Maintenance
0330−1/A1
RT-flex58T-D
Winterthur Gas & Diesel Ltd.
25/ 25
Group
Key No.
Description Measuring
direction
(method of
measuring)
Nominal
dimension
(normal, new)
[mm]
Maximum clearance,
dimension
(due to wear)
[mm]
5556 Fuel pump
1 Clearance (plunger / cylinder) A−B radial 0.028−0.030 0.037
Clearance (plunger / cylinder) B−C radial 0.018−0.020 0.027
Guide piston outer ∅ 130
Lower housing inner ∅ 130
2 Clearance radial 0.070−0.125 0.15
3 Thrust piece / lower spring carrier axial 0.02−0.06 0.08
5556 Roller guide
Bush outer ∅ 60
Roller inner ∅ 60
4 Clearance radial 0.03−0.09 0.1
Pin outer ∅ 50
Bush inner ∅ 50
5 Clearance radial 0.025−0.080 0.1
Pin outer ∅ 50
Guide piston (bore) inner ∅ 50
6 Clearance radial 0.009−0.050 0.08
7 Axial clearance of bush total 0.2−0.4 0.5
8 Total clearance between guide piston
and roller with pressure discs
axial 0.24−0.54
0.7
Clearance Table
Fuel Pump
2013
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