PROCEDURE
CAUTION
Damage Hazard: Do not open the piston rings too far. This causes damage to the piston
rings.
1 Make sure that the mark TOP on the piston rings (001, 003, Figure 8-81) points up.
NOTE: The piston can have two or more piston rings.
Only install piston rings that are clean and are in a satisfactory condition.
The piston rings are for a new and fully honed cylinder liner or a used cylinder
liner in good condition.
2 Use the piston ring tool to install the applicable bottom piston ring (003) to the related
groove of the piston head.
3 Use the piston ring tool to install the other applicable piston rings (001) to the piston
head. Make sure that the ring clearance (004) is opposite the ring clearance (002) of the
installed piston rings (003).
4 For the running-in procedure for new piston rings, refer to the Operation Manual.
Fig 8-81 Piston rings - install (example)
CLOSE UP
• None
X72DF
AA00-3425-00AAA-720B-A
Maintenance Manual Piston ring - install
Winterthur Gas & Diesel Ltd.
- 507 - Issue 002 2020-10
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