Servicing The Fluid Pump - AIRLESSCO LP400 ALLPRO 410E Service & Operation Manual

SERVICING THE FLUID PUMP

NOTE: Check everything in the Troublshooting Chart before disassembling the Fluid Pump.
Fluid Pump Removal - Refer to Figure 11
1. Follow the Pressure Relief Procedure page 10.
2. Flush the material you are spraying out of the machine.
3. Remove the connecting rod shield (331-111).
4. Move the piston rod (331-093) to its lowest position by cycling pump slowly or by rotating the motor fan.
5. Remove the grey wire from the Pressure Control Switch.
6. Remove the retaining ring (331-062) from the connecting rod (331-038) and slide the sleeve (331-117)
down revealing the connecting rod pin (331-065).
7. Remove the suction assembly from the fluid pump body (331-011) by unscrewing the suction nut (331-034)
with the packing adjustment tool.
8. Using a 1/2" wrench unscrew the two bolts (100-318) from the cover assembly 331-234). The fluid pump
will be hanging loosely at this point.
9. Remove the connecting rod pin (331-065) out of the connecting rod (331-038), allowing the removal of the
fluid pump (331-209) from the machine.
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FIGURE 11