Section G. Maintenance
Belarus – 90/92 Operating manual
102
Special maintenance
After every 2000 hours of
operation
Operation 44. Checking engine
nozzles
IMPOTANT! Nozzles should be cleaned
and adjusted in specialized workshop of
the dealer.
WARNING: Diesel fuel is sprayed under
high pressure and can cause serious
trauma if nozzle spraying is checked by
hand. Use for this purpose paper or
carton. Wear protective glasses. Before
connecting or disconnecting of fuel lines
shut down diesel for pressure relief.
Before diesel start tighten all
connections of fuel lines. By hand skin
contact with fuel immediately apply to
the medical assistance, otherwise blood
poisoning is possible.
NOTE: It is convenient to have spare
set of nozzles, checked and adjusted to
be quickly installed on the engine.
Take off and replace nozzles, having
performed the following operations:
• Before disconnecting or loosening of
any parts of the fuel system,
thoroughly clean adjacent operation
surface.
• Unscrew nuts (4) and disconnect
high-pressure fuel lines (5) from
nozzles (3) and fuel pump.
• Take off fuel lines (5).
• Unscrew four bolts (1) of the drain
duct and take off drain fuel line (2). Sort
out sealing copper washers (two washer
per each “banjo” bolt).
Unscrew nozzles fixing bolts (6) and take
off nozzles (3).
• Send nozzles to dealer’s workshop for
servicing.
• Put checked, cleaned and adjusted
nozzles in the reverse order.
• Bleed the system.
IMPOTANT! Use new copper washers
during each mounting of nozzles.
https://tractormanualz.com/