Graco 15H882 User Manual

Instructions
15H882 Slider Bearing Kit
To replace slider bearings on E-Flo® Electric Circulation Pumps.
Important Safety Instructions
311616B
ti8719a

Pressure Relief Procedure

Pressure Relief Procedure
System pressure can cause the pump to cycle unex­pectedly, which could result in serious injury from splashing or moving parts.
1. Set START/STOP switch to STOP.
2. Push in SECURE DISABLE switch.
3. Open the back pressure regulator and all fluid drain valves in the system, having a waste container ready to catch drainage. Leave open until you are ready to pressurize system again.
4. Check that pressure gauges on fluid supply and return lines read zero. If gauges do not read zero, determine cause and carefully relieve pressure by VERY SLOWLY loosening a fitting. Clear obstruc­tion before pressurizing system again.

Kit Installation

Disassembly
1. Jog the motor to bring the pump on the side being repaired to the bottom of its stroke. This provides access to the coupling nut (14).
2. Relieve pressure, page 2.
3. Shut off electrical power to the unit.
4. Remove two screws (12) and the cover. F shows the cover (32) on the stand side; the motor side cover is (21).
9
Place clean rag over slider cylinder (2).
10
Hold slider piston (9) flats with 3/4 in. wrench, and brace against tie rod (3).
IG. 1

Kit Parts

Slider Bearing Kit 15H882 includes parts to rebuild both slider bearing assemblies. Parts included in the kit are marked with an asterisk, for example (5*). Use all the new parts in the kit.
Ref. No. Part No. Description Qty
5* n/a SCREW, cap, socket-head; 5/8-11
x 3 in. (76 mm) 8* n/a SLIDER BEARING 4 12* 116719 SCREW, 8-32 hex washer head 4
Parts designated n/a are not available separately.
3
4
FIG. 1. Remove Coupling Nut
32
9
10
14
12
ti9223a
2 311616B
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