Unplug the extension cord from the Controller.
The following Blower Inspection Instructions do not apply to the large blowers for the 20M or
80M Provers. Those blower motors should be inspected and maintained by fully trained and
qualified personnel.
Blowers
1.
Inspect the tightness of the Blower armature brush caps at least once every three (3) months.
Carefully re-tighten the brush caps if they are loose, or replace. Switch blower plug connection
to the controller once a month to ensure equal wear on both blower brushes.
2.
Inspect the armature brushes for wear at least every 400 hours of operation, or as required by
apparent changes in sound and arcing. A significant increase in heat can be generated by
brushes less than 1/2 inch in length, increasing current and resulting in a premature failure of
the blower(s).
3.
Remove brush and measure length of square carbon. it should be 1/2” or longer. If not it
must be replaced.
4.
Install the brush.
5.
Re-attach the armature brush caps.
6.
Exchange #1 blower to #2 blower each month for averaged usage on the main blower #1.
Turn the Controller power "OFF" and remove Master Meter(s).
7.
Turn each Blower off by moving its individual power switch to the "OFF" position.
8.
Unplug each Blower power cord from the Blower ports (labeled "BLOWER 1" and "
BLOWER 2") on the Controller.
9.
Plug each Blower power cord (one at a time) into a 120 VAC electrical power source.
10.
Turn the corresponding Blower power switch to the "ON" position.
11.
The Blower motor bearings are good if the motor sounds "smooth".
12.
Repeat the above steps (1 through 11) for the other Blower.
Prover Cart
10M Only
1.
Check the air pressure in the Prover Cart’s tires at least once a year. Maintain tire pressure
at 30 psig.
All Provers
2.
Clean the frame, wheels, tool box, and exterior surfaces of the Master Meter(s) with a
damp cloth and compressed air, as needed.
3.
Inspect the inside of the Silencer(s) at least once every three (3) months for obstructions and
loose noise absorbing material.
4.
Inspect all cables for frays. Replace as required.
Accessories
1.
Inspect all flexible hoses, caps, and plugs for damage. Replace as required.
2.
Clean the quick-disconnect couplings once every three (3) months using a degreaser. If the
quick disconnect is removed from the Master Meter, apply a thin film of aluminum anti-seize
compound on the male threads before reinstalling.
3.
Once a month, inspect all electrical cables for damage and to ensure that the connectors are
clean and pins/contacts are straight.
4.
Inspect the Instrument Drive (ID) Pulser for damage prior to and after each use.
5.
Inspect the Optical Scanner for damage prior to and after each use.
42
ROOTS
®
Model 5 Prover Software Manual