Genie Industries Z-30/20, Руководство по обслуживанию, Страница: 138 / 150

7 - 28 Genie Z-30/20 Part No. 43063
Service Manual - Third Edition Section 7 - Repair Procedures
7-3
Brake Manifold Components
The Brake Manifold is located on the turntable underneath the function manifold cover.
Index Schematic
No. Description Item Function Torque
1 Proportional solenoid valve ............... U ........... Brake release circuit ......................... 10-12 ft-lbs (14-16 Nm)
2 Normally closed poppet valve ........... T ........... Brake release circuit ......................... 25-30 ft-lbs (34-41 Nm)
3 Orifice, 0.052 in (1.32 mm) ............... R ........... Brake release circuit
4 Normally open poppet valve .............. V ........... Brake release circuit ......................... 25-30 ft-lbs (34-41 Nm)
5 Check valve ....................................... Q ........... Brake release circuit ......................... 25-30 ft-lbs (34-41 Nm)
6 Pressure switch ................................. S ........... Brake release circuit
7 Orifice Plug 0.040 in (1.27 mm) ........ W .......... Brake release circuit
MANIFOLDS
Plug Torque Specifications
Description Hex Size Torque
SAE No. 2 1 /
8
50 in-lbs / 6 Nm
SAE No. 4
3
/
16
13 ft-lbs / 18 Nm
SAE No. 6
1
/
4
18 ft-lbs / 24 Nm
SAE No. 8
5
/
16
50 ft-lbs / 68 Nm
SAE No. 10
9
/
16
55 ft-lbs / 75 Nm
SAE No. 12
5
/
8
75 ft-lbs / 102 Nm
How to Check the Resistance
of a Valve Coil
1 Turn the key switch to the
OFF
position and
disconnect the wires from the valve coil to be
tested.
2 Connect the leads from the ohmmeter to the
valve coil terminals.
Valve coil specifications
2 position 3 way solenoid valve - 20V 23 - 24
W
Schematic items T and V
Proportional solenoid valve - 24V 19 - 20
W
Schematic item U