) - DRAIN HYDRAULICS (125) - HOIST AND CROWD CYLINDER, (6.53" ID X 45.50" STROKE) (127) - HOIST AND CROWD CYLINDER, (6.53" ID X 45.50" STROKE) (129) - HOIST AND CROWD CYLINDER, (6.53" ID X 45.50" STROKE) (131) - TOOL CYLINDER, (5.50" ID X 35.10" STROKE) (133) - WRIST - O - TWIST CYLINDER, (6.25" ID X 4.46" STROKE) (134) - LEVELER CYLINDER, (6.25" ID X 4.70" STROKE) (135) - 7-PORT HYDRAULIC SWIVEL AND MOUNTING PARTS (137) - HYDRAULIC TANDEM PUMP (139) - TRACK DRIVE MOTOR (141) - SWING MOTOR (142) - HYDRAULIC OIL RESERVOIR AND RELATED PARTS (143) - HYDRAULIC OIL FILTERS (145) - LEVELER CHECK VALVE (146) - SWING, IN LINE, CROSSOVER RELIEF VALVE (147) - 1-SPOOL MAIN CONTROL VALVE, (USED WITH LEVELER CIRCUIT) (149) - 4-SPOOL MAIN CONTROL VALVE, (USED WITH AUXILIARY, HOIST, LEFT TRACK AND TOOL) (151) - 4-SPOOL MAIN CONTROL VALVE, (USED WITH CROWD, FAST HOIST, RIGHT TRACK AND SWING) (153) - MAIN RELIEF CARTRIDGE (154) - PORT RELIEF CARTRIDGE (155) - CHECK VALVE, (USED IN TRACK DRIVE MOTOR DRAIN CIRCUIT)