1. HEAVY EQUIPMENT 2. CRAWLER EXCAVATORS 3. DROTT 4. (120) - DROTT CRAWLER EXCAVATOR (1/75-12/78) 5. (35) - HYDRAULIC SYSTEMS Select section (35) - HYDRAULIC SYSTEMS Case: (049) - PUMP DRIVE TRANSMISSION (051) - PUMP DRIVE TRANSMISSION CLUTCH (115) - SWING REDUCER (129) - HYDRAULIC OIL RESERVOIR SUPERCHARGE CIRCUIT (131) - LOW PRESSURE LINES FROM RESERVOIR TO PUMPS AND RETURN FROM VALVE (135) - OIL COOLER HYDRAULICS (139) - HIGH PRESSURE LINES FROM PUMPS TO VALVES (141) - POWER SENSING VALVE HYDRAULICS (143) - HOIST CYLINDER HYDRAULICS (145) - CROWD CYLINDER HYDRAULICS (147) - ANTI-DRIFT HYDRAULICS (149) - TOOL CYLINDER HYDRAULICS (151) - FAST HOIST HYDRAULICS (155) - SWING MOTOR HYDRAULICS (157) - SWING MOTOR DRAIN LINES (159) - SWING BRAKE HYDRAULICS (161) - LEFT TRACK DRIVE MOTOR HYDRAULICS (163) - RIGHT TRACK DRIVE MOTOR HYDRAULICS (177) - COUNTERWEIGHT REMOVAL HYDRAULICS, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287228 (181) - COUNTERWEIGHT REMOVAL HYDRAULICS, USED ON UNITS WITH SERIAL NO. 6287229 AND AFTER (185) - CLUTCH CYLINDER HYDRAULICS (187) - PILOT PRESSURE CIRCUIT, RESERVOIR TO PUMP TO VALVES (189) - PILOT PRESSURE CIRCUIT, RESERVOIR TO PUMP TO VALVES, INCLUDES AUXILIARY PUMP HYDRAULICS (193) - PILOT PRESSURE CIRCUIT, MODULATOR CONTROL VALVES TO BULKHEAD (195) - PILOT PRESSURE CIRCUIT, MODULATOR CONTROL VALVES TO BULKHEAD (197) - PILOT PRESSURE CIRCUIT, BULKHEAD TO FRONT MAIN CONTROL VALVE (201) - PILOT PRESSURE CIRCUIT, BULKHEAD TO REAR MAIN CONTROL VALVE (205) - DRAIN CIRCUIT, CLUTCH, HAND AND FOOT CONTROL, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287228) (207) - DRAIN CIRCUIT, CLUTCH, HAND AND FOOT CONTROL, USED ON UNITS WITH SERIAL NO. 6287229 AND AFTER (209) - HOIST CYLINDER, 10" ID X 58.25" STROKE (211) - CROWD CYLINDER, 9' ID X 74.50" STROKE (213) - TOOL CYLINDER, 9" ID X 54.625" STROKE (215) - COUNTERWEIGHT CYLINDER, 3.50" ID X 33" STROKE, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287224 (217) - COUNTERWEIGHT CYLINDER, 3.50" ID X 33" STROKE, USED ON UNITS WITH SERIAL NO. 6287225 AND AFTER (219) - HYDRAULIC CLUTCH CYLINDER (221) - HYDRAULIC OIL RESERVOIR AND ATTACHING PARTS (223) - HYDRAULIC OIL FILTER, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287228 (225) - HYDRAULIC OIL FILTER, USED ON UNITS WITH SERIAL NO. 6287229 AND AFTER (227) - HYDRAULIC OIL FILTER (229) - TRACK DRIVE MOTOR (233) - SWING MOTOR (235) - MAIN HYDRAULIC PUMP (237) - TANDEM HYDRAULIC PUMP, USED FOR PILOT CONTROL SYSTEM AND COUNTERWEIGHT (239) - 5-PORT HYDRAULIC SWIVEL (241) - HYDRAULIC SERVICE SWIVEL (243) - COUNTERWEIGHT REMOVAL CONTROL VALVE, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287228 (245) - COUNTERWEIGHT REMOVAL CONTROL VALVE, USED ON UNITS WITH SERIAL NO. 6287229 AND AFTER (247) - RELIEF AND CHECK VALVE, USED WITH COUNTERWEIGHT REMOVAL CONTROL VALVE (249) - MODULATOR HAND CONTROL VALVE (251) - MODULATOR FOOT CONTROL VALVE, USED ON UNITS WITH SERIAL NO. 65521 THRU 6287228 (253) - MODULATOR FOOT CONTROL VALVE, USED ON UNITS WITH SERIAL NO. 6287229 AND AFTER (255) - POWER SENSING RELIEF VALVE (257) - SOLENOID CONTROL VALVE (259) - DRIVE AND SWING BRAKE CONTROL VALVE (261) - SWING CROSSOVER RELIEF VALVE, USED ON UNITS WITH SERIAL NO 65521 THRU 6287222 (261[1]) - USED ON UNITS WITH SERIAL NUMBER 6287223 AND AFTER (263) - SHUT-OFF VALVE (265) - ANTI-DRIFT SOLENOID (267) - ANTI-DRIFT VALVE (269) - MAIN CONTROL VALVE ARRANGEMENT (271) - MAIN CONTROL VALVES (273) - FAST HOIST MAIN CONTROL VALVE sale parts diagram catalog online construction equipment excavator tractor Truck sale:
![Case parts catalog diagram (261[1]) - USED ON UNITS](http://c1.a2109.com/_350/casece2/99/996623.png)
