J&M 220 Operating And Maintenance Manual - page 55
MODEL 220
HYDRAULIC
IMPACT HAMMER
V. HYDRAULIC
CIRCUITRY
D. HYDRAULIC COMPONENT LIST
Part
Page
Notation
Description
Number
Number
A1 Pressure
accumulator
160467
VIII-11
A2 Tank
accumulator
160467
VIII-11
CV1
Clamp check valve
110149
VIII-45
CV2
Manual pump check valve
100451
VIII-37
CV4
Replenishment check valve
810683
VIII-20
CV5
Bypass check valve
130339
VIII-43
CV6
Trip valve supply check valve
160323
VIII-16
CV7
Control valve check valve
160323
VIII-19
CV8
Dump valve check valve (in cover)
160323
VIII-16
CYL
Ram lifting (Actuator) cylinder
810795
VIII-14
CYL2
Variable stroke cylinder
160817
VIII-11
DV Dump
valve
810701
VIII-21
E
Diesel
engine
170239
VIII-36
F1 Pick-up
filter
400087
VIII-39
F2 Return
filter
(4)
100518
VIII-36
GA-1
Drive pressure gage
150079
VIII-31
GA-2
Close clamp pressure gage
150079
VIII-31
GA-3
Open clamp pressure gage
150079
VIII-31
GA-4
Return
filter
gage
100436
VIII-39
HE Oil
Cooler
400099
VIII-36
MP Manual
Pump
100447
VIII-37
MV1
Shut-off valve
400117
VIII-38
OF1
Control valve orifice
810777
VIII-19
OF2
Dump valve orifice
810777
VIII-17
P1 Drive
Pump
170309
VIII-36
P2
Stroke control pump
170393
VIII-36
PS1
Clamp pressure switch
810033
VIII-45
QD1
Hammer return disconnect
110690
VIII-36
QD2
Hammer pressure disconnect
110692
VIII-36
QD3
Shorten stroke disconnect
100777
VIII-38
QD4
Lengthen stroke disconnect
100245
VIII-38
RV1
Drive relief valve
400742
VIII-43
RV2
Stroke relief valve
100898
VIII-45
TS Temperature
switch
400115
VIII-38
V1
Stroke control valve
110147
VIII-45
V2
Directional control valve
400786
VIII-43
V3 Control
valve
810621
VIII-18
V4 Trip
valve
810815
VIII-11
V-5