1998/02/16 Caterpillar


Air Bleed Procedure For Track Tensioning Ram Equipped With The Field Update Kit {4197}

Usage:


AP-1055B (8BM),
BG-2455C (6TN) Asphalt Pavers

NOTE: THIS PROCEDURE SHOULD BE USED IN CONJUNCTION WITH THE REMOTE BLEED INSTALLATION PROCEDURE.

1. Connect the auxiliary hydraulic oil supply hose to the tension manifold.

2. Open needle valve on top of the manifold 1 to 2 turns.

3. Connect discharge hose to the high pressure disconnect (from update kit), leave the pressure relief nut, on the female side of the quick disconnect, in the "off" or "closed" position. Place other end of hose into a bucket to capture the oil/air mixture while bleeding.

4. Stand clear of track and start engine. The ram will rapidly move the front idler forward and put tension on the track. The horn should stop sounding within a couple of minutes.

NOTE: If the horn does not shut off, the auxiliary pump pressure should be raised to reopen the track tensioner switch.

a) Connect a 3500 psi pressure gauge to the test port on the hopper valve manifold.

b) Start engine, adjust the auxiliary pump compensator to raise the pressure to 2300 psi.

5. Open the pressure relief nut at the disconnect and allow the oil/air mixture to escape the ram and manifold. The mixture will appear white and frothy and discharging air can be felt passing through the hose.

6. When all the air has passed from the ram, shut off the high-pressure relief nut at the quick disconnect and unplug the discharge hose. Replace the rubber boot on the male end.

7. Shut off the needle valve for the oil supply at the manifold.

NOTE: Applying 10 ft/lbs. over torque can result in breakage of the needle valve.

8. Shut off the engine, allow the auxiliary system pressure to drop to zero and disconnect the supply hose at the manifold and replace the dust caps on the quick disconnect coupler.

9. Restart the engine and reset the auxiliary pump pressure back to 2000 psi, the normal operating pressure of the auxiliary system.

Caterpillar Information System:

1998/02/16 Track Alignment Procedure {4198}
1998/02/16 Cold Cylinder Cutout Strategy Added To The Electronic Control Module (ECM) Software {1902}
1998/02/16 Improved Bearings Used In Transmission Planetary Groups On Certain Off-Highway Trucks {3160,3186}
1998/02/16 Procedure For Engine Pre-Lubrication System Bypass On Certain Off-Highway Trucks {1469}
1998/02/16 Special Instruction, SEHS9364-02, "Off-Highway Truck Rear Wheel Salvage", Is Now Available {0374,4208}
1998/02/16 24H Motor Grader Windshield Wiper Now Serviced {7305}
1998/02/16 Chrome Tension Cylinder Rods Are More Durable And Improve Seal Life {4197}
1998/02/09 Replacement Available For 7M-7260 Liquid Gasket {0648,0649,0651}
1998/02/09 Proper Reading Of LCD Service Meters {7450,7478,7480}
1998/02/09 New Shaft Seals Available For Gear Type Hydraulic Pump Groups To Prevent Leakage {5073}
1998/02/09 Replacements Products Available For 4C-4079 Brake And Component Cleaner {0680}
1998/02/09 8N-4617 Air Cleaner Clamp Kit Available {1051}
1998/02/16 Proper Remote Air Bleed Installation Procedure For Machines Equipped With MTS Track Systems {4197}
1998/02/16 Be Sure To Use The Correct Inlet And Exhaust Valves In Engines Equipped With Valve Bridges That Do Not Ride On Dowels {1105,1121}
1998/02/23 New Cover And Insert Reduce Wear Between Leveler And Cover For Steering Pump Group{4306}
1998/02/23 New Relief Valve Pressure Settings For Main Hydraulic System{5069,5117}
1998/02/23 New Custom Product Support Literature Is Available For 771D Quarry Trucks And 769D Off-Highway Trucks Equipped With 3Z-4939 Conventional Core Radiator Group{0374,1353}
1998/02/23 Procedure To Control Body Down Impact Speed On Certain Off-Highway Trucks{5102,7258}
1998/02/23 Oil Savers Removed From 793C Rear Axle Housing Will Improve Life Of Differential Group{4001,3260}
1998/02/23 Improved Stop/Tail/Turn Lamps Now Available{1432}
1998/02/23 Supplement For Disassembly And Assembly Of Front, Center, And Rear Differentials{3258}
1998/02/23 Corrections To Shiftpoint Specifications{3168}
1998/02/23 Supplement On Accumulator Precharge And Service Pressure{5081}
1998/02/23 Procedure To Disable Top Transmission Gears{3030,1400}
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.