Airetool 720 Series Instrukcja obsługi i serwisowania - Strona 7
Przeglądaj online lub pobierz pdf Instrukcja obsługi i serwisowania dla Elektronarzędzie Airetool 720 Series. Airetool 720 Series 12 stron. Airetrol rolling motor
Drukuj stronęREASSEMBLY IN GENERAL
All parts should be washed in a solvent and inspected for
damage or wear. Particular attention should be given to all
bearings, gears, gear pins and rotor blades as failure of
these parts could cause damage to more expensive parts.
Rotor blades should be replaced if they measure less than
3/16" on either end. Inspect and replace any "O" rings or
seals that show signs of wear or deterioration. All gears,
gear pins and open bearings should receive a generous
amount of No. 2 Moly grease during reassembly. When
assembling the gear case to the back head, the case should
be torqued to 300/325 in. lbs. (33.9/36.7 Nm). Do Not Over-
tighten , as it can distort the valve assembly and cause the
valve to stick. Reassembly of all of the various sub-assem-
blies is in the reverse order of disassembly; however, the
following paragraphs list some of the more important reas-
sembly procedures.
CLUTCH ASSEMBLY
During the reassembly of the clutch assembly, all parts
should receive a thin coating of a mixture of 10W machine
oil and No. 2 Moly grease. The clutch (45), Tru Arc (44),
spring (53), spring bushing (54), trip (56), balls (47), cam
(43) and washer (42) must be in position on the clutch shaft
(48) before installing the spring pin (55). Install the spring
pin (55) so it is below the surface at both ends. The instal-
lation of the balls (47) can be simplified by filling the ball
slots in the shaft (48) with grease if desired.
MOTOR ASSEMBLY
Install the rear rotor bearing (28) into the rear bearing plate.
Press the bearing plate assembly (press on the bearing's
inner race) onto the rear rotor shaft until there is approxi-
mately .001" clearance between the rear bearing plate and
the rotor. Install the cylinder (25) with the slotted end to-
ward the front bearing plate.
If a new rotor or complete motor assembly is to be installed,
first install with RC609 Loctite, a push rod guide (61) - with
the countersunk end in first, and the other end flush with
the end of the rotor.
Service Instructions
VALVE ASSEMBLY
Install valve sleeve (66) with Loctite RC609. The deepest
notch (5/32" deep) in the sleeve must be flush with the
valve insert (64) at the end adjacent to the motor package
and the 1/16" diameter hole must be centered in the slot.
Allow Loctite to cure per instructions on Loctite container.
CLEAN sleeve thoroughly before installing the valve spool
(67). The spool must move freely with the valve washer
installed. Orient spool stop (62) as shown, and install pin
(65) flush with the inside of the spool stop.
PUSH ROD
It is essential that the push rod be straight and that the
ends be uniformly rounded and free from burrs, or erratic
operation can result. The length of the push rod (52) deter-
mines the location of the valve spool when the tool is run-
ning forward and has been sized to be used without trim-
ming in most cases. When installing a replacement push
rod - before screwing on the clutch cover, make sure that
the two washers (49 & 50) are in place and that the end of
the push rod does not touch the end of the trip (56) when
the spindle assembly is held tightly in position. If the rod
must be shortened, grind uniformly off the VALVE END of
the rod just enough to allow the trip to reset without inter-
ference.
SAFETY CHECK
After repair or replacement of parts, servicing or prolonged
storage, the tool should be tested to verify that the auto-
matic torque reversal device is functioning properly. SEE
CAUTION on page 5 !
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