JZ1 SERIES PUMP
10.5.2 Install bracket and back cover
1. Install connection bracket
2. Machine seal press plate, machine seal spring into the back cover
3. Install back cover
10.5.3 Mechanical seal installation
Reverse assembly according to the disassembly steps of mechanical seal
(refer to the schematic diagram of mechanical seal structure for mechanical seal structure)
10.5.4 Install impeller
1.Put the flat key into the pump shaft
2.Insert the impeller into the pump shaft
3.Install O - ring on impeller nut and tighten with 120NM.
10.5.5 Install pump front cover and bolts
1. Put O - ring(part 12) into pump head(part 2) sealing groove.
2. Install O-rings(part 13,part 15) in the stator(part 14).
3. Instal the stator assembly into the pump head(part 2),and tight with bolts(part 9).
4. Tight the bolts(part 10),nut(part 11)
5. Install the pump head assembly.
6. Tighten the pump head fixing nut and install torque. See "bolt tightening torque" in chapter 11.
11 Appendix
11.1 Bolt tightening torque
Set bolt and nut torque ±15%
Materials grade A2-70
Nut/bolt
M6
M8
M10
M12
M16
M20
Tightening torque NM
7
18
36
63
143
262
16
