Test Steps

TEST NOTES:

WARNING: Keep hands clear of soft top mechanism, windshield frame and soft top compartment cover.

The Following Jobs Are The Same For All Test Steps:
Connection of test equipment to hydraulic unit (Figure 1). Torque check valve 129 589 08 63 00 to 5 Nm.

If hydraulic lines need to be disconnected from the valve blocks during pressure tests, the appropriate soft top position (end position of the hydraulic cylinder) must first be ensured.

All the necessary soft top positions can be achieved by using the soft top switch or by moving the soft top by hand (manual operation, Ignition: OFF). The soft top compartment cover can be locked or unlocked by using the emergency tool in the vehicle tool kit.

In the event of a lock failure, the fabric bow can only be opened by unscrewing the lock pin from inside the vehicle.

Pressure Test
The hydraulic circuits and components responsible for a specific soft top movement can be tested separately.

Disconnected hydraulic lines should be held in a container (connect a transparent hose such as windshield washer hose).

Hydraulic components that leak should be replaced. During pressure tests, the valve block connections must be plugged with plug 129 589 00 91 01.

If hydraulic components need to be replaced, the disconnected hydraulic lines must be plugged with plug 129 589 00 91 07, while the connections of valve blocks and hydraulic cylinders must be plugged immediately using plug 129 589 00 91 11 to prevent the possible entry of dirt.

CONNECTION DIAGRAM - PRESSURE GAUGE AND CHECK VALVE TO HYDRAULIC UNIT

Figure 1:

A7/5 CST/RB hydraulic unit
A7/5k1 Relay
A7/5y1 Main valve
1 Check valve
2 Pressure test line
3 Coupling piece
4 Pressure gauge
10 Roll bar hydraulic line
11 Test connection
12 Sob top hydraulic line
13 Return line

TEST STEPS:

Test Step 1.0:

Test Step 2.0:

Test Step 3.0:

Test Step 3.1:

Test Step 4.0:

Test Step 5.1:

Test Step 5.2:

Test Step 5.3:

Test Step 5.4:

Test Step 6.0:

Test Step 6.1:

Test Step 6.2:

Test Step 7.0:

Test Steps 8.0 - 9.0:

Test Step 10:

Test Step 10.1:

Test Step 11.0:

Test Step 12.0:

Test Step 13.0 - 14.0:

Test Step 15.0:

Test Step 15.1:

Test Step 15.2:

Test Step 16.0:

Test Step 16.1:

Test Step 17.0:

Test Step 17.1:

Test Step 18.0:

Test Step 18.1:

Test Step 18.2:

Test Step 19.0:

Test Step 19.1:

Test Step 20.0:

FLUID DIAGRAMS:

Right CST Valve Block (Y55)

Figure 2:

Y55y6 Soft top "open" valve
Y55y7 Soft top "close" valve
Y55y8 Fabric bow "raise" valve
Y55y9 Fabric bow "lower" valve

RB Valve Block (Y57)

Figure 3:

Y57y10 Rod side valve
Y57y11 Piston side valve

Left CST Valve Block (Y58)

Figure 4:

Y56y3 Soft top compartment lock valve
Y56y4 Fabric bow lock valve
Y56y5 Soft top compartment cover drive valve

Soft Top/Roll Bar

�U�=Figure 5:

VD Soft top compartment cover lock
VE Fabric bow
Y55 Right CST valve block
Y56 Left CST valve block
Y57 RB valve clock
A7/5 CST/RB hydraulic unit
2/3 Hydraulic cylinder
soft top compartment cover left right
4 RB hydraulic cylinder
4a/4b Locking pawl hydraulic cylinder left right
5/6 Fabric bow hydraulic cylinder. left/right
7/8 Soft top hydraulic cylinder. left/right
A Soft top hydraulic circuit
B Roll bar hydraulic circuit
C Control pressure line
D Return line
E Suction line

Soft Top/Roll Bar

nރ=Figure 6:

VD Soft top compartment cover lock
VB Fabric bow lock
Y55 Right CST valve block
Y56 Left CST valve block
Y57 RB valve block
A7/5 CST/RB hydraulic unit
2/3 Hydraulic cylinder
soft top compartment cover left right
4 RB hydraulic cylinder
4a/4b Locking pawl hydraulic cylinder, left/right
5/6 Fabric bow hydraulic cylinder, left right
7/8 Soft top hydraulic cylinder, left right
A Soft top hydraulic circuit
B Roll bar hydraulic circuit
C Control pressure line
D Return line

Retract Roll Bar

Figure 7:

A7/5 CST/RB hydraulic unit
4 RB hydraulic cylinder
4a Left locking pawl
4b Right locking pawl
Y57 RB valve block

Extend Roll Bar

Figure 8:

A7/5 CST/RB hydraulic unit
4 RB hydraulic cylinder
4a Left locking pawl
4b Right locking pawl
Y57 RB valve block

Open Fabric Bow Lock

Figure 9:

A7/5 CST/RB hydraulic unit
VB Fabric bow lock
Y55 Right CST valve block
Y56 Left CST valve block

Raise Fabric Bow

Figure 10:

A7/5 CST/RB hydraulic unit
5 Left fabric bow hydraulic cylinder
6 Right fabric bow hydraulic cylinder
Y55 Right CST valve block

Open Soft Top Compartment Lock

Figure 11:

A7/5 CST/RB hydraulic unit
VD Soft top compartment lock
Y55 Right CST valve block
Y56 Left CST valve block

Raise Soft Top Compartment Cover

Figure 12:

A7/5 CST/RB hydraulic unit
2 Left soft top compartment cover hydraulic cylinder
3 Right soft top compartment cover hydraulic cylinder
Y55 Right CST valve block
Y56 Left CST valve block

Lower Fabric Bow

Figure 13:

A7/5 CST/RB hydraulic unit
5 Left fabric bow hydraulic cylinder
6 Right fabric bow hydraulic cylinder
Y56 Right CST valve block

Open Soft Top

Figure 14:

A7/5 CST/RB hydraulic unit
7 Left soft top hydraulic Cylinder
8 Right soft top hydraulic cylinder
Y55 Right CST valve block

Lower Soft Top Compartment Cover

Figure 15:

A7/5 CST/RB hydraulic unit
2 Left soft top compartment cover hydraulic cylinder
3 Right soft top compartment cover hydraulic cylinder
Y55 Right CST valve block
Y56 Left CST valve block

Lock Soft Top Compartment Lock

Figure 16:

A7/5 CST/RB hydraulic unit
VD Soft top compartment lock
Y55 Right CST valve block
Y56 Left CST valve block

Close Soft Top

Figure 17:

A7/5 CST/RB hydraulic unit
7 Left soft top hydraulic cylinder
8 Right soft top hydraulic cylinder
Y55 Right CST valve block

Lock Fabric Bow Lock

Figure 18:

A7/5 CST/RB hydraulic unit
VB Fabric bow lock
Y55 Right CST valve block
Y56 Left CST valve block