Vetus MTC30 Manuel D'installation page 14

Tubing
Cylinder
MTC30
MTC52
MTC72
MTC125
MTC175
* Maximum length,
tube/ hose 6 mm I.D.
** Maximum length,
tube/ hose 8 mm I.D.
No. of turns steering wheel H.O. to H.O.
Cylinder
MTC30
MTC52
MTC72
MTC125
MTC175
Hydraulic fluid
Hydraulic oil : In accordance with ISO VG 15
Viscosity : 14 cSt at 40°C
Viscosity index : Greater dan 380
Solidifying point : Below -60°C
The following hydraulic oils fulfil the above specifications:
VETUS : Hydraulic oil HF15
Shell : Aeroshell Fluid 4
Chevron Texaco : Aircraft Hydraulic 5606G
Esso : Univis HVI 13
Exxon Mobil : Mobil Aero HFA
14
020105.03
Steering pump
100 m (328 ft)
Steering pump
HTP20(R)
nylon tubing
6 mm I.D., 8 mm O.D. *
41 m (134 ft)
HTP20(R)
3,4
5,3
7,5
–
–
5 Maintenance
- Check the oil level in the top steering pump regularly. When the
installation includes an extra oil expansion tank, the oil level
should be halfway up this tank.
- Check regularly to ensure that the steering pump shaft and cyl-
inder piston rod are not dirty; clean when necessary to prevent
damage to the oil seal.
- Clean the piston rod regularly (with fresh water after sailing on salt
water) and lubricate with a corrosion-resistant oil (not grease).
- At regular intervals, lubricate at the cylinder side both the pivots
of cylinder support and clevis.
- Drain and replace the hydraulic oil once every 3 years, or after
every 300 operating hours.
HTP30(R)
nylon hose
6 mm I.D., 10 mm O.D. *
or
soft annealed red copper/ steel tubing
8 mm I.D., 10 mm O.D. **
28 m (91 ft)
67 m (220 ft)
HTP30(R)
2,3
3,5
4,9
8,5
–
Hydraulic Steering Systems 30 - 175 kgm
HTP42(R)
20 m (65 ft)
48 m (157 ft)
HTP42(R)
–
2,5
3,5
6,1
8,5