1989/12/18 Caterpillar

Blade Control Lever Can Be Repositioned To Improve Operator Comfort And Linkage Life{5051,5063,5600}

Usage:

CS/CP-323 ( 6JD ) Compactors

Blade control lever position can be improved by remounting the blade control valve group at an angle that is more in line with the natural arm movement of the operator. The current position of the blade control lever is in line with machine movement (straight forward and backward). Operator discomfort and linkage failure of the blade control valve has occurred because the natural arm movement of the operator is to pull the control lever back at an angle toward his body rather than straight back.

To reposition the blade control valve, use the following procedure.

1. Remove the blade control valve from the mounting bracket.

2. Drill three 8.0 mm (.31") diameter holes at the locations shown in Illustration 1.

3. Reinstall the blade control valve.

NOTE: If the current 779648 S-hook Linkage has failed, it may be replaced by heavy-duty 7R4755 S-hook Linkage.

Illustration 1. Blade control mounting bracket.

Illustration 2. Blade control valve group.

Caterpillar Information System:

1989/12/18 New Seal Kit Used In Drag Conveyors{6630,3261,4184}

1989/12/18 Procedure For Testing Electrical Displacement Control On Hydraulic System Ground Drive Pump{5070,5700,1400}

1989/12/18 New Electronic Height Sensor For Suspension Control{7215}

1989/12/18 New Wiper Motor Group, Arm And Shaft Assembly Used In Windshield Wiper Group{7305}

1989/12/18 Stronger No. 4 Clutch Housing Used In Transmission{3169}

1989/12/18 Field Service Update Kit Now Available For Suspension Seat{7312,7307,7324}

1989/12/18 Conversion Kits Are Available To Change Speeds Of Winches{5163,5165}

1989/12/11 Modification Of 2W1054 Screen Assembly For Use During Dynamometer Testing{1307}

1989/12/11 New Camshaft And Lifter Kits Available For Slipper Type Cam Followers (Valve Lifters){1209,1210}

1989/12/11 Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}

1989/12/11 Water Spray System Available For Lower Conveyor{5612}

1989/12/11 New Articulation Lock{7506}

1989/12/25 New Service Repair Spring Available For Winch Clutch And Brake Control Group{5419,5173}

1989/12/25 New Assembly Method For Track Links Makes It Easier To Install And Adjust{4169,4170}

1989/12/25 Electrical Connection Studs Are Too Long On Fuel Level Sensor{7481,1400}

1989/12/25 New Thrust Discs Used In Transmission And Transfer Drive Groups{3060,3260}

1989/12/25 Components Of 9T1318 Steering Metering Pump Group Are Available For Parts Service{4312}

1989/12/25 Gaiter (Protector) Available For "Over-Hitch" Hoses{7167,5057}

1989/12/25 Alternative Air Pressure Test Point{1804}

1989/12/25 New Shaft Assembly Available For Cutter Drum{6601}

1989/12/25 Do Not Use 1U5555 Hydraulic Hose Press Pump Group In 230 Volt Circuits{0616,5057}

1989/12/25 New Cooling System Cleaner Now Available For All Engines{1350,0680,1352,1353}

1989/12/25 New Fuel Return Valve Prevents Siphoning{1253,1274}

1990/01/15 Information About Front Tire Wear And Drive Train Noise {4203,4231,4233,3000}