Service and Repair Manual
October 2018
Manifolds
122
Z®-135
/70
Part No. 1268557GT
Function Manifold - View 2 (before serial number 440)
Index
No.
Description
Schematic
Item
Function
Torque
1
Check valve
DB
Prevents hydraulic pressure
from flowing back into
auxiliary pump #1
2
Check valve
DC
Prevents hydraulic pressure
from flowing back into
auxiliary pump #2
3
Differential sensing valve,
150 psi / 10.3 bar
M
Turntable rotate circuit,
regulates pressure drop
across turntable rotate
proportional valve
30-35 ft-lbs / 41-47 Nm
4
Differential sensing valve,
150 psi / 10.3 bar
O
Primary boom up/down
circuit, regulates pressure
drop across primary boom
up/down proportional valve
30-35 ft-lbs / 41-47 Nm
5
Relief valve, 2600 psi / 179 bar
E
Primary boom extend
20-25 ft-lbs / 27-34 Nm
6
Differential sensing valve,
150 psi / 10.3 bar
Q
Primary boom extend/retract
circuit, regulates pressure
drop across primary boom
extend/retract proportional
valve
30-35 ft-lbs / 41-47 Nm
7
Differential sensing valve,
150 psi / 10.3 bar
U
Secondary boom
extend/retract circuit,
regulates pressure drop
across secondary boom
extend/retract proportional
valve
50-55 ft-lbs / 68-75 Nm
8
Differential sensing valve,
150 psi / 10.3 bar
S
Secondary boom up/down
circuit, regulates pressure
drop across secondary
boom up/down proportional
valve
50-55 ft-lbs / 68-75 Nm
9
Proportional solenoid valve
T
Secondary boom up/down
circuit
50-55 ft-lbs / 68-75 Nm
10
Check valve
DD
Prevents hydraulic pressure
from flowing back into the
function pump
130-140 ft-lbs / 176-190 Nm
11
Proportional solenoid valve
V
Secondary boom
extend/retract circuit
50-55 ft-lbs / 68-75 Nm
12
Proportional solenoid valve
R
Primary boom extend/retract
circuit
50-55 ft-lbs / 68-75 Nm
13
Proportional solenoid valve
P
Primary boom up/down
circuit
50-55 ft-lbs / 68-75 Nm
14
Proportional solenoid valve
N
Turntable rotate left/right
circuit
50-55 ft-lbs / 68-75 Nm
Summary of Contents for Genie Z-135/70
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Page 161: ...October 2018 Service and Repair Manual Manifolds Part No 1268557GT Z 135 70 147 ...
Page 233: ...October 2018 Service and Repair Manual 219 Generator Wiring Schematic ...
Page 236: ...Service and Repair Manual October 2018 222 Hydraulic Generator Welder Option ...
Page 242: ...Service and Repair Manual October 2018 228 Hydraulic Schematic from serial number 535 ...
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