SPX Corporation Rotary Pump R3

Loosen the set screws. Loosen the top and bottom bearing adjusting nuts. This will free rotation of the shafts.

Rotate the top shaft back and forth. Tighten the top bearing adjusting nut, using a spanner wrench, until a slight resistance to the top shaft is felt. Mark the position of the top bearing adjusting nut and back it o one-half turn.

Rotate the bottom shaft back and forth. Tighten the bottom bearing adjusting nut, using a spanner wrench, until a slight resistance to the bottom shaft is felt. Lock the bottom bearing adjusting nut set screw with a screw driver after adjusting.

Turn the top bearing adjusting nut so that the marks line up.

Lock the top bearing adjusting nut set screw with a screw driver after aligning marks.

If bearing adjustment has been performed and the shafts are still loose, replace the bearing. Rotate the shafts back and forth 180o during bearing adjustment. Putting a crescent wrench on shaft squares will make turning of the shafts easier.

Sign off on the bearing adjustment

Pump discharge pressure tends to push the rubber cover gasket and plunger towards the front of the pump. This pressure compresses spring allowing pressure to be relieved by escaping via the rear side of the gasket and the recess of the outer cover. The venting pressure can be set by adjusting spring tension with the adjusting nut.

1. Place a pressure gauge in the downstream line close to the pump; between the pump and other downstream equipment.

2. Place a shut-o valve in the discharge line immediately downstream from the pressure gauge. Leave the valve wide open.

3. Loosen the lock nut and turn the adjusting nut clockwise as far as it will go. This is to prevent any venting during Step 4 below.

4. Pump product through system at the desired temperature and adjust the pump speed until the desired capacity is attained.

5. Check the pressure gauge for the desired pumping pressure. Example: 40 psig (2.8 kg/cm2).

6. Determine the venting pressure needed to protect the system. Example: 45 psig (3.15 kg/cm2). Venting pressure must always be higher than the pumping pressure.

7. Now turn the adjusting nut counterclockwise until only two or three threads are engaged.

Warning: Use of chemical solutions could cause severe injury to personnel if contacted. The hazard is especially severe for eyes, skin, or inhalation.

Place a rubber mat under the immediate area of the pump to protect the parts which may drop accidentally.

R1, R2, R3 and R3HD Pumps Only. Remove the four hex nuts, cover and gasket from the pump body.

R4, R4HD, R6 and R6HD Pumps Only. Remove the eight hex nuts, cover and gasket from the pump body.

Remove the two rotors from the pump shafts.

R1, R2, R3 and R3HD Pumps Only. Install the gasket, cover and four hex nuts on the pump body. Tighten the hex nuts. Do Not finger tighten.

R4, R4HD, R6 and R6HD Pumps Only. Install the gasket, cover and eight hex nuts on the pump body. Tighten the hex nuts. Do Not finger tighten.

Rinse outer areas of the pump and gearcase (hand clean if necessary) according to standard plant procedure. For CIP cleaning, add sufficient cleaner to maintain a 1% causticity for the duration of the cleaning cycle. Do not leave the rotors in the pump while cleaning the system.

R1, R2, R3 and R3HD Pumps Only. When CIP of the system is completed, remove the four hex nuts, cover and gasket from the pump body. Discard the used gasket and replace.

1. APV equipment is inspected prior to shipment. When leaving the factory, it is well crated for normal transportation procedures. APV cannot, however, guarantee safe arrival. Therefore, upon receipt of this equipment, check the received items against the packing list for damage or missing parts. Check the packing material thoroughly for small parts.

2. Visually inspect for damage or loss. Damage or loss should be reported immediately to the delivery carrier while present. Following the immediate notication of the lost or damaged parts, a detailed description including quantity, description of the loss or damage, and a cash value should be claimed against the carrier with respect to the guidelines set forth by the responsible carrier’s policies.

APV’s responsibility terminates F.O.B point of manufacture unless otherwise specied per the General Terms and Conditions of Sale as published by APV and amended from time to time. Contact APV Order Services if shipping information is required for handling claims.

3. In the case of damage or loss to the equipment, APV may perform three major functions:

a. Manufacturer Function – APV manufactures quality equipment and stands behind the APV Standard Warranty. Refer to the Standard Warranty.

b. Assessor Function – APV oers assessment services for ling claims. The APV assessor will accurately determine the extent of the damage (or loss) and cost of repairs to the equipment. Reimbursement for this service will be agreed upon prior to the assessment.

c. Repair House Function – APV oers services for repairing the damage(s) or replacement of loss(es) to the equipment. APV has the option to alter the Standard Warranty on refurbished or replacement parts. The cost of this service will be dependent upon the assessment that is made.;

Check all hardware for tightness

Check vented cover for air leakage*

*Applies only to pumps equipped with vented covers.

Check for product leakage in incoming and outgoing lines

Sign off on the weekly rotary pump check