M0275-01
Model 3700
5-30
Rev. 10/18
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. Check valves are also
located in valve block on left wing and trap oil flow in planter’s lift system to keep toolbar
level during field operation. Another check valve is located in junction block on left wing of
planter on 24 Row 70 cm. Remove and inspect valve If it does not operate properly. Check
for foreign material and if O-ring is leaking internally. Replace if defective.
RELIEF VALVE CARTRIDGE
Pressure relief valve located in vacuum fan motor block assembly helps prevent damage to vacuum
fan motor by limiting pressure in the motor case drain line. It is set to open at 35 PSI (241 kPa). If
valve fails to function properly, it should be removed for inspection. Check for foreign material and
contamination on valve and the seating area of valve body. Replace if defective.
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.
DENTENT LEVER VALVE
Detent lever valve, located near tower assembly on R.H. side of machine, blocks oil flow
from master cylinders until slave cylinders are at same height as master cylinders when
planter is being lowered from transport into field position. Contact your Kinze Dealer for
service.
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.
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”.
NOTICE
Summary of Contents for 3700
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