Frequently Asked Questions

Question:

Why is my battery powered grease gun not working?

Answer:

If no pressure, there's probably dirt in the ball check. Take the plug off the front of the head, squeeze trigger to pump some grease – be careful to catch the ball that will probably come out with the grease and dirt, re-insert plug.

If not pumping grease, there's usually an air lock or a missing gasket. For an air lock, pull back plunger rod and twist to lock in plunger. While pushing relief valve button on the top of the head apply pressure to plunger rod to release air. To check for gasket, remove cylinder – there should be a black rubber gasket where the cylinder seats into the head. If it's crushed or missing it will have to be replaced – item # 336523.

Take care of your gun and clean regularly. Grease is like glue and will pick up dirt easily.

Question:

Can I use a 12 volt gauge in a 24 or 32 volt system?

Answer:

Yes, with the use of a voltage adapter. You will also need to change the light bulb to a higher voltage bulb.

  24V DC 32V DC
12V Guage 829525-2-D 829525-8-D
Pyrometers 829525-9-D 829525-6-D
Tachometer
(non-hourmeter)
82563B 82564B

Question:

Why doesn't my gauge return to zero (RTZ) when the power is off?

Answer:

The pointer on certain Stewart Warner electrical gauges may come to rest at any point on the dial when power is turned off. When power is turned on the pointer will move to the appropriate position on the dial.

Question:

Why is my (electrical) temperature gauge is not working or shows the wrong temperature?

Answer:

Check for adequate ground connection - improper grounding generally accounts for most gauge inconsistencies.

Ensure that Teflon tape or other sealants have not been placed on the temperature sender threads. These sealants can cause ground isolation from the system creating an improper ground to the gauge.

Ensure that the gauge and sender are compatible. To do this, reference the manufacturer's recommended gauge/sender combination.

Question:

Can I use a competitor's sender with my SW gauge?

Answer:

Some competitive gauges and senders will match SW gauges and senders; however, generally, mixing and matching is not recommended. Electrical characteristics must be determined in advance of installation to ensure compatibility.

Gauges and senders must have the same impedance to function correctly – a 240 ohm gauge should be matched with a 240 ohm sender – fuel level gauge and sender should both be at the same ground potential.

Most temperature gauges are designed to work with one particular sender. Each sender has an electrical element with its own characteristics. It is very difficult to find another manufacturer whose gauge dial angles will match the sender's resistance/temperature curve.

When trying to match temp gauges and senders of different manufacturers, the most critical point on the gauge is the thermostat temperance. If this combination produces a reading that is with-in 5°F of the thermostat temperature, and it stabilizes there, then this combination can be used until you can purchase the gauge and sender combination that was designed to work together.

For best performance, Stewart Warner suggests using a matching gauge and sender combination.