Winterthur Gas X40-B, Maintenance Manual

Page: 131 / 495

Maintenance
2124 − 3/A1
Winterthur Gas & Diesel Ltd.
1/ 4
Cylinder Liner
Remove Unwanted Material, Dress the Lubricating Grooves
and Scavenge Air Ports
Tools:
1 Wear ridge grinding device 94299
1. General 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Preparation 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Unwanted Material − Remove 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Lubricating Grooves − Dress 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Scavenge Ports − Dress 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. General
During operation, the cylinder liner becomes worn and an edge of unwanted material
collects immediately above the location where the top piston ring movement stops. Also,
the lubricating grooves decrease in depth and the corner radii of the scavenge ports
become smaller.
Before each piston removal, you must first measure the bore of the cylinder liner (for
more data see 2124 − 1 ).
2. Preparation
1) Remove the cylinder cover, refer to 2708 − 1 .
2) Remove all lubricating quills, refer to 2138 − 1 .
3) Put applicable protection in the cylinder liner. This keeps unwanted particles out of
the bore.
3. Unwanted Material − Remove
CAUTION
Damage Hazard: Make sure that you do no cause damage to the
running surface of the cylinder liner when you operate the grinding
tool.
1) Read the data in the Instruction Manual for the grinding tool.
2) Attach the grinding tool (94299) to the cylinder liner (1,
Fig. 1 ), refer to the
Instruction Manual.
3) Align the middle of the milling cutter (2) to the edge of the unwanted material, refer
to step 2.
4) Connect the grinding tool (94299) to an applicable air supply.
5) Operate the grinding tool (94299) to carefully remove the unwanted material from
the cylinder liner (1).
6) Make sure that the unwanted material is removed and there is sufficient space to
the top piston ring (3) when the piston is in the TDC position. Make sure that you
get a maximum angle of 40
° at the cylinder liner (1), refer to step 3.
2016