Yanmar diesel tractor EF494T. OPERATOR'S MANUAL - part 10


  Index      Tractors     Yanmar diesel tractor EF494T. OPERATOR'S MANUAL











Content   ..  8  9  10  11   ..



Yanmar diesel tractor EF494T. OPERATOR'S MANUAL - part 10



EF494T OM 


(6) Warm up the engine by running under no-load at 

1500 rpm for 5 minutes approximately.  


(A) 1500 rpm  

  The starter motor consumes plenty of current from 

the battery. Do not keep it running for more than 10 
seconds. If it fails to start the engine, allow one 
minute before retry. Then, execute steps (6) - (7). 

  Never turn the main switch to START if the engine 

has been started or is running. 




(1) Reduce engine R.P.M. with the accelerator lever. 
(2) Turn the main switch to OFF. 



Stopping a hot engine suddenly can damage the engine 
because of overheating. Keep engine running unloaded 
at 1200 - 1500 RPM for about 2 minutes, to prevent 




4. Raising or lowering implement  

Adjust the position control lever back and forth to raise 
or lower the implement.  

(A) Position control lever  
(B) Lower  
(C) Raise  




Adjusting lowering speed for 




Never crawl beneath or step in the implement. Severe 
injury may result.  
To reduce the lowering speed for an implement, turn the 
hydraulic stop slow return valve clockwise.  
To increase the speed, turn the valve counterclockwise. 
Turning the valve fully clockwise will stop the oil 
pressure and stop lowering the implement no more.  

(A) Fast descending speed  
(B) Slow descending speed  

Do not operate the position control lever when the 
hydraulic slow return valve is closed. Hydraulic parts 
may be damaged. 





EF494T OM 



Starting and stopping 



  Make a slow start after calling attention of the people 

in the vicinity. Do not make an abrupt start. Human 
injury can result.  

  For traveling, never fail to link the left and right brake 

pedals with the connector.  

  When you leave the tractor, park it on the safe flat 

location; never fail to put on the parking brake, put 
the reverse lever and range shift lever in N (neutral); 
and lay down the implement on the ground. Block 
the wheels. Otherwise, the tractor may move without 
intention of the operator, causing a serious accident.






Never keep your foot on the clutch pedal while traveling 
or working. Otherwise, an accident may result.  
Operate the main shift lever and the range shift lever or 
reverse lever after the machine stops completely.  


(1) Check that the left and right brake pedals are tied 

together with the connector.  

(2) Set the engine speed around 1500 rpm with the 

accelerator lever.  

(3) Move the position control lever to Upward to lift the 

implement to a maximum height.  

(4) Depress the clutch pedal and place the main and 

range shift levers in the wanted position.  

(5) Put the reverse lever in the position of F or R.  
(6) Slowly release the clutch pedal. The tractor starts to 


Stopping and parking  

(1) Return the accelerator lever to LOW to slow down 

the speed.  

(2) Depress the clutch and brake pedals to stop the 

tractor, and set the main shift lever in position N.  

(3) Put the main shift lever, reverse lever and PTO shift 

lever in N (neutral).  

(4) Make sure the left and right brake pedals are 

connected with the connector. Depress the brake 
pedal and put on the parking brake.  

(5) Lay down the implement, if any, on the ground by 

putting the position control lever in LOW. 

(A) Position control lever  


Turn the main switch to OFF to stop the engine.






EF494T OM 



Traveling on the load 




  To travel on the road or cross a farm ridge, never fail 

to link the left and right brake pedals. One-sided 
braking effect will roll over the tractor or result in a 
sharp turn.  

  Follow the traffic regulations and rules when running 

on the road. Wear the helmet.  

  Do not carry other persons except a driver. 







  Remove implements are better when traveling on 

the road, or an accident may result.  

  Put the PTO shift lever in N and link the right and left 

pedals together.  

  For traveling on the road or to lock the hydraulic 

device in the upper position, adjust the upper 
stopper and move the position control lever to the 


(A) Position control lever  
(B) Upper stopper 



  Adjust the traveling speed with the foot accelerator 


  To change the traveling course, notify others by 

flasher switch.  

  Watch any following cars on the rear view mirror and 

give way to them.  

  On narrow farm paths, tilled ground or roads with 

weedy shoulders, travel at a reduced speed noting 
the road shoulders.  

  When passing other cars at night, switch the 

headlight to the low beam for the convenience of 
others to pass by.  


(A) Low beam  
(B) Flasher switch  

When traveling, keep open the hydraulic stop slow 
return valve and put the position control lever in the 
RAISE position, and the set the stopper. 




EF494T OM 



Traveling on the slope 




  Do not change speeds on the slope. Travel slowly 

on the slope. Use the engine brake on down-slope. 

  Do not travel on the slope with the reverser lever, 

the main shift lever or the range shift lever set in the 
N position.  

  Do not depress the clutch on the slope; it causes a 

great danger as the tractor may glide down.  

  To start on an up-slope, use a low gearshift and set 

off at low speed. Abrupt start will jump up the front 

  Before leaving the tractor, stop the engine, set the 

parking brake and block the wheels. 

  Shift should be changed after reaching a highest 

point on the slope. To stop on the slope, lock the 
parking brake lever. 




9. Power 





The steering wheel is easily rotated when the tractor is 
Pay a special attention in operating the steering wheel 
when traveling on the road. Power steering is effective 
only while the engine is running. The steering wheel will 
be slightly heavier at a low engine speed.  



  Turning hard the steering wheel will cause the relief 

valve to sound a blowing sound. Do not operate the 
tractor with this sound continuously for an extended 
period. It damages the hydraulic components.  

  Do not operate the steering wheel while the tractor is 

stationary except for an unavoidable case. 
Otherwise the tires or rims are damaged. 












Content   ..  8  9  10  11   ..