WinGD RT-flex50DF, Maintenance Manual, Page: 411 / 586

Maintenance
5562 − 3/A1
Winterthur Gas & Diesel Ltd.
1/ 4
Replacement
Tools:
2 Eye bolts (M10) 94045-M10
1 Surface plate 94585A
1 Blind flange 94585B
1. General
It is not usually necessary to do maintenance on the flow limiting valve (FLV) , but
during operation the piston and cylinder in the FLV can become worn. This causes
fuel leakage. Refer to 0380 − 1 Maintenance Schedule Flow limiting valve for the
intervals to replace the FLV.
2. Preparation
WARNING
Danger: Do not weld or grind materials in the area. The sparks
from welding equipment and grinding tools can cause a fire.
WARNING
Injury Hazard: You must put on gloves and safety goggles when
you do work on hot components. Fuel and oil can come out as a
spray and cause injury.
WARNING
Injury Hazard: Do not operate the turning gear. Fuel can come out
of the opening in the fuel rail and cause injury.
1) Stop the engine, refer to the Operation
Manual, 0310 − 1.
2) Cut out the injection, refer to the
Operation Manual, 0510 − 1.
3) Let the engine temperature decrease.
4) Let the pressure in the fuel rail
decrease to zero.
5) Make sure that the fuel injection system
has no pressure.
6) Make sure that all tools and equipment
are clean and in good condition.
7) Remove the HP injection pipes from
the FLV (2, Fig. 1 ), refer to 8733 − 1
paragraph 1 and paragraph 2 .
8) Remove the leakage pipes (1, 3) from
the FLV (2).
9) Apply protection to the openings on the
FLV.
10) Apply protection to the open ends of
the pipes (1, 3).
2016
Flow Limiting Valve
2
3
1
WCH03116
Fig. 1