Adjusting Wheel Tread; Hydraulic Power Take Off - Yanmar EF312T Operator's Manual

12. Adjusting wheel tread

Adjust the tractor rear wheel tread according to the type
of crops and field preparation.
Apply a wide wheel tread for works on a slope or for a
traction work.
(1) Apply parking brake and put tire stoppers to front
wheels and jack up tractor body to raise rear
wheels.
(2) To adjust the wheel tread, exchange left and right
tires.
IMPORTANT
Front tire tread is not adjustable.
Tire tread
Tire Size
(ply rate)
Front 7-14 (4)
Rear 11.2-24 (4)

13. Hydraulic power take off

Single action cylinder
In case of single action cylinder, remove the
hydraulic outlet plug (A) on right side of control valve,
and connect hydraulic hose from cylinder of
implement.
<Operation>
(1) Set the position control lever in the lower position.
(2) Fasten the hydraulic stop/slow return valve (B) at
fully clockwise position.
(3) Operate the position control lever to move the
implement.
Double action cylinder
<Connection>
(1) Remove operator's seat.
(2) Remove the dust cover under the seat.
(3) Remove the high pressure pipe (E).
(4) Connect hydraulic hose to port (C) that the oil goes
to SCV and connect hose to port (D) that oil comes
back from SCV.
(5) Install the dust cover and the seat.
Keep the high pressure pipe for the time when
removing SCV.
Standard tread (mm)
1000
1025
Wide tread (mm)
N.A.
1105
(A) Hydraulic outlet (single action)
(B) Hydraulic stop/slow return valve
(C) Hydraulic outlet (double action, out)
(D) Hydraulic outlet (double action, in)
(E) High pressure pipe
(F) Relief valve
(G) Hydraulic control valve
41
(A) Wheel disc
(a) Standard tread
(b) Max. tread
OPE_EF312T&352T_en.doc