Hydraulic System 151
Service Manual – Advance 7765 / Nilfisk CR1500
Note:
The cylinder Pressures and Flow rates on the preceding pages are with the hopper stabilized
and at rest. Peak relief pressure is 2500 psi.
The pressure while raising the hopper will depend on the weight of the hopper. If the hopper
dump door cylinder or hopper lift cylinder is fully-extended or retracted (dump door only)
and the lever is not returned to the neutral position, the pressure will go to the relief setting
of 2500 psi.
Main Control Valve Specifications
Component
Component Description
Hydraulic Circuit Function
RV1
Poppet-type relief valve
2500 psi [172.4 bar] Relief Valve
to T1
FR1
Plug
–
SV1
Solenoid-operated, two-way, piloted, poppet-type
hydraulic cartridge valve; normally open, screw-in.
Main Broom Solenoid (2)
SV2
Solenoid-operated, two-way, piloted, poppet-type
hydraulic cartridge valve; normally open, screw-in.
Normal Brush Rotation (4)
SV3
A solenoid-operated, four-way, two-position, direct-
acting, spool-type, screw-in hydraulic cartridge valve.
Reverse Rotation Brush (3)
Coil
12 VDC, dual spade connectors; nominal coil
resistance – 7.2 Ω.
Used on SV1, SV2 and SV3
FR1
RV1
SV1
SV3
SV2
Main Control
Valve
Summary of Contents for 56514925
Page 28: ...General Information 28 Service Manual Advance 7765 Nilfisk CR1500 Maintenance Item Locations ...
Page 74: ...Engine System common Electrical System 74 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 89: ...Engine System Diesel 89 Service Manual Advance 7765 Nilfisk CR1500 Starter Relay ...
Page 113: ...Engine System Gasoline LPG 113 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 114: ...Engine System Gasoline LPG 114 Service Manual Advance 7765 Nilfisk CR1500 ...
Page 115: ...Engine System Gasoline LPG 115 Service Manual Advance 7765 Nilfisk CR1500 ...