October 2020
Part No. 1268553GT
Z®-51/
31J
51
Service and Repair Manual
8-1
Function Manifold Components
The function manifold is located next to the hydraulic tank underneath the ground controls side cover
Index
No.
Description
Schematic
Item
Function
Torque
1
Solenoid valve, 3 position 4 way
BM
Platform level up/down
25 ft-lbs / 34 Nm
2
Solenoid valve, 3 position 4 way
CG
Platform rotate left/right and
jib boom up/down
25 ft-lbs / 34 Nm
3
Flow regulator valve, 2 gpm / 7.6 L/min
BZ
Boom extend/retract circuit
20 ft-lbs / 27 Nm
4
Solenoid valve, 2 position 3 way
CA
Primary boom extend
20 ft-lbs / 27 Nm
5
Proportional directional solenoid valve, 3
position 4 way
BY
Primary boom up/down
16-20 ft-lbs / 22-27
Nm
6
Differential sensing valve 160 psi / 11 bar
BG
Meters flow to functions
25 ft-lbs / 34 Nm
7
Proportional directional solenoid valve, 3
position 4 way
BP
Turntable rotate left/right
16-20 ft-lbs / 22-27
Nm
8
Proportional directional solenoid valve, 3
position 4 way
BU
Secondary boom up/down
116-20 ft-lbs / 22-
27 Nm
9
Solenoid valve, 3 position 4 way
BF
Steer left/right
25 ft-lbs / 34 Nm
10
Relief valve, 2100 psi / 145 bar
BV
Secondary boom down
20 ft-lbs / 27 Nm
11
Orifice, 0.046 inch / 1.17 mm
CF
Secondary boom down
circuit
12
Check valve, 5 psi / 0.3 bar
BT
Differential sensing circuit,
secondary boom down
12-14 ft-lbs / 16-19
Nm
13
Check valve, 5 psi / 0.3 bar
BW
Secondary boom circuit
25 ft-lbs / 34 Nm
14
Check valve, 5 psi / 0.3 bar
BS
Differential sensing circuit,
secondary boom up
12-14 ft-lbs / 16-19
Nm
15
Priority flow regulator valve, 2.0 gpm / 7.6
L/min
BB
Steer circuit
25 ft-lbs / 34 Nm
16
Relief valve, 3200 psi / 221 bar
BA
System relief
20 ft-lbs / 27 Nm
17
Shuttle valve
BO
Turntable rotate circuit
12-14 ft-lbs / 16-19
Nm
Manifolds
Summary of Contents for Z-51/30J
Page 62: ...52 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Manifolds...
Page 64: ...54 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Manifolds...
Page 71: ...October 2020 Part No 1268553GT Z 51 31J 61 Service and Repair Manual Manifolds...
Page 99: ...October 2020 Part No 1268553GT Z 51 31J 89 Service and Repair Manual Hydraulic Symbols Legends...
Page 106: ...October 2020 Service and Repair Manual 96 Platform Control Box Wiring Diagram Options...
Page 110: ...October 2020 Service and Repair Manual Electrical Schematic Options 100...
Page 111: ...October 2020 Service and Repair Manual 101 Electrical Schematic AS...
Page 112: ...102 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Electrical Schematic AS...
Page 113: ...October 2020 Service and Repair Manual Electrical Schematic AS 103 Z 51 31J Part No 1268553GT...
Page 114: ...October 2020 Service and Repair Manual Electrical Schematic AS 104...
Page 115: ...October 2020 Service and Repair Manual Ground Control Box Terminal Strip Wiring Diagram AS 105...
Page 118: ...October 2020 Service and Repair Manual 108 Ground Control Box Switch Panel Wiring Diagram AS...
Page 119: ...October 2020 Service and Repair Manual 109 Platform Control Box Wiring Diagram AS...
Page 122: ...October 2020 Service and Repair Manual 112 Platform Control Box Switch Panel Wiring Diagram AS...
Page 123: ...October 2020 Service and Repair Manual 113 Electrical Schematic CE...
Page 124: ...October 2020 Service and Repair Manual Electrical Schematic CE 114 Z 51 31J Part No 1268553GT...
Page 125: ...October 2020 Service and Repair Manual Electrical Schematic CE 115 Z 51 31J Part No 1268553GT...
Page 126: ...October 2020 Service and Repair Manual 116 Electrical Schematic CE...
Page 127: ...October 2020 Service and Repair Manual 117 Ground Control Box Terminal Strip Wiring Diagram CE...
Page 130: ...October 2020 Service and Repair Manual 120 Ground Control Box Switch Panel Wiring Diagram CE...
Page 131: ...October 2020 Service and Repair Manual 121 Platform Control Box Wiring Diagram CE...
Page 134: ...October 2020 Service and Repair Manual 124 Platform Control Box Switch Panel Wiring Diagram CE...
Page 135: ...October 2020 Service and Repair Manual 125 Electrical Schematic Deutz TD 2 2 L3 Models CE...
Page 142: ...132 Hydraulic Schematic October 2020 Service and Repair Manual...
Page 143: ...Hydraulic Schematic October 2020 Service and Repair Manual 133 Z 51 31J Part No 1268553GT...