Wiper Arm Retaining Nut Requires Tightening After Initial Operation {7305}
Usage:
824G (4SN) Wheel Tractors;
825G (6RN) Soil Compactors;
826G (7LN) Landfill Compactors;
980G (2KR, 9CM, 2SR) Wheel Loaders
Machines using cab window wiper systems may require a re-torque of the wiper arm retaining nuts after early operation of the cab window wipers.
The assembly process has now been modified in production, but a post-production re-torque may be required. The wiper arm retaining nuts should be tightened after a minimum of one half hour to a maximum of four hours operation. This is necessary to assure that the wiper arm does not loosen and strip the threads on the wiper arm head casting. The recommended torque for this procedure is 24 ± 1 N·m (18 ± 1 lb ft).
Caterpillar Information System:
1997/02/24 Service Manual, Secondary Steering System, Supplemental Information Available {4300,4306,4307,4324,4339,7568}
1997/02/24 New Electronic Transmission Control Group Used {3032,3100}
1997/02/24 New Radiator Group Includes Improved Radiator Core Assembly {1353}
1997/02/24 Correction To Lift Arm Position Sensor Adjustment {0685}
1997/02/24 New Longer Thrust Pin And Bolts Now Used In Rear Suspension Cylinders To Increase Service Life Of Joint {7213,7201,7200}
1997/02/24 Service Parts Are Available For 9T-4785 Accumulator Group {4331,5077}
1997/02/24 New Sight Gauge On Rear Axle Housing Improves Serviceability {3260}
1997/02/24 Thicker Washer Used To Allow Proper Fastening Of Elbow In Transmission Oil Lines Group {3154,3030}
1997/02/24 New ECM Controlled Variable Speed Fan Clutch Group Available {1356}
1997/02/24 Special Instructions Now Available For 793C Off-Highway Truck Assembly Procedure {0374}
1997/02/24 New Hydraulic Oil Temperature Sender And Hydraulic Oil Temperature Gauge More Responsive {7450,7488}
1997/02/24 New Water Temperature Regulator Improves Cab Heating In Cold Weather Conditions {1350,1355}
1997/02/24 New Bevel Gear Set For Telehandler Front And Rear Differential Groups Improves Service Life {3256}
1997/02/24 New Telehandler And Material Handler Differential Lock Parts Improve Service Life {3258,3264}
1997/02/24 Cold Weather Steering For Telehandlers Improves With Additional Parts {4300,4307}
1997/02/24 Improved Hydraulic Oil Level Gauge For Telehandlers {5057,5050,5056,7479}
1997/02/24 Lubrication Pump Group Container Assembly Now Available As A Serviceable Part {7540,7510}
1997/02/24 Resetting Event Recorder And Service Lamp For VIMS {7601}
1997/02/24 Information Needed For VIMS Support {7601}
1997/03/03 Service Manual, SENR8457, "Challenger 35, Challenger 45, Challenger 55 Agricultural Tractors Tooling And Parts Serviceability For Electrical Connectors" Now Available {0350,1400}
1997/03/03 Revised Service Manual Module For Transmission Electronic Control Available {3168,3030}
1997/03/03 New Line Relief Valves Reduce Cylinder Drift And Improve Performance {5100,5117}
1997/03/03 New Toe Bearings Used In Differential And Bevel Gear Groups To Increase Bearing Service Life {3258}
1997/03/03 Larger Inner Retainer With New Harder Material Now Used In Some Front Wheel Groups {4208,4215,4006}