Instructions - Parts ™ Dura-Flo Lowers 311825F ENG Carbon Steel or Stainless Steel Lowers, with Severe-Duty Rod and Cylinder. Dura-Flo 1800 (430 cc) Lowers Dura-Flo 2400 (580 cc) Lowers Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. See page 3 for model information, including maximum working pressure.
Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pressure Relief Procedure . . . . . . . . . . . . . . . . . 6 Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . .
Models Models Lower Part No.
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode.
Warnings WARNING MOVING PARTS HAZARD Moving parts can pinch or amputate fingers and other body parts. • Keep clear of moving parts. • Do not operate equipment with protective guards or covers removed. • Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
Repair Repair Pressure Relief Procedure Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts. 1. Engage trigger lock. 2. Shutoff the pump: a. For air-powered pumps, close the bleed-type master air valve. b. For hydraulic-powered pumps, close the supply line shutoff valve (U) first, then close the return line shutoff valve (V). Required Tools • • • • • • • • • • • Set of socket wrenches Set of adjustable wrenches 24 in.
Repair Disassembly Lay out all the removed parts in sequence, to ease reassembly. Clean all parts with a compatible solvent and inspect them for wear or damage. Refer to FIG. 1. Repair Kits are available to replace the throat (T) and piston (P) packings, and to replace the o-rings and cylinder seals. For the best results, use all the new parts in the kit. Kit parts are marked with an asterisk, for example (11*). These kits also can be used to convert the lower to different packing materials.
Repair Reassembly 1. If the ball guide (9) was removed, place the flats of the displacement rod (1) in a vise. Apply anti-seize lubricant 222955 to the threads and mating faces of the rod and the ball guide. Screw the ball guide onto the rod, hand tight. Remove from the vise. See FIG. 1. 2. Install the piston packings (P) on the piston (12) in the correct order for your lower, see Repair Kits, pages 16-20. Install the v-packings one at a time with the lips facing up.
Repair 1 Torque to 156-171 N•m (115-126 ft-lb). 2 Torque to 135-169 N•m (100-125 ft-lb). For 241648, 249991, and 15F298, limit torque to 27-40 N•m (20-30 ft-lb). 3 Torque to 459-481 N•m (338-354 ft-lb). 4 Torque oppositely and evenly to 244-264 N•m (180-195 ft-lb). 5 Apply anti-seize lubricant to threads and mating faces. 6 Lubricate. 7 Apply thread lubricant. 8 Use arbor press to drive into cylinder (7). 9 Unscrew plug from valve housing and clean. 10 Torque to 30-38 N•m (22-28 ft-lb).
Repair 10 311825F
Parts Parts 20 3 6* *2 33 1 19 34 35 7 *5 6* 4 14 16 9 15 27* *2 17 10 12 TI8340a 311825F 11
Parts Dura-Flo 1800 (430 cc) Lowers See the parts drawing on page 11. Part numbers vary by lower. To find the part number used in your lower, read down the chart to find the desired ref. no., then read left to right to find the part number for your lower. Carbon Steel Lowers Lower Part No. Lower Part No. Ref. No.
Parts Stainless Steel Lowers Lower Part No. Ref. No.
Parts Dura-Flo 2400 (580 cc) Lowers See the parts drawing on page 11. Part numbers vary by lower. To find the part number used in your lower, read down the chart to find the desired ref. no., then read left to right to find the part number for your lower. Carbon Steel Lowers Lower Part No. Ref No.
Parts Stainless Steel Lowers Lower Part No. Ref No.
Repair Kits Repair Kits UHMWPE and PTFE Packings Throat Packings For Part No. 687055 Dura-Flo 1800 (no kit number) Piston Packings 25* *11 *35 34* *26 36* 29* TI8389a1 *33 TI8389a2 222845 Repair Kit, for Dura-Flo 1800 (standard for 222805, 241956, L430CS, L430SS) Ref. Part No.
Repair Kits PTFE and Leather Packings Throat Packings 222847 Leather/PTFE Backup Conversion Kit, for Dura-Flo 1800 Piston Packings 25* *11 *34 13* *30 26* 29* TI8389a1 *33 TI8389a2 222849 Repair Kit, for Dura-Flo 1800 (standard for 222796) Ref. Part No. Description Qty 11* 184232 GLAND, male, piston; stainless steel 1 13* 184312 V-PACKING, piston; leather 2 Ref. Part No.
Repair Kits PTFE Packings Throat Packings Piston Packings 25* *11 *34 26* 29* TI8389a1 *33 TI8389a2 222846 Repair Kit, for Dura-Flo 1800 (standard for 222998) Ref. Part No.
Repair Kits UHMWPE and Leather Packings Throat Packings 222878 Conversion Kit, for Dura-Flo 2400 Piston Packings 25* *11 *35 13* *30 36* 29* TI8389a1 *33 TI8389a2 222848 Repair Kit, for Dura-Flo 1800 (standard for 246925) Ref. Part No. Description 11* 184232 Ref. Part No.
Repair Kits 253745 Repair Kit, for Dura-Flo 2400 (standard for 249991, L580SM) Limit packing nut torque to 27-40 N•m (20-30 ft-lb). Ref. Part No.
Dimensions Dimensions Lower Model A mm (in.) B C Weight kg (lb) Dura-Flo 1800 533 (21) 2 in. npt(f) 1-1/2 in. npt(m) 33 (72) Dura-Flo 2400 533 (21) 2 in. npt(f) 1-1/2 in. npt(m) 33 (73) A C TI8341a B Technical Data Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . See Models, page 3. Lower effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dura-Flo 1800 (430 cc): 18 cm2 (2.79 in.2) Dura-Flo 2400 (580 cc): 24 cm2 (3.72 in.2) Fluid inlet size. . . .
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.
