Assessments - 3, GPA: 4.7
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Piston (Fig. 1) 1. Remove the intake valve as explained in Intake Valve. 2. Pull the cylinder (38) down, off the piston assembly. 3. Unscrew the piston retainer screws (25). Remove the piston parts from the displacement rod (36). 4. Clean all parts thoroughly, and inspect them for wear or damage. Replace parts as needed. 5. Place the gasket (49) and ball (16) on the piston retainer (43). Install these parts in the displacement rod. NOTE: The piston retainer (43) must not obstruct the ports in the displacement rod (36). 6. Install one cup packing (31*) on the displacement rod (36). Be sure the lips of the packing face up. 7. Install the packing spacer (30). Position one cup packing (31*) on the displacement rod so the lips of the packing face down. 8. Install the piston guide (35). Install the four screws (25) through the piston assembly and screw them into the displacement rod (36). Torque the screws evenly to 30–40 ft-lb (41–54 Nm), using a crisscross tightening pattern. 9. If no further service is needed, go to Throat Packings. If no further service is needed, slide the cylinder (38) and gaskets (24*) over the piston assembly. Install the intake valve. Torque the nuts (13) evenly to 50–60 ft-lb (68–81 Nm). . . Service Fig. 1 13 14 41 36 Lower Holes 28 *15 42 18** 38 32 24* 39 Torque to 50–60 ft-lb (68–81 Nm) Tighten in a criss-cross pattern THROAT PISTON 39 47 *46 *44 41 45* Lips of V-packings must face down 36 *15 28 †16 49 43 *31 30 *31 35 25 Torque to 30–40 ft-lb (41–54 Nm) Service Throat Packings (Fig. 1) 1. Remove the intake valve and the cylinder (38) as explained in the previous sections. 2. Remove the packing nut/wet-cup (39). 3. Pull the displacement rod (36) out of the bottom of the outlet housing (41). 4. Remove the throat packings and glands from the outlet housing. 5. Clean all parts thoroughly, and inspect them for wear or damage. Replace parts as needed. NOTE: Always replace the male gland (44) and the bearing (47) when the throat packings are replaced. 6. Install the throat packings into the outlet housing (41) one at a time in the following order, with the lips of the v-packings facing down: the male gland (44*), two UHMWPE v-packings (45*), one leather v-packing (46*), one UHMWPE v-packing (45*), one leather v-packing (46*), one UHMWPE v-packing (45*), and the bearing (47). Loosely install the packing nut/wet-cup (39). 7. Push the displacement rod (36) up into the outlet housing (41) until it protrudes from the packing nut/wet-cup (39). Continue reassembling the pump in the reverse order of disassembly. Tighten the packing nut/wet-cup just tight enough to prevent leakage. Reconnecting the Displacement Pump 1. Reinstall the displacement pump on the motor as explained in your separate pump manual. 2. Reconnect the ground wire to the motor. Check Valve Adjustment The fluid piston and intake valves are factory-set for high-volume pumping of heavy, spray-viscosity fluids. For lighter fluids or lower volume requirements, or to reduce surging at the stroke change-over,decrease the travel of the balls (16 and 18). Move the pins (28) to a lower set of holes. See Fig. 1 and refer to the pump disassembly procedure above. NOTE: If the ball travel is too short for the fluid being pumped, the fluid flow will be restricted. For heavier fluids or to increase the flow,increase the travel of the balls (16 and 18). Move the pins (28) to a higher set of holes. See Fig. 1 and refer to your pump disassembly procedure above. . . Notes . . Parts 39 *46 32 3615282815* 24* 253531* 3031* 434916† †47*45131432 44* †18 41 42 *24 . . Parts Model 210–208, Series F Displacement Pump Includes items 13–49 Ref Part No. No. Description Qty. 13 100–127 NUT, hex; 5/8–11 4 14 100–128 LOCKWASHER, spring; 5/8” 4 15* 100–579 PIN, cotter; 1” (25.4 mm) long 4 16† 101–178 BALL; 1.25” (32 mm) dia.; chrome steel 1 18† 101–718 BALL; 2” (51 mm) dia.; chrome steel 1 24* 111–334 O-RING. PTFE (Square) 2 25 104–272 CAPSCREW, socket hd; 3/8–24 x 1–1/2” (38 mm) long 4 28 161–599 PIN, ball stop; carbon steel 2 30 166–597 SPACER, packing, carbon steel 1 31* 188–846 PACKING, cup; UHMWPE 2 32 171–692 ROD, tie 4 35 171–696 GUIDE, piston; carbon steel 1 36 217–478 ROD, displacement; carbon steel 1 38 181–269 CYLINDER, stainless steel 1 39 186–054 PACKING NUT/WET–CUP carbon steel 1 41 186–055 HOUSING, outlet; ductile iron 1 42 223–437 HOUSING, intake valve; carbon steel 1 43 223–438 RETAINER, piston; carbon steel, with carbide seat 1 44* 104–260 GLAND, male; carbon steel 1 45* 108–845 V-PACKING; UHMWPE 4 46* 104–263 V-PACKING; leather 2 47† 186–056 BEARING; PEEK 1 48 172–477 TAG, warning 1 49 110–728 GASKET; buna–N 1 * Included in Repair Kit 223–439. ** Recommended spare parts. Keep these spare parts on hand to reduce down-time. Extra warnings available at no charge. Packing Conversion Kit 224–443 Use to convert pump to UHMWPE and PTFE (Square) packings. Order kit separately. Includes: Part No. Description Qty (Square) 100–103 PIN, ...
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