HTC 500 Service Manual page 40

37. Apply a flange seal to the edge of the edging strip to seal the machine. The machine must
be sealed so that dust and water cannot get in. Use Loctite 5970 flange sealant. See Fig. 12.
38. Once the machine is sealed, press down the cover. It can be difficult to get the tensioning
wheel shafts in the right place. The simplest solution is to use a rigging screw as illustrated
in Fig. 13. Thread the rigging screw into a fixing boss and then pull the tensioning wheel
shaft into its correct position. It may be necessary to give it a light tap with a non-rebounding
hammer to get it into position.
39. An alternative is to strike the tensioning wheel into the correct position according to Fig. 14.
40. Once everything is in place, apply grease to the ball bearings and fit the cover. Replace the
screws that were originally removed with new screws and make sure they are tightened.
NOTE! Never use the same screw twice!
41. Refit the grinding holders. Turn the grinding holders several turns before turning over the
grinding head.
Fig. 12
Fig. 13
40
Fig. 14