Repair-Parts Repair Kits Accessory Kits See page 10 Merkur® High Pressure Displacement Pump 332246B EN High pressure carbon steel pump for protective coatings. For professional use only. See page 2 for model information, including maximum working pressures. Important Safety Instructions Read all warnings and instructions in this manual. For complete warnings and instructions see your sprayer manual. Hazard symbols refer to specific procedure risks. Save all instructions.
Related Manuals Contents Related Manuals Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Component Identification . . . . . . . . . . . . . . . . . . . . 3 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Parts . . . . . . . . . . . . . . . .
Component Identification Component Identification A B C F E G D ti21064a FIG. 1.
Repair Repair General Information NOTICE Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing. Always use Genuine Graco Parts and Accessories, available from your Graco distributor. If you supply your own accessories, be sure they are adequately sized and pressure rated for your system. Preparation Follow all warnings and instructions in your pump manual for the following preliminary steps: Threads are very sharp.
Repair 11. Remove the upper cylinder seal (28*). Reassembly 12. Clamp the piston in a vice. Use a hex wrench to remove the nut (17†) from end of piston. 1. Clean and inspect all parts. • • NOTICE Replace all o-rings removed from the pump. Compressed o-rings may cause the pump to leak. 16U916: 7 mm (1/4 in.) hex 16U917: 13 mm (1/2 in.) hex 2. Lubricate and install upper cylinder seal (28*). 3. Assemble the female gland (9*), v-packings (7*, 8*), and male gland (6*), as shown.
Repair 6. Assemble the male gland (11*), v-packings (12*, 13*), and female gland (14*), as shown. Alternate the v-packings, with the lips facing up. Lubricate the packings. Install the spring (10*) and packing stack into the bottom of the upper cylinder (1). 5 8. Place piston in vice and torque flow-through nut (17†) as specified in the following table. Displacement Pump Torque 16U916 54-66 ft-lb (73-89 N•m) 16U917 74-86 ft-lb (100-117 N•m) 4* 1 3 10* ◆16 11* †15 †18 ti11692a †17 FIG. 5.
Repair 11. Lubricate the threads and screw the lower cylinder (2) onto the upper cylinder (1). Torque to 90.5-109.5 ft-lb (123-149 N•m). 13. Lubricate the seal (25*†) and threads of the lower cylinder (2). Place the ball (24◆) on the seat (22†). 25✓ 24✓ 1 22✓ 26✓ 23 3 ti21070a FIG. 7. Replace intake ball and seat. 21* ti21069a 2 14. Keep upright to screw the housing (23) into the lower cylinder (2) hand tight, so the seat remains firmly in place.
Parts Parts 35 34 1 Lubricate. 2 Torque varies by lower size. 16U916: 54-66 ft-lb (73-89 N•m) 16U917: 74-86 ft-lb (100-117 N•m) 3 Torque to 54-66 ft-lb (73-89 N•m) 4 Torque to 90.5-109.5 ft-lb (123-149 N•m) 5 Apply thread lubricant.
Parts 16U916, Merkur X72 16U917, Merkur X48 Ref. Description CYLINDER KIT, upper; includes 1 21, 28, 32, and 33 (qty. 1) 16U916 16U917 CYLINDER KIT, lower; includes 2 21 and 25 16U916 16U917 PISTON/ROD, assembly; 3 includes 15-18, 36, and 37 (qty. 1) 16U916 16U917 SPRING, throat 4* WET CUP; includes 28 (qty.
Repair Kits Repair Kits Description 16U916 16U917 Seal Repair Kit Throat v-packings (7* and 8*) and glands (6* and 9*), piston v-packings (12* and 13*) and glands (11* and 14*), o-rings (18*, 21*, 25*, 26*, and 33*), and springs (4*and 10*) *24A252 *24A253 Seat Repair Kit - Tungsten Carbide (Standard) †24A782 †24A783 ◆24A261 ◆24A263 ◆24A667 ◆24A669 Seats (15† and 22†), o-rings (18†, 21†, 25†, and 26†), and flow-through nut (17†) Check Ball Kit - 440 Stainless Steel (Standard) Piston ball (16◆)
Dimensions Dimensions 16U916 16U917 A A C C B B ti21072a FIG. 8 Displacement Pump A (Height*) B (Inlet Size) C (Outlet Size) Weight in. (mm) in. npt in. npt lbs (kg) 16U916 15.2 (386) 1-1/4 in. 3/8 in. 15.5 (7) 16U917 15.7 (399) 1-1/4 in. 3/8 in. 16.1 (7.3) * Height measured at mid-stroke.
Technical Data Technical Data Merkur High Pressure Displacement Pump Maximum Operating Temperature Stroke Length Wetted Parts Maximum Fluid Working Pressure 16U916 16U917 Inlet/Outlet Sizes Fluid inlet size Fluid outlet size 12 US Metric 160°F 71°C 2.5 in. 63.5 mm carbon steel, tungsten carbide, UHMWPE, PTFE 7200 psi 4800 psi 50 MPa, 500 bar 33 MPa, 330 bar 1-1/4 in. npt 3/8 in.
Technical Data 332246B 13
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
