Case 2090, 2290 Tractor Service Manual

Table of Content (Service Manual)

1. General
2. Engine
3. Fuel System
4. Electrical
5. Steering
6. Power Train
7. Mechanical Shift Tractors
8. Power Shift Tractors
9. Brakes
10. Hydraulics
11. Accessories
12. How it Works

Manual Extract: Checking The Control Rack Movement

If the control rack in the fuel pump does not move freely and is being kept in the stop position, the engine can be hard to start and there will not be any exhaust smoke. The stop position on the Robert Bosch governor is always with the control rack toward the rear of the injection pump or governor.

Varnish in the fuel can cause the control rack not to move freely. Tell the customer to use a small quantity of Case Diesel Fuel Conditioner in the fuel tank every day. The conditioner will remove the varnish deposits that are already in the engine and will also prevent these deposits from being made. Tell the customer to see the Fuel Specifications Section of the Operator’s Manual for information on the Case Fuel Conditioner.

To make the control rack move freely, do this:
1. Loosen and remove the cap nut on the front of the fuel injection pump.
2. Put the throttle hand lever in the fully forward position so that the control rack will be toward the full load position.
3. Move the control rack (from the cap nut end) by hand several times to remove the varnish deposits that are on the control rack.
4. Make sure that the control rack moves easily and smoothly before replacing and tightening the cap nut.