UNION 0845310 - Caterpillar

Sudden movement of the machine can cause injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the water spray system.
Personal injury or death can result from escaping fluid under pressure.Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated by a doctor familiar with this type of injury.Always use a board or cardboard when checking for a leak.
Table 1
Required Tools    
Item    Part Number    Description    Qty    
1     5P-0753     Tube     1    
2     5P-4402     Connectors     6    
3     4C-8688     Flow Meter
0.4 - 7.6 L (0.1 - 2 US gal)     1    
4     8T-0848     Pressure Gauge
0 - 400 kPa (0 - 58 psi)     1    
5     9X-0507     Shutoff Valve     1    
-     1U-7648     Tube Cutter     1    
Do the following steps before you perform the following test:
Activate the parking brake.
Place the propel lever in NEUTRAL.
Illustration 1 g01129957
Water Pump (1) Tube (2) Connector (3) Flow meter (4) Pressure gauge (5) Valve (6) Water bottle (7) Pump
Remove the water pump from the machine.
A temporary water circuit will need to be built. Use tube (1) for the water lines. Cut the tube with the 1U-7648 Tube Cutter. Cut the tube to various lengths, as needed. Use the connector (2) to connect the tube to all the components in the test. Do the following steps in order to build the temporary water circuit.
Cut the tube. The tube will supply the water from the water bottle (6) to the pump (7). Connect the tube to the inlet side of the pump (7) .
Cut a tube. The tube will supply the water from the outlet for the pump (7) to the inlet for the flow meter (3) .
Cut a tube. The tube will supply the water from the outlet for the flow meter (3) to the gauge (4) .
Cut a tube. The tube will supply the water from valve (5) to the water bottle (6) .
Reconnect the electrical connector to the pump (7) .
Turn on the water spray system.
Use valve (5) to regulate the flow and the pressure of the water from the pump (7) .
Record the various readings of water flow and the pressures. Compare the results with the following table.
Table 2
Water Pump    
Pressure (psi)     Output flow (gpm)    
172 kPa (25 psi)    
3.5 .5 L/min (0.92 0.13 US gpm)    
0 kPa (0 psi)    
8.3 .5 L/min (2.19 0.13 US gpm)