SECTION 3
OPERATION
INITIAL START-UP
Check that all mounting bolts are tight, piping is installed properly, and the discharge line is open.
Check oil drain plug for tightness. Remove the oil fill cap and fill the pump casing until level is between the
markings on the oil fill cap dipstick, (approximately 3 quarts (2.8 Liters )).
Recommendation oil:
CAUTION:
Pump is required to stop running if the surround temperature is below -10℃.
Before switching on power to the pump, turn the capacity adjustment knob to zero.
Check that all shut-off valves in the suction and discharge lines are open before
increasing the capacity adjustment from zero.
Manual Capacity Control
To adjust pump capacity, loosen the stroke locking screw located in the pump side cover. Pump capacity
is adjusted by turning the micrometer type stroke adjustment knob clockwise to decrease capacity or
counterclockwise to increase capacity as required. The adjustment scale is marked in percent (% ) of full
stroke, with calibration lines on the knob at 1% intervals. After adjusting the knob to the desired capacity
setting, hand tighten the stroke locking screw to maintain the capacity setting.
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 without any discharge pressure and fill the entire pumping system with liquid
before starting pressure tests. A simple method to assure priming of the pump is to install a tee and a
shut-off valve at the discharge connection of the pump.
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.
Surround Temp.
> - 5℃
MOBILGEAR 600 XP 460
Great Wall L-CKD460
Model
GB1200
GB1500 and GB1800
Note: Equivalent oil of other brand is allowed.
Surround Temp.
> - 5℃
MOBILGEAR 600 XP 220
Great Wall L-CKD220
Surround Temp.
-10℃ to - 5℃
MOBILGEAR 600 XP 68
Model
9
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