IMER BOOSTER 15 Operation, Maintenance And Spare Parts Manual page 40

- the cleaning device pressure gauge is working properly;
Also make sure that:
- the pipes, connections and respective gaskets and supports are
in good condition and properly tightened;
- the distributor, solenoid valves, pressure gauges and pressure
switches are operating correctly;
- In general, that the entire machine and relevant accessories are
perfectly efficient;
All the indications regarding the type and frequency of intervention
given in the diesel engine operation and maintenance manual
must be respected.
After the first 50 hours, in addition to the maintenance operations
indicated in the Diesel engine manual, and in particular, oil change,
oil filter change and Diesel filter change, alternator belt, change the
compressor oil and the hydraulic circuit oil filter.
17.3 SIX-MONTHLY MAINTENANCE
Every six months arrange for an inspection of the machine by an
authorised IMER service centre.
Spent oil is a special waste. Therefore it must be dis-
posed of according to current legislation.
Always keep notices and symbols on the machine leg-
ible.
In particular, every 500 hours or 6 months (whichever comes first)
have the hydraulic system filter changed and every 1000 hours or
1 year (whichever comes first) change the hydraulic fluid.
18 REPLACING THE PUMPING PISTONS
Prepare the equipment supplied for removing and fitting the
pistons. To remove the pistons, proceed as follows:
Drain out the water tank, pull the evacuation lever (Fig. 25 Ref. 2)
to the vertical position.
- Start the machine and run the engine at low speed and adjust the
pump flow rate to its minimum using the switch (Fig. 25 Ref. 2) on
the electrical cabinet.
- Turn the inversion switch (Fig. 25 Ref. 2)
- While looking into the tank, raise the safety grill when one of the
two pistons reaches the end of the cylinder
- Switch the machine off
The following procedures should be done with the ma-
chine SWITCHED OFF.
It is advisable to remove the upper hopper to facilitate the work.
Use vaseline grease the fit the new rubber pistons.
18.1 REMOVAL
- Undo the head bolt (Fig. 26.1 Ref. 1), mount the extractor (Fig.
26.2 Ref. 2) to the piston and screw in the two bolts (Fig. 26.2 Ref.
3).
- Screw the tie-rod (Fig. 26.2 Ref. 4) fully into the extractor, locate
the centring bush (Fig. 26.3 Ref. 5) on the wear plate, fit the cap
(Fig. 26.3 Ref. 6) and start screwing in the nut (Fig. 26.3 Ref. 7) ;
screwing the nut in extracts the piston (Fig. 26.4 Ref. 8) from the
cylinder.
IMER INTERNATIONAL S.p.A.
Fig. 26.1
Fig. 26.2
Fig. 26.3
Fig. 26.4
18.2 FITTING
- Fit the centring bush (Fig. 27.1 Ref. 1) to the wear plate (Fig. 27.1
Ref. 2).
- Screw the tie-rod (Fig. 27.1 Ref. 3) into the shaft (Fig. 27.1 Ref.
4), locate the piston at the mouth of the centring bush (Fig. 27.1
Ref. 5), fit the washer (Fig. 27.1 Ref. 6) and start screwing in the
nut (Fig. 27.2 Ref. 7) until the piston is fully inside the bush (Fig.
27.2 Ref. 5).
- Unscrew the nut (Fig. 27.2 Ref. 7), remove the washer (Fig. 27.2
Ref. 6) and add the extension (Fig. 27.3 Ref. 8), then repeat the
screwing-in procedure to drive the piston fully home.
- Screw in the bolt (Fig. 27.4 Ref. 9).
- Repeat the procedure for the other piston.
- If removed, reinstall the upper hopper.
40
1
2
3
4
3
5
6
4
7
8
Fig. 26