10/6/10
888-2629-200
5-37
WARNING: Disconnect primary power prior to servicing.
Section 5 Maintenance and Alignments
Maxiva ULX COFDM Series
5.11.1.5 Cooling System Maintenance Notes
5.11.1.5.1 Coolant Checks:
The pH level of the 50/50 glycol/water mixture should be above 8.0. A PH level that is
below 8.0 indicates that the inhibitors in the glycol are ineffective. Should the PH level
of the mixture drop below 8.0 either additives must be added or the coolant should be
changed. The PH level should be checked regularly with either pH paper or with a pH
meter. If these test items are not available a sample of the coolant can be sent to an
independent service provider for analysis. The pH level should be checked at 3 month
intervals.
The 50/50 glycol/water mixture should be checked at 3 month intervals as well.
5.11.1.5.2 Changing Pumps:
a.
Turn off the transmitter and pump module.
b.
Close the ball (isolation) valves on either side of the pump that is to be
changed.
c.
Disconnect the fittings on either side of the pump.
NOTE:
A small amount of liquid will still be present in the pipe and pump housing, and a
receptacle (bucket) will be necessary to contain the spillage.
!
WARNING:
WEAR SUITABLE PROTECTIVE GLOVES AND EYE PROTECTION WHEN REMOV-
ING. LOOSEN THE CAP SLOWLY SINCE THE COOLANT MAY BE UNDER PRES-
SURE. THE COOLANT MAY ALSO BE HOT.
d.
Remove and replace the pump.
Take care to install the pump so the direction of
flow is maintained in the proper direction.
!
CAUTION:
USE PIPE JOINT COMPOUND OR TEFLON TAPE ON MALE THREADED FITTINGS
AS REQUIRED PRIOR TO REINSTALLATION OF PUMP. USE JOINT COMPOUND
SPARINGLY TO AVOID CONTAMINATION OF COOLANT. IF FITTINGS WITH O-RING
SEALS ARE USED THE O-RINGS SHOULD NOT BE REUSED. USE A NEW O-RING
AND LUBRICATE IT LIGHTLY WITH SILICON GREASE.
Summary of Contents for Maxiva ULX
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