Airetool 720 Series Manual de operação e serviço - Página 6

Procurar online ou descarregar pdf Manual de operação e serviço para Ferramenta eléctrica Airetool 720 Series. Airetool 720 Series 12 páginas. Airetrol rolling motor

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DISASSEMBLY

Clamp the handle (70) in a soft jawed vise and unscrew

(left hand threads) the clutch housing (32) and remove the

shaft/clutch assembly (48, 58 & 57). Pull out the push rod

(52) and spring (51). Unscrew the gear train (59) from the

handle (70) assembly. The motor (60) and valve assembly

(1 thru 6) can now be removed from the handle (70). See

the following paragraphs for disassembly instructions for

the various sub-assemblies.

HANDLE MAINTENANCE

Unscrew the air inlet busing (80) and remove the air inlet

screen (77), spring (76) and throttle valve (75). The air in-

let screen should be washed in solvent and blown out in

reverse of normal air flow. Replace the screen if clogged

or torn. Inspect the throttle valve seal (75) and replace the

valve if necessary. Inspect the "O" rings (78 & 79) and re-

place if necessary. If replacement of the trigger (71) or

throttle pin (72) becomes necessary, check that the spring

pin (73) will clear the back of the trigger slot before install-

ing the pin. If there is interference, grind off enough of the

throttle pin (72) so that the trigger will clear. If this is not

done, the tool will not shut off when the trigger is released.

Before putting the throttle valve (75) back into the tool, push

the throttle pin (72) all the way forward and make sure that

the notch in the end of the throttle pin is vertical so that the

throttle pin will engage the throttle valve properly after as-

sembly.

CLUTCH DISASSEMBLY

Disassemble per instructions in CHANGING THE TORQUE

REGULATING SPRING . Remove ring (57), clutch driver

(58) and washers (49 & 50). Drive out the 1/16" x 3/16"

spring pin (55) and remove the washer (42), cam (43), six

balls (47), trip (56), spring bushing (54), spring (53), Tru

Arc (44) and clutch (45).

GEAR CASE ASSEMBLY

A. Single Reduction

The spider (14) should be pressed out of the rear of the

gear case (13). Remove the retainer ring (11) and press

the bearing (12) out of the front of the gear case (13).

If replacement of the idler gear pins (15) is necessary, they

should be pressed out of the rear of the spider (14) . See

Figure 1 for replacement pin height.

Service Instructions

B. Double Reduction

Both spiders (4 & 5) should be removed from the rear of

the gear case (3). Remove the retainer ring (1) and press

the bearing (2) out of the front of the gear case (3).

If replacement of the idler gear pins (5 & 8) is necessary,

they should be pressed out of the rear of the spiders (4 &

7). See Figure 2 for replacement pin height.

MOTOR DISASSEMBLY

Slip the front bearing plate (20) and bearing (19) off the

front of the rotor (22) and remove the cylinder (25) and four

(4) rotor blades (24). Set the rear bearing plate 27) on the

vise jaws with the rotor (22) hanging down. Use a 7/32"

punch to drive the rotor (22) out of the rear rotor bearing

(28).