Smiths Graseby MS16A, Technical & Service Manual

Page: 37 / 61

I s s u e 6 ( F e b r u a r y 2 0 0 5 )
Technical Ser vice Manual
S m i t h s M e d i c a l
4 — 1 0
4
M S 1 6 A S y r i n g e D r i v e r
5. Case assembly
Before the case is re-sealed:
z
ensure that all internal work is complete,
z
seal the case halves using a non-acetic silicone sealant
(e.g. Loctite part number 6815-1544), and
z
follow all instructions supplied with the sealant, observing
recommended practices.
Do not use domestic silicone sealants.
GM1278-C
Apply thin bead of sealant
Take care that no sealant gets onto the motor coupling,
the cam area, the bearings, leadscrew or actuator.
Close case halves within 10 minutes of applying sealant.
Wipe the joint to remove excess sealant before it sets.
NOTES:
1)
2)
3)
(0.5 — 1.5 mm) to shaded area
Extra sealant required in
battery contact area
Leave this region
free of sealant
Figure 4-6 Sealant application
a. Ensure that alternate motor pulses do not differ by more than
20%. See Chapter 5, Testing - Cam Adjustment.
b. Ensure that all traces of original sealant are removed.
c. Check that mating faces are clean and dry using an
isopropyl alcohol cleaner.
d. Apply a continuous thin bead around the inner lip of the
front case half as shown in Figure 4-6 .
Keep the area around the cam and bearing free of sealant.
Note
: Close the case halves within 10 minutes of applying the
sealant.
e) Position the rear case half, checking that the piezo-transducer
disc is centrally placed on the black clip. Secure the case with
three screws. Ensure that a washer is fitted with the screw
beneath the battery cover.
SM0105-4-6.PMD 2/23/2005, 2:56 PM 10