WÄRTSILÄ RT-flex50-D, Maintenance Manual

Page: 351 / 522

Maintenance
5556−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
1/ 9
Tool: Key to Illustrations:
1 Fitting and dismantling 1 Actuator 23 Screw
device 94551 2 Connecting element 24 Flange
1 Cover 94552 3 Screw 25 Regulating (toothed) rack
1 Spacer 94555 4 Pump cover 26 Circlip
1 Checking gauge 94556 5 Upper housing 27 Stop ring
6 Lower housing 28 Screw
7 Guide piston 29 Valve block
8 Roller 30 Valve body
9 Guide pin 31 Compression spring
10 Pin 32 Holding screw (Cu-ring)
11 Circlip 33 Pump cylinder
12 Pressure disc 34 Intermediate disc
13 Bush 35 Circlip
14 Snap ring 36 Screw
15 Pin 37 Bush
16 Allen screw 38 Rod seal ring
17 Lower spring carrier 39−41 O-rings
18 Pump plunger
19 Compression spring
20 Guide pin
DS Pressure piece
21 Regulating sleeve RC Eye bolt M6
22 Upper spring carrier SC Screw M6
Overview
1. Preparation 1/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Removal of a fuel pump 2/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Dismantling of a fuel pump 3/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Assembling of a fuel pump 6/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Preserving 9/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Fitting of a fuel pump 9/9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Preparation
⇒
Stop the engine and switch off the fuel supply
pump.
⇒
Close shut-off valves to the fuel inlet and out-
let pipes, as well as the pressure retaining
valve.
(see 0720−1 in the Operating Manual).
⇒
Remove the fuel inlet and outlet pipes.
⇒
Remove the fuel pressure piping (see
8752−1 ).
⇒
Remove connecting element 2 between reg-
ulating rack 25 of fuel pump and actuator 1.
A
013.660/05
25
1
3 2
Fuel Pump
Dismantling and Assembling
2010