APRILIA Pegaso 650 I.E., Service Manual

Page: 60 / 320

SERVICE AND SETTING UP
2 - 22
Pegaso 650 I.E.
2.12.1 BLEEDING THE OIL DELIVERY PUMP
a
CAUTION
The bleeding must be always carried out when the oil
has been completely drained from the tank and from
the engine (engine overhaul).
a
CAUTION
The following operations must be carried out during
the oil change, after removing the engine oil filter and
before installing a new one.
◆
Unscrew and remove the small valve (A) positioned on
the bottom of the engine oil filter compartment.
◆
Turn the ignition switch to position “
2
”.
◆
Move the engine stop switch (B) to position “
1
”.
◆
Press the start push button "
r
" (C) and let the starter
run until oil starts to flow out of the small valve seat (A)
(a few seconds are sufficient).
◆
Insert the small valve (A) and tighten it completely.
#(%#+).' !.$ 4/00).' 50 #//,!.4
Carefully read 0.5.1 (PRECAUTIONS AND GENERAL
INFORMATIONS) and 1.2.5 (COOLANT).
For the maintenance intervals, see 2.1.1 (REGULAR
SERVICE INTERVALS CHART) under:
– Coolant.
a
CAUTION
Check the coolant level and top up the expansion
tank with cold engine.
◆
Stop the engine and wait until it has cooled down.
NOTE
Position the vehicle on the side stand on firm
and level ground.
◆
Keep the vehicle in vertical position, with the two
wheels resting on the ground.
◆
Make sure that the level of the fluid contained in the ex-
pansion tank (2) is included between the “
MAX ” and
“ MIN ” marks.
MAX = maximum level
MIN = minimum level
If not, proceed as follows:
◆
Unscrew and remove the expansion tank filling cap (1).
a
WARNING
The coolant is noxious: do not swallow it; if the cool-
ant gets in contact with the skin or the eyes, it can
cause serious irritations.
Do not use your fingers or any other object to check
if there is enough coolant.
a
CAUTION
Do not put additives or other subtances into the fluid.
If you use a funnel or other similar items, make sure
that they are perfectly clean.
◆
Top up the expansion tank by adding coolant, see 1.6
(LUBRICANT CHART), until this almost reaches the
“
FULL ” level.
Do not exceed this level, otherwise the fluid will flow
out while the engine is running.
◆
Put back the expansion tank filling cap (1).
Release 00/2002-02
- 00
a
CAUTION
In case of excessive consumption of coolant and in
case the tank (2) remains empty, make sure that there
are no leaks in the circuit.