Section 3 Operation; Initial Start-Up; Initial Adjustments - Milton Roy PRIMEROYAL Instruction Manual

INITIAL START-UP

Follow the start up directions in the "Drive" manual (56968) and those listed below.

INITIAL ADJUSTMENTS

"Non-adjustable" Plunger Packing (specified in the pump model number; see Section 1, Model
Code) is preset by internal spring pressure and is complete once the Gland Cap (1660 in fig. 4) is
fully tightened. No adjustments possible
Capacity Calibration
After the first 12 hours of operation, the pump may be tested and calibrated to find the exact
pump capacity under specific operating conditions.
Usually, calibrating the pump at only 100, 50, and 10 percent capacity settings is enough to
indicate pump performance throughout the adjustment range.
The pump can be calibrated by one of two methods carried out in a given time:
1. Measure the decrease in liquid level pumped from a calibrated vessel.
2. Collect and measure pumped liquid at the pump discharge port. (It may be necessary to
create a discharge head (back pressure valve) at the liquid take-off point; otherwise pump
will not operate properly. See Section 2 for ways to do this.)
The first method is recommended for hazardous liquids because it eliminates operator contact
with the liquid.
Filling Pumping System
It is especially important that pump suction and discharge lines be free of entrained air. To
ensure this condition, operate the pump under no discharge pressure and fill the entire pumping
system with liquid before starting pressure tests.
If the pump is idle for long periods, temperature changes in the process liquid may produce
air in the system. To discharge the air, install a valve in the discharge line which will allow the
process liquid to be pumped to exhaust when starting the pump.
SECTION 3
OPERATION
NON-ADJUSTABLE TYPE PACKING
9