Genie Z-34/22IC, Service Manual

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4 - 48 Z-34/22 IC Part No. 128267
July 2007 Section 4 • Repair Procedures
REV A
10-6
4WD Traction Manifold Components
The 4WD traction manifold is mounted inside the drive chassis at the non-steer end.
Index Schematic
No. Description Item Function Torque
1 Solenoid valve, 2 position 3 way ....... BB ......... Brake ......................................................... 20 ft-lbs / 27.1 Nm
2 Check valve ....................................... BL ......... Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
3 Shuttle valve, 3 position 3 way .......... BK ......... Charge pressure circuit
that gets hot oil out of low pressure
side of drive pump and allows low
pressure flow path for brake
release and 2-speed motor shift ....... 15-18 ft-lbs / 20-24 Nm
4 Solenoid valve, 2 position 3 way ....... BA ......... 2-speed motor shift ................................... 20 ft-lbs / 27.1 Nm
5 Check valve ....................................... BF ......... Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
6 Orifice plug, 0.039 inch / 1 mm .......... BP ......... Equalizes pressure on both sides of
flow divider/combiner valve BO
7 Flow divider/combiner valve .............. BO ........ Controls flow to right side drive
motors in forward and reverse .................. 25 ft-lbs / 33.9 Nm
8 Orifice plug, 0.039 inch / 1 mm .......... BQ ........ Equalizes pressure on both sides of
flow divider/combiner valve BO
9 Check valve ....................................... BG ........ Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
10 Orifice plug, 0.032 inch / 0.8 mm ....... BC ........ Brake circuit
11 Orifice plug, 0.079 inch / 2 mm .......... BH ........ Equalizes pressure on both sides of
flow divider/combiner valve BI
12 Check valve ....................................... BM ........ Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
13 Check valve ....................................... BN ........ Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
14 Check valve ....................................... BE ......... Drive motor anti-cavitation ........................ 20 ft-lbs / 27.1 Nm
15 Orifice plug, 0.079 inch / 2 mm .......... BJ ......... Equalizes pressure on both sides of
flow divider/combiner valve BI
16 Relief valve, 150 psi / 10.3 bar .......... BD ........ Charge pressure circuit ............................. 20 ft-lbs / 27.1 Nm
17 Orifice plug, 0.039 inch / 1 mm .......... BS ......... Equalizes pressure on both sides of
flow divider/combiner valve BT
18 Flow divider/combiner valve .............. BT ......... Controls flow to left side drive
motors in forward and reverse .................. 25 ft-lbs / 33.9 Nm
19 Orifice plug, 0.039 inch / 1 mm .......... BR ........ Equalizes pressure on both sides of
flow divider/combiner valve BT
20 Flow divider/combiner valve .............. BI .......... Controls flow to flow
divider/combiner valves
BO and BT ................................................ 30 ft-lbs / 40.6 Nm
MANIFOLDS