Heavy Duty Injector Tester Design is well suited for driving intensifier piston of CRIN 4.2 Injectors.
See how it can test in TK1029 Video Channel
TK1026 is upgraded to be able to test CRIN 4.2. Its advanced pump controls allows to feed the injector enough to drive the intensifier piston satisfactorily.
See TK1026 Testing CRIN4.2 in Video Channel