Scope Of Supply; Safety Regulations; General Safety Regulations; Additional Safety Regulations For The - WALTERSCHEID 63 Instructions De Montage Et D'utilisation

1. Scope of supply

A. HOLHS hydraulic top link (Fig. A1)
Swivelling eyebolt on tractor side
Hook on implement side
1 Base unit
3 Bolt
4 Coiled spring pin
5 Support clip
6 Release cord
7 Ball bush
b. HOLKS hydraulic top link (Fig. A2)
Swivelling eyebolt on tractor side
eyebolt on implement side
1 Base unit
3 Bolt
4 Coiled spring pin
5 Support clip
C. HOLKH hydraulic top link (Fig. A3)
eyebolt on tractor side
Hook on implement side
1 Base unit
6 Release cord
7 Ball bush
9 Hoses

2. Safety regulations

2.1 general safety regulations

• Only original components from
GKN Walterscheid GmbH may be used.
• Welding and/or straightening work on the
hydraulic top link is forbidden.
• Damaged components may not be installed.
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before putting the hydraulic top link into
service, make sure that freedom of movement
in all directions is ensured in every possible
installation position.
(See Figs. B1, B2, B3, B4 and B5).

2.2 Additional safety regulations for the

hydraulic top link with shock absorber (DS)
Work on the shock absorption system of the
hydraulic top link with shock absorber may
only be carried out by trained specialist staff
from specialist agricultural and construction
machinery workshops.
Do not open screw plug (X) (Fig. D1) and do not
crew out valve (Y)(Fig. D1) (this may only be
opened by trained specialist staff working in
specialist agricultural and construction machi
nery workshops).
The factory pre-set pressure is 60+10 bar.
Depending on the operation, it may be neces
sary to adjust the pressure. If this is the case,
pressure must not fall below 20 bar or exceed
110 bar.
Only nitrogen may be used to fill the pressure
chamber in the piston rod.
The piston rod may only be filled when the
hydraulic top link is discharged of any load and
no device is attached to it. In order to fill the
pressure chamber the check valve on the cylin
der must be released (release both banjo
bolts).
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Oil may leak out during the filling process!
When repairing the piston rod, the gas (nitro
gen)
must be discharged.
It is vital to heed safety information concerning
handling nitrogen.
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Due to the shock absorber, the piston rod can
move up to 30 mm within the hydraulic top link
during operation.
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The shock absorption function will no longer
operate when the top link is fully extended.
3. Tractor-side installation
• Version with fork head (A1, A2):
Mount and secure the fork head (2) on the
base unit (1) by means of the bolt (3) and the
retaining ring (4). Mount and secure the fork
head on the tractor by means of the tractor-
side bolt. Hole and bolt diameter must match.
• Version with eyebolt (A3):
Mount and secure the eyebolt on the tractor
by means of the tractor-side bolt. Hole and
bolt diameter must match
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