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Repair - Parts
Old Proportioning Pumps
For proportioning pumps used on Gusmer and Old Graco H-25 and H-XP2 Hydraulic
Proportioners.
Important Safety Instructions
Read all warnings and instructions in this manual
and in your proportioner manual. Save these
instructions.
See page 2 for model information, including
maximum working pressure.
A-Side Pump
311391F
B-Side Pump
TI7735c
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Table of Contents
Related Manuals for Graco GUSMER H-25
Summary of Contents for Graco GUSMER H-25
- Page 1 Repair - Parts Old Proportioning Pumps 311391F For proportioning pumps used on Gusmer and Old Graco H-25 and H-XP2 Hydraulic Proportioners. Important Safety Instructions Read all warnings and instructions in this manual and in your proportioner manual. Save these instructions.
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Page 2: Table Of Contents
Pressure Relief Procedure ....3 Graco Information ......10 Preventive Maintenance . -
Page 3: Repair
Repair Repair Flushing Preventive Maintenance When the pumps are functioning properly, it is not unusual for a trace amount of resin to seep past the pump packing onto the resin pump shaft. Routinely inspect the shaft and wipe away any residue when the proportioner is turned off. -
Page 4: Pump Base Reassembly
Repair Pump Base Reassembly 4. Remove the four screws (225) joining the upper (237) and lower (236) pump bases. Remove the upper base and two o-rings (207, 213). 1. Install the inlet valve in the lower pump base: 5. Remove the inlet valve assembly from the lower ®... -
Page 5: Piston And Cylinder Seals
Repair Reassembly Piston and Cylinder Seals CAUTION To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocy- anate) and component B (resin) parts. 1. Assemble the piston parts on the piston body, using Piston Seal (218*) and Cylinder Seal (219†) Repair the new parts in the piston seal kit (218*). -
Page 6: Parts
Parts Parts †219c †219d †219a A Side Pumps †219b †219a †219c B Side Pumps Piston Assembly TI8047b 218d* 218c* TI7729b 239 (Ref) 218b* 218a* Piston Assembly (alternate) Table 1 : Torque Specifications Pump Torque (ft-lbs) 218c* 218d* TI8048b 239 (Ref) 311391F... - Page 7 Parts Ref. Part Description Qty. Ref. Part Description Qty. 219a† . SEAL, cylinder 296640 O-RING; fluoroelastomer 219b† . BUSHING, grease; used on 296641 RING, backup; PTFE B-side pumps only 111279 BALL, valve, outlet; 7/16 in. (11 219c† . GASKET mm) diameter 219d†...
- Page 8 Parts Table 2. Proportioning Pump Parts Matrix Pump Sizes and Part Numbers #104 #112 #120 296757 297675 296807 296750 295155 295156 296806 296749 295044 295045 Part 295043 296799 296800 296801 296802 295050 295051 296748 Ref. only) only) 295053 295054 295055 295056 296646 295058...
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Page 9: Technical Data
Technical Data Technical Data Category Data Maximum working pressure 3500 psi (24.0 MPa, 240 bar) Maximum fluid temperature 190°F (88°C) Viscosity range 250-1500 centipoise Maximum material inlet pressure 400 psi (2.7 MPa, 27 bar) Wetted parts Carbon Steel, Stainless Steel, Chrome Aluminum, PTFE, Acetal, UHMWPE, fluoroelastomer ®... -
Page 10: Graco Standard Warranty
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.