Manitou MI 18 G - Page 88

3-28
E6 - HYDRAULIC OIL
DRAIN
E7 - FILTER CAP FOR HYDRAULIC OIL TANK
CLEAN
E8 - SUCTION STRAINER FOR HYDRAULIC OIL TANK
CLEAN
E9 - HYDRAULIC RETURN OIL FILTER
CHANGE
Up to machine n° 856629
Place the lift truck on level ground with the engine stopped, and the mast lowered as far as
possible.
Before any intervention, thoroughly clean the area surrounding the drain plugs and the plate on the hydraulic
tank.
DRAINING THE OIL
- Place a container under drain plug 1 (fig. E6/1) and unscrew the plug.
- Remove filler plug 2 (fig. E6/2) in order to ensure that the oil is drained properly.
Dispose of the drain oil in an ecological manner.
CLEANING G OF FILTER PLUG
- Remove the filler plug cover 3 (fig. E6/3) by twisting through a quarter turn.
- Remove and clean the filter 4 (fig. E6/3).
- Clean the filter holder 5 (fig. E6/3).
- Put the filter and the cover back in place on the holder.
CLEANING THE STRAINER
- Disconnect the hoses 6 (fig. E6/4).
- Undo the screws 7 (fig. E6/4) and remove the holder 8 (fig. E6/4).
- Unscrew suction strainer 9 (fig. E6/5), clean it using a compressed air jet, check its condition
and replace it, if necessary (see: 3 - MAINTENANCE: FILTERS CARTRIDGES AND BELTS).
- Refit the strainer, the holder and reconnect the hoses.
REPLACEMENT OF THE OIL FILTER
NOTA: Carefully clean the outside of the oil filter and its hoses to prevent dust from getting into
the hydraulic system.
- Place a container under the hydraulic return oil filter.
- Remove the hose clamps 10 (fig. E6/6).
- Unscrew the hydraulic return oil filter clamp 11 (fig. E6/6).
- Refit the assembly with a new oil filter (see: 3 - MAINTENANCE: FILTERS CARTRIDGES AND
BELTS).
FILLING UP THE OIL
- Clean and refit drain plug 1 (fig. E6/1) (tightening torque 29 to 39 N.m).
- Fill up with oil (see: 3 - MAINTENANCE: LUBRICANTS AND FUEL) through filler port 12 (fig. E6/2).
Use a clean container and funnel and clean the underside of the oil drum before filling.
- Check the oil level on the dipstick 13 (fig. E6/2) (see: 3 - MAINTENANCE: A – DAILY OR EVERY 10
HOURS OF SERVICE)
- Check for any possible leaks at the drain plug.
HYDRAULIC CIRCUIT DECONTAMINATION
- Let the engine run (accelerator pedal at halfway
travel) for 5 minutes without using anything on
the lift truck, then for 5 more minutes while using
completely the hydraulic movements (except the
steering system).
- 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.
E6/3
4
5
3
E6/5
9
E6/4
6
6
6
8
7
E6/2
2
12
13
E6/1
1
E6/6
10
11
10
11
647377 (31/03/2014)