Spearhead TWIGA 120, Handbook

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Spearhead TWIGA
120
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PUMP PUMP PUMP PUMP & & & & TANK KIT TANK KIT TANK KIT TANK KIT
Initial Fitting Procedure
• Remove TWIGA 120 from tractor - refer to removal procedure page for details.
• Unbolt the valve mounting bracket from the valve mounting bar, place the latter and valve
controls in safe place.
• Extract mounting bar to remove bracket and replace with the one provided in the kit.
Refit bar with new bracket in position.
• Unbolt the upper halves of the yoke and fit them either side of the tractors top hitch
bracket with the ¾” UNF nut and bolt provided. If the tractor has only one top hitch position
the bolt will replace the existing top hitch pin. If more than one location is available mount
the yokes through an alternative position as this will make the machine easier to attach
and detach - Do not tighten the nut at this stage.
• Attach the machine to the three point linkage and raise it to give 200 - 250 mm (8 - 10")
clearance under the lowest part of the frame.
• Re-bolt the yoke halves together - it may be necessary to raise or lower the machine on
the linkage to achieve whole alignment.
• Position tank so the bottom brackets hook over valve mounting bracket.
• Connect Pump and drive assembly to P.T.O. shaft on tractor.
• Secure the torque chain so that the angle is approximately 90° to the torque arm and is in
lateral alignment.
• Fit top link spindle to pass through top bracket of tank and flange on main frame.
• Adjust the top link until the main frame is vertical.
• Tighten the nut and bolt securing the upper yoke just enough to eliminate any sideways
movement - do not over tighten and squeeze the top hitch brackets.
• Tighten the check chains/stabiliser bars.
• Re-assemble valve mounting bar to bracket.
• Connect up hydraulics – refer to hydraulic installation diagram on following page.
• Fill reservoir with required oil (refer to recommended oils chart).
• Turn the parking leg upside down and pin in the work position.
Start tractor and engage PTO drive - allow the pump to work under a ‘no load’ condition
i.e. with operating controls in neutral, for several minutes with tractor engine at a high idle.
Operate the TWIGA 120 through its complete range of movements including the operation
of the cutterbar drive - check the reservoir and top up if necessary.
Before commencing work it is advisable to find an unobstructed level site and operate the
machine through its entire range of movements to familiarise yourself with the controls and
the machines response to them.