WÄRTSILÄ Vasa R22, Instruction Manual

Page: 147 / 297

4 Remove the injection pipe.
5 Loosen the oil pipe and the starting air pipe.
6 Remove the rocker arm bracket (1) and the push rods
(14) as well as the caps of the cylinder head screws. Pull up the
sleeve on the leakage pipe. Remove the screw on the splash
shield.
7 Lift the distance sleeves and hydraulic cylinders
861020 in place and proceed with opening of cylinder head
nuts.
8 Remove the cylinder head nuts.
9 Apply the lifting tool 832005.
10 Lift off the cylinder head.
11 Cover the cylinder opening
with a slab of wood or simi-
lar.
12 Apply the caps to protect the screw threads.
12.2.2 Installing the cylinder head
1 Check the sealing rings of the water, charge air and
starting air connections and of the push rod protecting pipes,
check the cylinder head gaskets. Clean and oil all sealing
surfaces. Put the exhaust pipe sealing ring in place. If neces-
sary, press it slightly to make it stick in the groove.
2 Apply the lifting tool 832005 to the cylinder head.
3 Lift the head above the cylinder and lower it carefully.
When lowering the head, take care that the starting air con-
nection pipe and the air pipe slide into the seals without force.
4 Screw on the cylinder head nuts.
5 Lift the hydraulic cylinders 861020 in place. Screw on
the cylinders, connect the hoses and proceed with tightening
of the cylinder head screws.
6 Apply the protecting caps to the cylinder head screws.
7 Fit the yokes. The yokes must be fitted on the correct yoke
guides.
Note the marks on the yokes: EX = exhaust valves; IN = inlet
valves.
Check that all studs of the rocker arm bracket fastening are fully
countersunk in the cylinder head before the rocker arm is
mounted. If the studs are not fully screwed in, loosen them and
Hydraulic oil
RE-ASSEMBLING
1. Screw on nuts, attach distance
sleeve.
Screw on cylinders by hand.
2. Connect hoses, open valve.
Tighten cylinders by hand.
3. Close the valve and pump
pressure to the stated value.
4. Screw the nuts untill close
contact to face.
5. Open the valve and
remove tool set.
Hydraulic oil
DISMANTLING
1. Screw on cylinders by hand.
2. Connect hoses, open valve.
Tighten cylinders by hand.
3. Screw cylinders 180°
counter-clockwise.
4. Close valve, rise pressure.
5. Open the nut about
half a turn.
6. Open release valve,
remove tool.
22-9601 Cylinder Head with Valves 12
VASA 22 12 - 3