How to tell if your lube lines are leaking, or distribution ports are malfunctioning, or if the pump is failing.
If working correctly:
Watching the analog needle gauge during operation should show the following...
1. The transition from A to 6 should be smooth.
2. The slight pause at 6 to C as the ports charge.
3. The transition from C to 16/E should mimic the smoothness of step 1
4. E to F should hold pressure as long as the Lube-on timer is active.
5. The transition from F to H should be rapid.
6. Ever-so-slight needle slowing action at the end.
Areas of issue:
1. All timing transition take a long time.
A. Pump is failing?
i. remove main line from pump and plug off pump, then test
a. If pump get to correct pressure immediately it is functioning.
b. If pump is slow or does not make it to correct pressure = pump has issue.
B. Leak in Main Lines
i. Locate and repair leak in Main Line.
2. Long pause at 6 to C (only)
A. Sticky distribution port, closing slowly.
i. Replace effected port assembly
3. Long pause at 6 to C and long transition from C to E
a. Issue with distribution port(s) remaining open (or broken)
i. Replace effected port assembly
4. E to F fluctuates of not correct (verify step 1.A.i.b.)
A. Pressure regulator has issue.
i. Adjust or replace regulator.
5. Transition from F to H is slow
A. Pressure relief valve plugged or faulty
If in doubt of the action, email me a video of the gauge when manually activating the lube pump.