Boom And Attachment Control Must Be In The "HOLD" Position When Starting The Engine {5725,7400}
Usage:
RT50, RTC60 (5PF, 4XG),
RT60 (5DG),
RT50 SA (8DJ),
RT80, RT100 (1GJ) Telescopic Material Handlers
All boom and attachment motions are automatically inhibited if the boom and attachment control is not in the "HOLD" position. This is a safety feature which is not described in Operation & Maintenance Manuals.
The control is spring centered to the "HOLD" position. The control could be offset due to an operator accidentally leaning against it while starting the engine. If this occurs then no boom and attachment motion can be initiated until the engine is switched off and started again with the control in the "HOLD" position.
Caterpillar Information System:
1996/10/28 Additional Brake System Servicing Information {4005}
1996/10/28 Procedure To Adjust Creeper Speed Control {3162}
1996/10/28 Special Instruction SEHS9953 Available for Procedure to Repair Dump Body Pivot Assemblies {7258}
1996/10/28 Special Instruction SEHS9952 Available for Procedure to Repair Dump Body Pivot Assemblies {7258}
1996/10/28 Modifications To Body Guide Prevent Interference {7258}
1996/10/28 New Race Used in Steering Groups to Improve Angular Rotation of Sockets {4305}
1996/10/28 Parts Added to Increase Clearance Between Steering Relief Valve Group and Engine Oil Pan Assembly {4304,4307}
1996/10/28 Higher Viscosity Power Train Oil Should Be Used in Certain Applications {4070,0645}
1996/10/28 New Flange And Seal Can Be Used In Engine Turbocharger Groups To Help Prevent Exhaust Leaks {1052,1059}
1996/10/28 Cab Door Hold Back Latch Modifications Improve Door Retention {7308,7325}
1996/10/28 Front Idler Hub Oil Change Interval And Factory Oil Fill Changed {4159,4167,4215}
1996/10/28 Improved Final Drive Pinion Bearing Setting Procedure Used And New Shim Pack Kit Available {4050,4091}
1996/10/28 Procedure To Assemble Hydraulic Pilot Line Fittings {5057}
1996/10/28 Seal Kits For Hydraulic Unit Injector Pump Groups Available {1250,1714}
1996/10/28 New Procedure For Installing The Gear On Scavenge Oil Pump Shafts Within Scavenge Oil Pump Groups {1312}
1996/11/04 New Tooling Available To Install Power Take-off Output Shaft And Hitch Rock Shaft Seals {0745,3107,0755,7117}
1996/11/04 Improper Monitoring Of DIFFERENTIAL OIL LEVEL By Vital Information Management System (VIMS) {3258,1920,7601}
1996/11/04 New Suspension Frame Group Now Used To Prevent Cracking {7216,7203}
1996/11/04 Adjustment Procedure For Cab Door Latch And Hold-Open Release {7301,7308}
1996/11/04 Fuel Injection Pump Bushings Have New Groove Adjacent To Load Ring {1251}
1996/11/11 Special Instruction, SEHS9874-01, "Challenger Agricultural Tractors In Scraper Applications"{0375,0376,4150,7000}
1996/11/11 Improved Electronic Control Modules Reduce Electrical Interference{7490,3175}
1996/11/11 Longer Battery Cable Now Used To Prevent Interference With Starting Motor Cover{1401}
1996/11/11 Special Instructions SEHS9896, REHS0037 And REHS0038 Available For Installation Of A Bolt-On Ball On Early Drawbars{6153,6157,6170,6171}