Grundfos CR 95, CR 125 & CR 155 Series needs a special tools for seal replacment
Special tools are required to replace the shaft seal on the CR(N)95, 125, and 155 pumps up to 75HP. It is recommended to have these tools available before the need for seal replacement arises. The tools are listed below and can be ordered through your typical Grundfos sales organization.
*Note that a standard interchangeable head torque wrench with a 14mm x 18mm drive may be used. Please review the attached service instructions and service parts catalog for all required tools and spare parts.
99072586 SERVICE TOOL, SHAFT SEAL, D22
00SV0402 SPECIAL TAP 14X18XD14
00SV0400 TORQUE WRENCH 40-200NM*