GENERAL / Tightening Precautions for Spilt Flange IMPORTANT: 1. Clean the sealing surfaces. Check if the scratches / roughness that cause leaks and damage of O-ring are found. 2. Use only specified O-rings. In- spect O-rings for any damage. Do not file the O-ring surfaces. When installing O-ring into a groove, use grease in order to hold O-ring in place. 3. While tightening the bolt by hand, check that flange is installed to the port correctly. Do not pinch the O-ring. 4. Tighten the bolts alternately and diagonally, in order to ensure even tightening to the specified torque. 5. Do not use air wrenches.
Using an air wrench often causes tighten- ing of one bolt fully before tighten the others, resulting in damage to O-rings or uneven tightening of bolts. Nut and Bolt Locking WRONG W105-01-01-015 W105-01-01-016 RIGHT WRONG W105-01-01-008 Lock Plate IMPORTANT: Do not reuse the lock plates. Do not try to bend the same point twice. Split Pin IMPORTANT: Do not align the holes in the bolt and nut while loosening. Tighten and align anytime. Do not reuse the cot- ter pins. Wire IMPORTANT: Attach a wire to bolts in the bolt-tightening direction. Do not re- use the wire.
Bend along edge sharply Do not bend it round RIGHT RIGHT WRONG Bend along edge sharply W105-01-01-009 WRONG RIGHT RIGHT RIGHT WRONG Loosen Tighten W105-01-01-010 W1-2-4