Singer 270 - Singer Service Manual Blower Unit Installation

INSTRUCTI ONS FOR INS T ALLING BLOWER UNIT 16725 7
Fig. 56. Installing Blower Unit
Fig. 57. I nsta ll ing Has ~;; Belt Guard
29
NOTE: Before insta ll ing blower uni t, ossemble be lt
tigh tene r to bottom of ta ble using hinge pin 1 67243
and two collars 54 369 in Posir i ons 1 a nd 2, as shown
in Fig. 56. ln s.\ oll blower connecti on hose belt guard
as shown in Fig . 57.
El~ c tri c Tr ansmitter and Cl oss 270 · Machi ne
should then be installed in usual manner.
Install Blower 167257 beneath the table in the
following sequence · - -
l. Remove machine driving pulley from tronsrtdtfer
shaft.
'/,. ~ l ip blower driviog pulley 167022 on hvb of
of machine driving pulley and securely ti9hten
pull ey set screw 1404 27 .
3. Return machine dr iving p ulley to its former
position on hons mitter shaft, replacing lock
washer and l ocking nut in usual manner.
4. Blower brQcket 167236 is furnished with grom-
met
167037. Grommet is press ed f ille d in
brocket support hole and expan ds im me dia te ly
outside both ends of hole . I nstall blower
brocket on hinge pin with two collo rs 5 4369
in Positions 3 o1 d 4 as s h ow1~ in F ig. 56.
5. Lccote two colla rs 54369 firm ly against gr om -
met 167037 hav ing outs i de colla r fl ush wi th
end of hin ge pin. Se cu r el y tighten two set
screws 465 in ea ch of these t wo co l lar s.
6. Locate small pul ley 167032 on blower shaft
1672 52 . Securely ti ghten pu lley set screw
140862 .
7. Place blower driving bel t 1 670 19 on blower
driving
pu ll ey 167022 .
8. Install machine dri v ing bel t on m achine dr iv ing
pulley ood machine pull ey .
9. L oose n two se t sc rews 465 in eoch of two
co ll ors 54369 ol P osit ions 1 ond 2 os shown
in Fig . 56.