English to Russian Tech/Engineering Energy / Power Generation Воздушные компрессоры

Двигатель и воздушный компрессор. Процесс разборки и сборки (даю ниже контекст).
3. DISASSEMBLY
3.1. MOTOR END
1. Bolt or clamp the air compressor to a secure assembly table.
2. Loosen speed sensor locknut and remove speed sensor.
3. Remove motor fan shroud by removing the bolts and lockwashers.
4. Remove the six fan mounting bolts and washers and remove the fan from rotor.
5. Remove nut and hardened washer from the motor end of the compressor shaft.
6. Mount the ring on the rotor and assemble the hydraulic cylinder and pipe spacers to rotor ring, tighten bolts.
7. Pump pressure on REMOVAL gage until rotor is released from shaft fit.
8. Remove hydraulic cylinder and pipe spacers.
9. Mount the shaft extension on the air compressor drive shaft.
*********
Далее при сборке есть такое:
17. Assemble hydraulic cylinder fixture and pipe spacers to rotor ring, tighten mounting bolts with an impact wrench (Figure 6). Pump pressure to 7000 psi (492,26 Kg/cm2) on the ASSEMBLY gage then release.

Как понять REMOVAL gage и ASSEMBLY gage? Это что за манометры? Манометр СНЯТИЯ и манометр СБОРКИ?

Благодарю заранее.