8
D.- Hydraulic Power Setting.
If over the time the pressure decreases , the oil chamber should be resetted by following the steps
below:
1. Dismantle as shown in “
C
” until the hydraulic unit is detached.
2. Hold carefully , in horizontal position, the assembly of part cylinder-holder (2005) ensuring that one
of the slot-hole stays upwards.
3. Introduce in the slot-hole one of the 2 side support pin screws (2004) avoiding that part fi xed
cylinder (2031) turns.
4. Loosen screw (0215).
5. With a key (DIN 1804) screw part (2024) into cylinder-holder (2005). Normally it should turn 360º
as maximum.
6. Assemble it on the vice and check if the pressure is restored.
E.- Hydraulic oil fi lling up.
1. Dismantle as shwon in “
C
” above.
2. Unscrew the allen set screw (0215) and cap (2024) from cylinder-holder (2005). Do not mislay the
belleville springs (0213) and holder (2026).
3. Replace seal (0009-90; 2032-125/160/200) into cylinder-holder (2005) (with the sealing lips towards
bottom).
4. Introduce fi xed cylinder (2031) into cylinder-holder (2005) matching the holes of both parts.
5. Fit support pin screw (2004) in their lodgements and with an air line pressurise for the seal (0009-
90; 2032-125/160/200), self-fi t in position.
6. Helping with support pin screws (2004), push parts (2031) and (0009-90; 2032-125/160/200) until
the end of cylinder-holder (2005).
7. Pour hydraulic oil through the central hole of part (2031) until the level reaches the top, checking
that the oil chamber is completely free of
air bubbles
. If required, stir with a clean wooden toothpick
or similar and refi ll to the top.
8. Now, without taking out the allen set screws, replace gently seal (0410-090; 2033-125/160/200) into
small piston (2029) and introduce it into fi xed cylinder (2031).
9. Replace the belleville springs (0213), the holder (2026) and threaded spindle (2008) and screw the
cap (2024). Screw this cap with a key (DIN 1804) until the end. Replace screw (0215).
F.- Final setting and regulating.
Whether a power setting on or an oil refi lling has been completed, check if the operation has been
successful, before fi tting the spindle in the vice.
1. Assemble with screw (0202) the hydraulic unit with the clutch unit.
2. Hold the assembly – by the threaded spindle- in horizontal position and introduce an allen set screw
into the hole of fi xed cylinder (2031).
3. Fit the handle and make the whole movement. When turning it must check for the slight treshold
pressure. The clutch must cover the whole movement until making mechanical stop. If so, the
assembly is correct.
4. If the mechanical stop is not acheived, unscrew the cap (2024) and try it again.
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