Manitou TMM 20 K ST5 S1 - Page 91

REPLACE Hydraulic oil
CLEAN Suction strainer for hydraulic oil tank
REPLACE Breather for the hydraulic oil tank
Place the lift truck on level ground, with the engine off, the mast tilted backwards and
the forks fully lowered.

IMPORTANT

Dispose of the drain oil in an ecological manner.
Before any intervention, thoroughly clean the area surrounding the drain plug and the suction cover on the hydraulic
tank.
DRAINING THE OIL
- Place a container under drain plug1 and unscrew the plug.
- Remove the filler plug 2 to ensure that the oil is drained properly.
CLEANING THE STRAINER
- Disconnect clogging indicator 3.
- Disconnect the hoses at the filter.
- Unscrew the four screws 6 from plate 4 and remove the complete filter 5.
- Undo the suction strainer in the bottom of the tank.
- Clean the strainer with a compressed air jet.
- Check the condition of the strainer and replace it if necessary (FILTER CARTRIDGES
AND BELTS).
- Refit the strainer, the plate and the filter, making sure that the seal is correctly
positioned.
- Reconnect the hoses and the clogging indicator.
FILLING WITH OIL
- Clean and refit the drain plug 1 (tightening torque 85Nm).
- Top up with oil (
LUBRICANTS AND FUEL) through the filler port 2.

IMPORTANT

Use a very clean container and funnel and clean the underside of the oil drum before filling.
- Observe the oil level on dipstick8, the oil level should be at the level of the red dot.
- Check for any possible leaks at the drain plug.
REPLACING THE BREATHER
- Unscrew the breather7 and replace it with a new one (FILTER CARTRIDGES
AND BELTS).
HYDRAULIC CIRCUIT DECONTAMINATION
- Leave the engine running (accelerator pedal half way down) for 5 minutes without
using anything on the lift truck, then for an additional 5 minutes using all the
hydraulic movements (apart from the steering).
- Accelerate the engine at full speed for 1 minute, then activate the steering system.
- This operation makes a pollution abatement of the circuit possible through the
hydraulic return oil filter.

IMPORTANT

It is sometimes necessary to bleed the circuits at the pump inlets when an air bubble has formed during draining. In
this case, refer to your dealer.
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647737 M1 (A102020) TMM ... ST5 S1