0102030405
Grammer MSG 115 Main Valve Height Control Valve
1174420
0476127
001910123
0019101338
The height control valve of a car seat usually refers to a seat height adjustment device, which can control the height of the car seat electrically or manually to meet the height and riding comfort needs of different drivers. This device is usually controlled by an electric motor or hydraulic system and changes the height of the seat by adjusting the seat's lifting mechanism.
PRODUCT DESCRIPTION
Risk of injury due to limbs being caught or crushed
Working on the mechanics of the seat suspension/seat base.
Before starting work with the seat suspension raised, the seat swing arm must be secured against any movement.
1 Bring the seat suspension to its highest position and secure it.
Remove 2 seat cushions and put them aside.
A notice:
Do not disconnect existing electrical plug connections and air hose.
3 Retract the retaining ring of the Bowden cable (3) on the level control (1) and unhook the Bowden cable (2).
Hints:
●To make it easier to rebound the locking ring (3), press the Bowden cable (2) against the level control (1) (strain relief).
●Observe the installation position of the Bowden cable.
4 Carefully unlock the safety cap (4) on the locking lug and unhook it from the valve tappet of the level control (10).
5 Remove the locking ring (7).
6 Remove the locking ring (9) on the tapping screw (8).
Unhook 7 air hoses (5) on the back of the level control (1).
8 Remove level control (1).
9 Risk of injury due to pressure in the air system!
●Move the seat suspension to the highest position and secure it.
●Disconnect air supply to the vehicle electrical system.
●Bleede the air system before removing the air hoses (e.g. using the quick seat lowering button).
10 Push the hose nozzle (6) back on the air hose (ABC).
Cut 11 air hoses (A,B,C) straight and cleanly directly behind the level control connections (1).
Installation instructions:
●When reusing the level control (1), carefully score and remove hose residue on the connections with a sharp knife to make dismantling easier.
●Short the air hoses approx. 5 mm and carefully push them onto the connections while applying pressure.
●Each air hose can only be shortened once.
●After shortening an air hose, a corresponding note must be clearly visible next to the level control.
●When working on air hoses again, the air hose set must be completely replaced.
Risk of injury due to limbs becoming trapped or crushed when working on the mechanics of the seat suspension/seat base. Before starting work with the seat suspension raised, the seat swing arm must be secured against any movement.
1 Bring the seat suspension to its highest position and secure it.
2 Disconnect the air supply to the vehicle electrical system.
3 Remove the seat cushion and place it to the side.
Note: Do not disconnect existing electrical plug connections and air hose.
4 Remove cover on left handle side, small.
Note: Do not remove the electrical cable connections.
5 Remove cover on left handle side.
Note: Do not remove existing valves and air hoses.
6 Retract the locking ring (5) on the level control (7) and unhook the Bowden cable.
Hints:
●To make it easier to rebound the locking ring, press the Bowden cable seat height adjustment (4) against the level control (7) (strain relief).
●Observe the installation position of the Bowden cable.
7 Carefully unlock the safety cap (6) on the locking lug and unhook the Bowden cable from the valve tappet of the level control (7).
8 Unscrew the seat tilt adjustment lever (12).
Installation instructions: screw (13), 3 Nm.
Unscrew 9 screws (3) from the seat support (8) and remove the handle bar (2).
tear down.
Installation instructions: screws (3), 3 Nm.
Unscrew 10 screws (10) of the quick seat lowering valve (9) on the handle bar (2) and remove the valve (9).
Installation instructions:
Screws (10), 2 Nm.
11 Remove the securing clip (14).
Thread 12 air hoses (11) out of the guide on the handle bar and remove the handle bar (2) with Bowden cable for seat height adjustment (4).
13 Installation is carried out in reverse order.
Installation instructions:
air hoses on the handlebar,
● lay draft-free,
● do not bend,
● do not squeeze.
Installation is carried out in reverse order.
Connection diagram:
A = black air hose, supply air on-board network, (hang on the back of the level control),
B=black air hose, supply air to the LWU/SKA control element
C=air hose green, to the quick seat lowering valve
D=Air hose (blue) to the air spring from the seat quick lowering valve (not connected to the level control, hang on the back of the level control).
Installation instructions:
●Push the hose nozzle (6) onto all connections of the air hoses (A,B,C).
●Check air hoses for leaks.