Valve clearances.
Due to the design of the camshaft and followers there is very little wear on the tappits and only infrequent
adjustment is required. The tolerances should be checked as per the maintenance schedule. If
adjustment is needed it is recommended that it be done either by a Ford motor dealer, T.J. Frazier or
your dealer. (Special tools are required). Tolerances: (cold) Inlet - 0.235 to 0.365 mm Exhaust - 0.435 to
0.565 mm.
Camshaft / injection pump drive belts.
The camshaft drive belt should be replaced as a matter of course every 600 hours and the injection pump
belt every 1200 hrs. This routine work can be carried out by either ourselves, by some of our main
dealers or by your nearest Ford car/commercial dealer.
Special tools are required and the job should not be attempted without these tools and the appropriate
service manual.
Failure to replace the cam belt at the recommended intervals or failure to follow the correct fitting
procedure can lead to belt failure which will result in serious and costly engine damage.
Hydraulic system.
The hydraulic system develops a maximum of 6hp Please consult the manufacturer if you wish to drive
anything other than a conventional diaphragm sprayer pump or Vicon, Lely Centreliner or Amazone twin
disc fertiliser spreaders.
Do not alter the relief valve settings on either the spool valve or flow divider without consulting the
manufacturer. They are preset at: Flow divider (main relief) 1800 PSI, Spool valve relief valve 1800 PSI,
Power Steering 1050 PSI. Ensure the hydraulic system is kept clean. Be careful when refilling tank. Do
not direct high pressure hose at filler/breather cap. Oil level should be kept to top of level/temperature
gauge. Use good quality, clean hydraulic oil for topping up only ( I.S.O VG 68 ). Do not use universal
oils. Change return line filter when indicator on filter unit turns red or at least every 12 months. If
excessive oil contamination is evident the oil should also be changed and the suction filter (inside tank)
should be removed and washed out. If this filter is removed ensure that no contamination gets inside the
suction pipe or into the inside of the filter.
If an oil-to-air cooler is fitted in front of the engine radiator, ensure that it is kept perfectly clean along
with the radiator behind it at all times. Failure to do so will lead to overheating of the hydraulic and/or
engine cooling systems.
See appendices for information on the uprated pto systems.
Tyres.
The low pressure tyres are normally preset at 10 psi (0.7 bar). The pressure may be reduced in adverse
conditions to as low as 6 psi (0.6 bar) depending on the load being carried. However the main thing to
watch is that the tyre side walls do not crease when loaded. If the machine is being used for long periods
on the road the pressure should be increased to 14 psi (1 bar). Row crop tyres should be inflated to 35
psi (2.4 bar).
Maintenance
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