Valve Rocker
Maintenance / Disassembly and reassembly
A5.05. 01.02.02.00
30000
M20
en / 30.09.2010 IB021075 2/3
01
3. Check the surfaces of the ball pin (Fig. 2/10) and adjusting screw (12) for wear and damage. Re-
new parts if as necessary. Undercool and shrink in ball pin with fluid nitrogen to -195 °C. Observe
the marking (x) of the ball pin.
4. Measure valve rocker bush (Fig. 2/13) and axle (Fig. 1/5) and renew bushes on attaining the limit
clearance.
New clearance Limit clearance
0,015 - 0.14 0,2
5. Replace bearing bushes.
5.1 Knock bush (Fig. 2/13) out from valve rocker with suitable brass drift.
5.2 Slightly oil the new bush and press in valve rocker.
DANGER
Observe safety regulations when handling fluid nitrogen.
CAUTION
Observe the position of the oil holes (14) and parting joint (15) as well as the dimen-
sion s = 0.2 mm (Fig. 2/Z) (projection of the valve lever to the bush) when pressing in
the new bushes. Do not damage plastic-laminated surface.
To Next Page
Loading...