Ingersoll-Rand 2955 Series Service Instruction page 16

Service Steps Reassembly
1
2
16
Power Tools and Industrial Lifting - Customer Technical Service
Use IR Motor #10 Oil to lubricate opening of the Motor Housing.
1. Air port Gasket container(s)
2. Air port Gasket(s)
Insert Air Port Gasket into Air Port Container.
Lubricate Air Port Gasket Container(s) with IR 105 grease.