Instruction Manual

52
4111-0010 — December 2004
PowerHook Valve Body Assembly
PARTS
1
9
10
19
7
11
15
18
13
5
20
17 16
21
2 4
8
14
12
3
6
Item # Part Description Block Label Function Part Number
1 Cartridge Valve - 4-Way - 2-Position A Fluid to Powerhook or Dock Leveler if energized 8581-0011
2,5,8,12,14 Delta Coil Activates Cartridge Valve 8581-0004
3 Elbow 90° Fitting DLS Fluid to Logic Block 9301-0127
4 Cartridge Valve - 3-Way - 2-Position B Fluid to lower Powerhook if energized (with D) 8581-0005
6 Pressure Switch Assembly PS Tells PLC to stop Powerhook retracting when ICC bar engaged 0963-0004
7 Cartridge Valve - 3-Way - 2-Position C2 Fluid to retract Powerhook when energized (with C1) 8581-0005
9 Elbow 45° Fitting HC2 Fluid to top of Powerhook cylinder via regeneration valve 9301-0120
10 Elbow 45° Fitting HC1 Fluid to base of Powerhook cylinder via regeneration valve 9301-0120
11 Elbow 45° Fitting HDC Fluid to Positioning cylinder 9301-0120
13 Cartridge Valve - 2-Way - N.C. C1 Fluid to retract Powerhook when energized (with C2) 8581-0074
15 Cartridge Valve - 3-Way - 2-Position D Fluid to hold Powerhook in lowered position when energized 8581-0005
16 Cartridge Valve - Flow Control NV Controls flow to/from positioning cylinder 8581-0008
17 Cartridge Valve - Relief RV Controls flow to/from Powerhook, dumps excess flow to tank 8581-0089
18 T-Fitting R1 Return line (dump line) to pump 9301-0127
19 T-Fitting R1 Fluid to Dock Leveler - Logic Block 9301-0127
20 Incoming Pressure Line P1 Incoming hydraulic fluid from pump Varies by Model
21 Cable Assembly Wire harness, 48", 5 wire assembly: connects to 5 delta coils 4305-0234
22
Cable Individual (Not Shown) Individual wire, 48": connects to single delta coil
4305-0235