Ford 3930 User Manual

CONTROLS, INSTRUMENTS AND-OPER'AT~oN·-·. --
IMPORTANT: To stop the motor. move the lever
fully forward from the 'retract' position to the
'floaf position. The motor will then slow to a halt
and
not stop abruptly causing internal line pres-
sures which, unless relieved by special valving,
could damage the motor seals.
Obseive the following to further protect the trac-
tor and equipment:
• Do not open any by-pass valve in the equip-
ment or motor. Use the flow control valve to
control the rate of flow or speed of the motor.
• Do not hold the remote control valve lever to
operate the equipment. If the detent will not
hold the lever in the lower _IX)Sition, check the
equipment for proper adjustment or contact
your Ford New Holland dealer for assistance
in
adapting the equipment to suit the tractor.
• To assure optimum hydraulic oil cooling and
prevent overheating, operate continuous flow
equipment at the highest flow setting (by use
of the flow control valve) and lowest engine
speed that will give the required machine per-
fonnance and speed.
• It is recommended that a temperature gauge,
where available, is installed in the remote cir-
cuit when using hydraulic motors for continu-
ous operation. If over-heating occurs, stop
the hydraulic motor until the oil cools. Ensure
the flow control .setting is at maximum and the
engine speed at a minimum, appropriate to
machine perfonnance. If operating conditions
are normal and high temperatures persist, in-
stall an oil cooler in the motor return circuit.
The maximum recommended operating tem-
perature of the oil is 100° C (212° F).
• Your authorized Ford New Holland dealer
will supply the necessary fittings or make the
installation for you.
30
Operating Several Remote Valves Simultane-
ously or Remote Valves and Hydraulic Lift Si-
multaneously
NOTE: Hydraulic pump output varies with en-
gine speed. Oil flow will be relatively constant in
the remote control valve circuits ifthejlowcontrol
valve
is used to provide reduced oilflow, thus pro-
viding constant operating speed/or hydraulic mo-
tors, etc., even if engine speed varies. Maintain
the engine speed above the minimum required/or
simultaneous operation
of all the required circuits
and
vary ground speed by selection of the appro-
priate gear ratio.
If operating two or more remote control valves si-
multaneously or remote valves and the hydraulic
lift, all the flow control valves should be adjusted
to provide a partial flow. If not so adjusted, all the
available flow may be directed to the full flow cir-
cuit when the pressure in that circuit is less than
that of the other circuits in use.
Bleeding Remote Cylinders
When connecting a cylinder with trapped air, i.e.,
a
new cylinder, one that has been out of service or
one that has had the hoses disconnected, it will be
necessary to bleed the cylinder to remove the air.
With the hoses connected to the remote control
valve
couplers at the rear of the tractor, position
the cylinder with the hose end uppermost and ex-
tend and retract the cylinder seven or eight times
using the remote control valve operating lever.
Check
the rear axle oil level before and after oper-
ating the remote cylinder.
ATTACHING AND DETACHING
TRAILED EQUIPMENT
Swinging Drawbar (where fitted)
The swinging drawbar may be fixed in any one of
five positions or allowed to swing the full width of
the hanger.

Ford 3930 Specifications

General

Engine Type	Diesel
Horsepower	52 hp
Type	Utility tractor
Fuel Type	Diesel
Gears	8 forward and 2 reverse
PTO Power	45 hp
PTO Speed	540 rpm
Hydraulic System	Open center
Fuel Capacity	14.5 gal (55 L)
Transmission	8-speed
Engine	Ford
Displacement	201 ci (3.3 L)