
2 3
Engineering Data
MA-15M............................................................ 3
MA-15H ............................................................ 4
MA-25L............................................................. 5
MA-25M............................................................ 6
MA-40L............................................................. 7
MA-40M............................................................ 8
SC-30 ............................................................... 9
SC-30H........................................................... 10
SC-45L ........................................................... 11
SC-45 ............................................................. 12
SC-45H........................................................... 13
SC-65L ........................................................... 14
SC-65 ............................................................. 15
SC-65H........................................................... 16
RO-23............................................................. 17
RO-38............................................................. 18
RO-64............................................................. 19
Dimensional Data ...........................................20–21
Installation, Operation, Lubrication, Maintenance
and Storage Instructions....................................... 22
Safety ............................................................. 22
Storage............................................................ 22
Pump Location and Piping Design...................... 22
Suction Piping ............................................22–23
Acceleration Head ............................................ 23
Discharge Piping .........................................23–24
Bypass Piping .................................................. 24
Lubrication ...................................................... 24
V-Belt Drive ............................................... 24, 26
Suggested Piping System for Plunger Pumps ...... 25
Direction of Rotation......................................... 26
Automatic (Safety) Shutdowns........................... 26
Crankshaft Assembly............................................ 26
General ........................................................... 26
Tapered Roller Bearings ...............................26–27
Installing Crankshaft ............................................ 27
General ........................................................... 27
Shim Adjustment of Tapered Roller Bearings....... 27
Installation of Crankshaft Oil Seal ...................... 27
Connecting Rod, Crosshead and
Crosshead Pin Assembly....................................... 27
General ......................................................27–28
Installing Wrist Pin Bushings............................. 28
Pinning the Crosshead .................................28–29
Order of Assembly ............................................ 29
Precision Crankpin (Crankthrow) Bearings........... 29
Wiper Box Assembly............................................. 29
General ........................................................... 29
“Poly Pak” Seal ..........................................29–30
Mechanical Oil Seal.......................................... 30
Inserting the Plunger ........................................ 30
Stuffing Box, Packing and Plunger Assemblies ....... 30
General ........................................................... 30
Spring Loaded Packing ................................30–31
Hi/Lo Gland Adjustable Packing......................... 31
Inserting the Plunger ........................................ 31
Installing the Gland .......................................... 31
Installing the Stuffing Box............................31–32
Connecting the Plunger..................................... 32
Packing ........................................................... 32
Plungers.......................................................... 32
Converting Plunger to Piston.............................. 33
Changing Piston Cups ....................................... 33
Disc Valve Systems and Abrasion Resistant ............ 33
General ........................................................... 33
Disc Valve and Abrasion Resistant Valve
Construction .................................................... 33
Setting the Valve Seat....................................... 34
Installing the Valve Seat.................................... 34
Installing O-Rings, Abrasion Resistant Spring
and Cage ......................................................... 34
Installing Disc, Spring, Disc Valves and Stem...... 34
Valve Spring Options......................................... 34
Valve Disc Options............................................ 35
Pulling the Valve Seat ....................................... 35
Salvage of Worn Seats....................................... 35
Other Pump Brands .......................................... 35
Trouble Location and Remedy ..........................35–37
Parts Lists......................................................38–59
Warranty ............................................................. 60