59 / 71
Fig. 138
3
Fasten Rear volute case [2] to Front volute case by
tightening ten 5x20 Tapping screws [3] so that Elbow
[1] can be squeezed with the two volute cases.
Fig. 139
4
Install four Compression springs 22 [1] on Rear
volute case.
Note
Two different Compression springs 22 [1] are
used: Install two black ones on the Cushion side
of Frame and two silver ones on the bottom side
of Frame. Be careful not to mix up the two
springs.
When assembling Compression spring 22 [1] to
Spring holder B [2], be sure to rotate the spring
until the end face of the spring stops against the
stopper [3] of the holders.
Fig. 140
5
Fasten Frame [2] to Rear volute case by tightening
four M5x16 Hex socket head bolts [1] into Spring
holder B.
[1]
[2]
[1]
[2]
[3]
[1]
[2]
[3]
