WinGD RT-flex50DF, Maintenance Manual, Page: 540 / 586

Maintenance
9403 − 4/A1
Winterthur Gas & Diesel Ltd.
4/ 4
Table 1: Hydraulic Jacks − Values and Comparison
Position of
Pre-tensioning
Jack
Group Jack Tightening
Value (bar)
Comparison
( _ ( mm)
Number of
Turns to Set
the Jack /
Round Nut
Lubricating
Agent
1)
Main bearing 1132 − 1 94114B 1500 −
¾
Oil
Foundation bolt 1715 − 1 94145 1
st
step 900
then 1500
−
¼
No lubricant
Engine stays 1715 − 1 94145 310 −
¼
No lubricant
Tie rods 1903 − 1 94180 1500 From 100 to
1500 bar
13.0 to 14.5 mm
3 Molykote
paste G
Elastic studs −
cylinder cover
2708 − 2 94215A 1500 530 _ 1
½
Oil
Exhaust valve
cage
2751 − 1 94252 1500 155
_
1
Oil
Elastic stud − top
end bearing
3303 − 1 94315 1
st
step 1000
then 1500
1
st
to 2
nd
step
15 _
½
Oil
Bottom connect-
ing rod
3303 − 1 94252 1
st
step 950
then 1500
1
st
to 2
nd
step
30 _
1 Oil
Crosshead and
guide shoe
3326 − 1 94340 1
st
step 1000
then 1500
1
st
to 2
nd
step
80 _
½
Oil
Piston head 3403 − 3 94340 1500 115 _
½
Oil
Elastic stud −
bottom end
bearing
3303 − 1 94314 1
st
step 950
then 1500
1
st
to 2
nd
step
30 _
½
Oil
1)
For lubrication on threads and contact surfaces.
Hydraulic Pre-tensioning Jacks: General Instructions
2016