HOSE AS 2703334 - Caterpillar

Problem N
The diagnostic lamp of the speed pickup is on.Step 1
When the speed of the vehicle is 3 to 8 km/h (2 to 5 mph), count the number of flashes in five seconds. Refer to the following chart for the identification of the failed pickup.
One flash indicates the left axle pickup.
Two flashes indicate the right axle pickup.
Three flashes indicate the transmission pickup.
Four flashes indicate the speed pickup lamp.If there are either one, two, or four flashes, proceed to "Step 2". If there are three flashes, proceed to "Step 3".Step 2
While the machine is moving, look at the left and right axle pickups. If one or both of the axle pickups are disconnected, proceed to "Problem O".If both lamps are on, proceed to "Problem H".Step 3
While the machine is moving, look at the transmission pickup lamps. If the lamp is off, proceed to "Problem P". If the lamp is on, proceed to "Problem I".Problem O
The axle pickup is off when the vehicle is moving.Step 1
Stop the vehicle. Set the parking brake and put the transmission in the NEUTRAL position. Shut off the engine. Turn on the key and the disconnect switch in order to send power to the electronic control module.Remove the guard and disconnect the pickup from the harness. Remove the axle pickup from the housing and reconnect the harness to the pickup. Create an electrical contact between the pickup case and the vehicle frame.Wave a screwdriver blade about 1 mm (.04 inch) from the sensing end of the pickup. Another person should watch the corresponding lamps. If the lamp flashes, proceed to "Step 2". If the lamp does not flash, proceed to "Step 4".Step 2
Look down the hole for the pickup in the housing. Use a flashlight to look for the speed gear teeth. If the teeth can be seen across the entire width of the hole, proceed to "Step 2". If the teeth cannot be seen, the speed gear has been incorrectly installed.Step 3
Remove the axle shaft. Verify that the speed gear collar is attached tightly. Verify that the correct distance exists between the outer end of the axle and the collar edge. If the correct distance exists and the collar is tight, check for an incorrect adjustment. If the correct distance does not exist and the collar is not attached tightly, correct the problem.The following table has the correct distances for the different sales models.
Table 2
Sales Model     Correct Distance    
768C/ 769C/ 769D/ 771C/ 771D    
930 mm (36.6 inch)    
772B/ 773B/ 773D/ 775B/ 775D/ 773F/ 775F    
1059 mm (41.7 inch)    
776/ 777    
1218 mm (48.0 inch)    
776B/ 777B/ 776C/ 777C    
1218 mm (48.0 inch)    
776D/ 777D/ 777F    
1295 mm (50.1 inch)    
784B/ 785/ 785B/ 784C/ 785C    
1318 mm (51.9 inch)    
789/ 789B/ 789C    
1550 mm (61.0 inch)    
793/ 793B/ 793C/ 793D    
1735 mm (68.3 inch)    Step 4
Disconnect the chassis harness from the axle pickup. Test the voltage