V1.00-2021.03.22
Operating instructions for SAMBO Bevel
2. Rotate the gearbox handwheel or wrench nut several turns until there is positive engagement between
the valve stem and the gearbox Stem Nut.
3. Rotate the handwheel to lower the gearbox onto the valve until contact has been made with the valve
flange.
4. Bolt the gearbox securely to the valve mounting flange.
6.2
Installing a Gearbox with a Blank Stem Nut – V0 through V9
1. Remove the two threaded Lock Nuts (item no. 7) from the Drive Sleeve (item no. 6), accessed through
the top of the Housing (item no. 1).
2. Remove the Stem Nut (item no. 5) from the Drive Sleeve (item no. 6) through the top of the Housing
(item no. 1).
3. Machine the Stem Nut (item no. 5) to suit the valve stem.
CAUTION:
Care must be taken to ensure that the clamping devices used during machining do not
damage splined surfaces of the Stem Nut.
4. Reinstall the Stem Nut (item no. 5) into the Drive Sleeve (item no. 6), ensuring the splines are properly
engaged.
5. Reinstall the two threaded Lock Nuts (item no. 7) into the Drive Sleeve (item no. 6).
6. Mount the gearbox on the valve.
6.3
Installing a Gearbox with a Blank Stem Nut – V35H through V9H
1. Place the gearbox upside down to access the mounting base.
2. Remove the Socket Head Cap Screws (item no. 34) which mount the Thrust Base (item no. 31) to the
Thrust Housing (item no. 2).
3. Remove the Thrust Base (item no. 31) and Gasket (item no. 32) from the Thrust Housing (item no. 2).
CAUTION:
Care must be taken to ensure that the O-ring (item no. 15) located in the Thrust Base
(item no. 31) is not damaged during disassembly.
4. Remove the Stem Nut (item no. 5) and lower Thrust Roller Bearing (item no. 33).
5. Remove the upper Thrust Roller Bearing (item no. 33). Place all bearings in a clean, dry area until
reassembly.
6. Machine the Stem Nut (item no. 5) to suit the valve stem.
CAUTION:
Care must be taken to ensure that the clamping devices used during machining do not
damage splined surfaces of the Stem Nut (item no. 5).
7. Remove the Stem Nut (item no. 5) and lower Thrust Roller Bearing (item no. 33).
8. Remove the upper Thrust Roller Bearing (item no. 33). Place all bearings in a clean, dry area until
reassembly.
9. Machine the Stem Nut (item no. 5) to suit the valve stem.
10. Place the Gasket (item no. 32) onto the Thrust Housing (item no. 2).
11. Separately, install the O-Ring (item no. 15) in the Thrust Base (item no. 31).
12. Install the Thrust Base (item no. 31) with O-Ring (item no. 15) onto the Thrust Housing (item no. 2) and
Stem Nut (item no. 5), using Socket Head Cap Screws (item no. 34).
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