Snorkel TL37-01-007625, Parts Manual

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Page 3 - 9 TL49J
Note
The relief valve is factory set to 210 bar.
T he DC motor can be removed without worrying about oil spillage.
1. Remove the 2 bolts shown in Figure 3-3 at the end of the motor.
2. Withdraw the motor taking care not to strain the wires.
3. For optimum performance of the DC motor, replace the motor brushes when they are 2/3 worn
out. If the machine is used extensively, changes must be made at least every 6 months.
4. Fully remove the motor from the power pack to be able to replace the brushes.
5. Blow out dust on the brushes using compressed air before re-assembling the motor.
6. Check the motor shaft bearing and replace if worn out. Replacing the contactor is recom-
mended at the same time as replacing the brushes. The unit is fully sealed and contains no
serviceable parts.
7. Press on the platform raise/lower button. If the motor carries on running and there’s no power
at the contactor coil, the contactor needs replacing. To stop the motor in this situation, use the
battery disconnect plug or lightly tap the contactor on its end with the handle of a large screw
driver to free the internal contact points.
Note
The main relief valve is factory set to 210 bar and should not need adjusting. Breaking the seal during
the warranty period will invalidate the warranty.
SOL 1
The SOL 1 valve diverts oil from the outrigger control valve firstly to the ground control valve and
then to the platform control valve. Never operate the coil unless it is on the valve cartridge. This risks
burning out the coil.
GROUND CONTROL VALVE
The ground control valve provides full control over all functions apart from the platform slew. The
adjustable relief valve is preset at the factory to approximately 190 bar. This setting is put in place
to ensure only the safe working load (SWL) is lifted. The centre position is closed to prevent oil back
feeding into the tank when operating the platform controls.
SERVICE AND REPAIR
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Figure 3-3 : DC motor showing contactor
and bolt location.
Figure 3-4 : A view of the seal location.
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Contactor
Bolt
Bolt
Seal