For official torque settings, clearance tolerances, and exploded-view diagrams, you should refer to the specific Instruction and Maintenance Manual tied to your unit's serial number. You can typically request a replacement manual directly from Howden by providing the equipment's nameplate details.
Howden XRV 127 is a positive displacement, oil-injected rotary twin screw compressor specifically designed for the refrigeration and natural gas markets. The XRV 127 Service Manual