Traction Manifold, 4Wd - Genie Z80/60 Service Manual

Section 4 • Repair Procedures
MANIFOLDS
8-14

Traction Manifold, 4WD

The 4WD traction manifold is mounted inside the drive chassis at the circle-end of the machine.
Index
No. Description
1 Check valve, 5 psi / 0.34 bar ............. FA ......... Drive motor anti-cavitation ................ 30-35 ft-lbs / 41-47 Nm
2 Solenoid valve, 2 position 3 way ....... FB ......... 2-speed drive motor shift .................. 26-30 ft-lbs / 35-41 Nm
3 Solenoid valve, 2 position 3 way ....... FC ......... Brake release .................................... 26-30 ft-lbs / 35-41 Nm
4 Check valve ....................................... FD ......... Keeps brakes released in case of
5 Shuttle valve, 3 position 3 way .......... FE ......... Charge pressure circuit that
6 Relief valve, 250 psi / 17.2 bar .......... FF ......... Charge pressure circuit ..................... 20-25 ft-lbs / 27-34 Nm
7 Orifice, 0.030 in / 0.76 mm ................ FG ........ Brake and 2-speed circuit
8 Check valve ....................................... FH ......... Drive motor anti-cavitation ................ 20-25 ft-lbs / 27-34 Nm
9 Check valve ....................................... FI .......... Drive motor anti-cavitation ................ 30-35 ft-lbs / 41-47 Nm
10 Flow divider/combiner valve .............. FJ ......... Controls flow to square end
11 Check valve, 5 psi / 0.34 bar ............. FK ......... Drive motor anti-cavitation ................ 20-25 ft-lbs / 27-34 Nm
12 Bi-directional flow control valve,
2 gpm / 7.6 L/min ............................... FL ......... Equalizes pressure on both sides
13 Bi-directional flow control valve,
2 gpm / 7.6 L/min ............................... FM ........ Equalizes pressure on both sides
14 Bi-directional flow control valve,
2 gpm / 7.6 L/min ............................... FN ......... Equalizes pressure on both sides
15 Check valve ....................................... FO ........ Drive motor anti-cavitation ................ 20-25 ft-lbs / 27-34 Nm
16 Flow divider/combiner valve .............. FP ......... Controls flow to circle end
17 Flow divider/combiner valve .............. FQ ........ Controls flow to divider/
18 Check valve ....................................... FR ......... Drive motor anti-cavitation ................ 20-25 ft-lbs / 27-34 Nm
4 - 104
Schematic
Item Function
temporary loss of charge pressure ... 20-25 ft-lbs / 27-34 Nm
directs hot oil out of low pressure
side of drive pump ............................ 30-35 ft-lbs / 41-47 Nm
drive motors in forward
and reverse ................................. 90-100 ft-lbs / 122-136 Nm
of divider/combiner valve FJ ............. 30-35 ft-lbs / 41-47 Nm
of divider/combiner valve FQ ............ 30-35 ft-lbs / 41-47 Nm
of divider/combiner valve FP ............ 30-35 ft-lbs / 41-47 Nm
drive motors in forward
and reverse ................................. 90-100 ft-lbs / 122-136 Nm
combiner valves FJ and FP ........ 90-100 ft-lbs / 122-136 Nm
Z-80/60
June 2011
REV E
Torque
Part No. 88619