Broderson IC-250-3E - Boom Cylinder Holding Valve

SECTION 3 MAINTENANCE
Safety Rules……………………………………………………………….. 3-1
New Unit Inspection and Test……………………………………………. 3-3
Operator Inspection and Test……………………………………………. 3-4
Maintenance Checklist……………………………………………………. 3-6
Fluid Volume…………..……………………………………………………. 3-8
Lubrication…………………………………………………………………. 3-9
Lubrication Chart……………………………………………… 3-9
Lubrication Schedule………………………………………….. 3-10
Boom Chain Lubrication………………………………………. 3-11
Rotation System Lubrication………………………………….. 3-12
Transmission Fluids…………………………………………… 3-12
Axle Lubrication………………………………………………… 3-12
Wire Rope Lubrication………………………………………… 3-13
Hoist Cable Installation and Inspection………………………………….. 3-13
Hydraulic System Description……………………………………………. 3-15
Steering System……………………………………………….. 3-15
JIC Schematic…………………………………………………. 3-16
Hydraulic System Maintenance………………………………………….. 3-18
Care of Hydraulic Oil………………………………………….. 3-18
Hydraulic Oil Specification……………………………………. 3-19
Removal of Air from Hydraulic Circuits…….….……………. 3-20
Hydraulic Seals………………………………………………… 3-21
Pressure Settings………………………………………………………… 3-22
Hoist Circuit……………………………………………………. 3-22
Boom and Outrigger Circuit………………………………….. 3-23
Boom Cylinder Holding Valve………………………………… 3-23
Telescope Cylinder Holding Valves…………………………. 3-24
Boom Chain Adjustment………………………………………………….. 3-25
Engine Maintenance………………………………………………………. 3-27
Air Cleaner Service……………………………………………. 3-27
Cooling System………………………………………………… 3-27
Spare Parts Lists………………………………………………. 3-27
Major Engine Servicing or Overhaul…………………………. 3-27
Mechanical Adjustments………………………………………………….. 3-28
Fasteners………………………………………………………. 3-28
Rotation Gearbox………………………………………………. 3-28
Transmission and Axle Overhaul…………………………….. 3-28
Park Brake Test and Adjustment…………………………….. 3-28
Torque Data……………………………………………………. 3-30
Wiring Diagrams……………………..
In Pocket at Back of Manual