Kinze 4900 Front Folding Planter Rev. 5/14 - Manual (Page 100)

M0247-01 Model 4900
6-18 Rev. 5/14
TM
Lubrication and Maintenance
CHECK VALVE
A check valve is located in each vacuum fan motor block assembly and operates as a
return line check to prevent vacuum fan motor reverse operation. Remove and inspect
valve If it does not operate properly. Check for foreign material and if O-ring is leaking
internally. Replace if defective.
PRESSURE COMPENSATED FLOW CONTROL VALVES
There are three pressure compensated flow control valves used on the planter. One is
located on the vacuum fan block, on the ASD fan block and on the power pack block.
FLOW CONTROL VALVES
Two flow control valves are located in valve block on right wing of planter. Flow control
valves should be adjusted for row marker raise and lower speed as part of assembly
procedure or upon initial operation. If valve fails to function properly or requires frequent
adjustment, it should be removed for inspection. Check for foreign material and
contamination on valve and seating areas of valve body. Replace defective components.
PRESSURE RELIEF VALVES
Pressure relief valve in valve block on left wing of planter functions during lowering out of
raised transport sequence. Valve is factory set and should require no additional adjustment.
Pressure relief valve located in valve block on tongue functions during tongue extend cycle.
This pressure relief valve ensures latch cylinder extends and releases prior to tongue
extending. Valve is factory set and should require no additional adjustment. Contact your
Kinze Dealer for service.
NOTICE
Connect hydraulic motor case drain to a case drain return line with
zero pressure on tractor or hydraulic motor will be damaged. DO
NOT connect hydraulic motor case drain to SCV outlet. Contact
tractor manufacturer for specific details on “zero pressure return”.