Bunn AF PR-3 ユーザーズマニュアル

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SERVICE (cont.)
VACUUM/SUPPLY PUMP TUBE INSTALLATION
1.  Separate the pump head from the pump body. 
Hold pump head as shown in Fig. 18, with roller 
in the  2, 6 10 o’clock positions.
2.  Wrap tubing around rollers and hold as shown in 
Fig. 18.
3.  Insert the slot of the tubing key (supplied), as 
shown in Fig. 18 on the rotor so the bottom edge 
of the key is pressing the tubing into the pump 
head cavity.
4.  Push down and turn the key counterclockwise to 
guide the tubing deep into the pump head cavity 
as shown in Fig. 19.
5.  Hold the tubing and rotor in the pump head and 
remove key carefully.
6.  Place pump body on the rotor shaft.
7.  Squeeze the pump body and pump head together 
simultaneously until pump body and pump head 
are touching on all sides. Be careful not to pinch 
the tubing between the pump body and the pump 
head.
FIG. 18  TUBING START POSITION
P1542
ROLLERS
PUMP
HEAD
TUBING
KEY
ENTRY
PORT
EXIT
PORT
FIG. 19 TUBING LOADED
ROTOR
ROTOR
SHAFT
P1541
28791.1 011500