Alignment of Motor:
The motor for the high pressure pump is mounted to a 2 piece base plate that allows the adjustment of the motor position (left and right) without having to loosen the 4 motor mounting bolts. This ‘tension’ bolt is located on the back side of the motor base plate and moves the top section of the motor base plate to adjust tension.
IF the motor and pump pulley are not properly aligned (visually identified by making sure the two pulleys are parallel to each other) , it will usually be a matter of loosening the four motor mounting bolts and slightly shifting the position of the motor until the pulley is ‘squared’ to the pump pulley. The belt will have to be removed to release any tension and allow the motor to be slightly shifted. This is rarely an issue but if the motor has shifted, this is how to remedy motor alignment for correct pulley operation with the high pressure pump as pictured.
Guidelines for Changing the Belt:
• The first thing you want to do is mark the existing location of the pump head base plate against the bottom of the housing. This will help you line it back up easier. A small black sharpie works well.
• Loosen the four bolts on the pump head base.
• Slide the pump head towards the motor. This should allow you to get the old belt off.
• Put the new belt on.
• Slide the pump head back to the marks you made. It is very important that the pump is lined up straight. If not, it will cause premature wear of the belt. To help with this, you can take a small piece of pipe or straight edge to ensure it is square on the outside of the pulley. Your marks will also assist with this.
• The belt should be snug enough once you push the pump head back in place. Make sure it does not flex more than 1/2″.
Motor and Pulley Alignment of Belt with General Type High Pressure Pump
