New Holland E115SR, Руководство по ремонту, Страница: 12 / 41

1-2
WARNING
Operation of the hydraulic equipment without filling
hydraulic oil or lubricant or without performing air bleeding
will result in damage to the equipment.
3) Perform air bleeding of the hydraulic pump and
slewing motor after loosening the upper drain plug,
starting the engine and keep it in low idle condi-
tion. Complete the air bleeding when seeping of
hydraulic oil is recognized, and tightly plug.
4) Perform air bleeding of the travel motor and the
hydraulic cylinders by running the engine for more
than 5 minutes at low speed without load.
WARNING
Do not allow the hydraulic cylinder to bottom on the
stroke end just after the maintenance.
5) Perform air bleeding of pilot line by performing a
series of digging, slewing and travel.
6) Check hydraulic oil level after placing the attach-
ment to the oil check position, and replenish oil if
necessary.
1.4 ELECTRICAL EQUIPMENT
(1) Do not disassemble electrical equipment.
(2) Handle it carefully not to drop and give a shock.
(3) Turn the key OFF prior to connecting and discon-
necting work.
(4) Disconnect the connector by holding it and press-
ing the lock. Do not pull the wire to apply force to
the caulking portion.
(5) Connect the connector and ensure it is completely
locked.
specified.
6) If it is hard to remove a part according to the
procedure, do not try it by force but investigate the
cause.
7) Place the removed parts in order and attach tags
to facilitate the reassembling.
8) Note the location and quantity of parts commonly
applied to multiple locations.
(3) Inspecting parts
1) Ensure that the disassembled parts are free from
seizure, interference and uneven contact.
2) Measure and record wear condition of parts and
clearance.
3) If the problem is found in a part, repair or replace it
with a new one.
(4) Reassembling hydraulic equipment
1) Turn ON the ventilation fan or open windows to
maintain good ventilation prior to starting the
cleaning of parts.
2) Perform rough and finish cleaning before assem-
bling.
3) Remove washing oil by air and apply clean hydrau-
lic or gear oil for assembling.
4) Always replace the removed O-rings, backup rings
and oil seals with new ones by applying grease in
advance.
5) Remove dirt and moisture from and perform
degreasing on the surface where liquid gasket to
be applied.
6) Remove rust preventive agent from the new parts
before use.
7) Fit bearings, bushings and oil seals using special
jigs.
8) Assemble the parts utilizing matching marks.
9) Ensure all the parts are completely assembled after
the work.
(5) Installing hydraulic equipment
1) Ensure hydraulic oil and lubricant are properly
supplied.
2) Perform air bleeding when:
a. Hydraulic oil changed
b. Parts of suction side piping replaced
c. Hydraulic pump installed
d. Slewing motor installed
e. Travel motor installed
f. Hydraulic cylinder installed
Checking hydraulic oil level
Level gauge
Oil level lines
(Level located
between the two
lines shows
appropriate
amount of oil)