Page 2 - OPERATING AND SAFETY PRECAUTIONS
Page 2 of 12 PD03P-XXX-XXX (en) EXCESSIVE AIR PRESSURES TATIC SPARK HAZARDOUS MATERIALSHAZARDOUS PRESSURE WARNING EXCESSIVE AIR PRESSURE. Can cause per- sonal injury, pump damage or property damage.Do not exceed the maximum inlet air pressure as stated on the pump model plate.Be sure material hoses ...
Page 3 - WARNING; EXCESSIVE AIR PRESSURE. Can cause pump; OPERATING INSTRUCTIONS; Always flush the pump with a solvent compatible with; MAINTENANCE; Figure 2
PD03P-XXX-XXX (en) Page 3 of 12 GENERAL DESCRIPTION The ARO diaphragm pump offers high volume delivery even at low air pressure and a broad range of material compatibility options available. Refer to the model and option chart. ARO pumps feature stall resistant design, modular air motor / fl uid sec...
Page 4 - COMMON PARTS
Page 4 of 12 PD03P-XXX-XXX (en) n 637429-XX Fluid Section service kits include: Balls (see BALL OPTION, refer to -XX in chart below), Diaphragms (See DIAPHRAGM OPTION, refer to -XX in chart below) and item 19 (listed below), plus items 144, 174 and 94276 Lubriplate® grease (page 6). y PARTS LIST / P...
Page 5 - ASSEMBLY TORQUE REQUIREMENTS; Torque Sequence
PD03P-XXX-XXX (en) Page 5 of 12 Figure 3 FOR THE AIR MOTOR SECTION SEE PAGES 6 & 7 COLOR CODE DIAPHRAGM BALL MATERIAL COLOR COLOR Hytrel Cream Black ( ) Santoprene Tan Tan Viton Yellow ( ) Yellow ( ) ( ) Dot ASSEMBLY TORQUE REQUIREMENTS LUBRICATION / SEALANTS NOTE: DO NOT OVERTIGHTEN FASTENERS. ...
Page 6 - Indicates parts included in 637428 Air Section Repair Kit.; GENERAL SERVICE NOTES:; er baffl
Page 6 of 12 PD03P-XXX-XXX (en) p Indicates parts included in 637428 Air Section Repair Kit. Item Description (size) Qty Part No. [Mtl] Item Description (size) Qty Part No. [Mtl] 101 Center Body (1) 96466 [PPG] 140 Valve Insert (1) 93276 [CK] 103R Cover (right side) (1) 96488 [D] 141 Valve Plate (1)...
Page 7 - Figure 4; MAJOR VALVE; PILOT VALVE PARTS; MAJOR VALVE REASSEMBLY; LIPS MUST FACE EACH OTHER.
PD03P-XXX-XXX (en) Page 7 of 12 PILOT VALVE PARTS Figure 4 ASSEMBLY TORQUE REQUIREMENTS NOTE: DO NOT OVERTIGHTEN FASTENERS. (123) screw, 4 - 6 in. lbs (0.45 - 0.68 Nm). Apply Lubriplate (94276) to all “O" rings, ”U" cups and mating parts. (134) bolt, 15 - 20 in. lbs (1.7 - 2.3 Nm), wait 10 m...
Page 8 - TROUBLE SHOOTING; Product discharged from air exhaust.; DIMENSIONAL DATA; Figure 5; Pump Model
Page 8 of 12 PD03P-XXX-XXX (en) TROUBLE SHOOTING Product discharged from air exhaust. Check for diaphragm rupture.Check tightness of (6) diaphragm nut. Air Bubbles in product discharge. Check connections of suction plumbing.Check “O” rings between intake manifold and fl uid caps.Check tightness of (...
Page 9 - ACCESSORIES; Figure 6
PD03P-XXX-XXX (en) Page 9 of 12 ACCESSORIES Figure 6 67388 WALL MOUNT BRACKET ASSEMBLY 96507 Wall Mount Bracket Y13-3-T Washer (3) (3/16") Y14-10-S Lock Washer (3) (#10) Y154-52-S Cap Screw (3) (#10 - 24 x 1/2")