Service Procedures
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Replacing Components
Watkiss Automatic SpineMaster Service Manual - Edited 17/06/04
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3. Knock the Roll Pin out from the LH Blade Return Cam at the end of the
Cam Link Drive Shaft (see Figure 4:35).
4. Remove the Blade Return Cam.
5. Remove the Final Drive Sprocket grub screw.
6. Withdraw the Cam Link Drive Shaft from the RH side of the ASM, enough
to allow the worn Final Drive Sprocket to be removed.
7. Replace the Final Drive Sprocket with a new one and re-assemble the
Shaft using a new Spirol Pin.
8. Once the Final Drive Chain has been refitted, ensure that the Final Drive
Sprocket is aligned correctly with the Intermediate Drive Sprocket. Tight-
en the grub screw.
9. Re-assemble the ASM. Connect the mains power and test.
4.8.12 Replacing the 24V Motor
The 24V Motor powers the Carriage. It may be at fault if the Carriage does not
operate.
Procedure
1. Switch off the power and disconnect the mains input lead. Position the
ASM so that the RH side is easily accessible.
2. Remove the RH Side Cover.
3. Undo the Connector Block that links the 24V Motor to the rest of the wir-
ing loom.
4. Undo the Trantorque Bush from the 24V Motor Drive (see Figure 4:36).
This will be easier if the Carriage is pulled against the stops at one end of
PARTS REQUIRED
TOOLS REQUIRED
905-343 24V Motor Assy
3mm Allen Key
165-002 M6 Shake-proof washer (3 off)
5mm Allen Key
951-007 Loctite 242
19mm Spanner
Figure 4:35 Blade Return Cam - LH
Roll Pin
Blade Return Cam - LH
