45761848_ed3
3
Assembly
General Instructions
Always press on the inner ring of a ball-type bearing when
installing the bearing on a shaft.
Whenever grasping a tool or part in a vise, always use soft sided vise
jaws. Take extra care not to damage threads or distort housings.
Always clean every part and wipe internal part with a thin film of
oil before installation.
Check every bearing for roughness. Don’t use rough bearings.
Unless otherwise noted, always press on the stamped end of a
needle bearing when installing a needle bearing into a recess. Use
a bearing inserting tool similar to drawing TPD786.
Needle Bearing inserting Tool
Shoulder to
Regulate Depth
Pilot to fit I.D. of Bearing.
Length of Pilot to be
approximately 1/8” less than
length of Bearing
15°
(Dwg. TPD786)
Assembly of the Motor Housing
Add O-ring onto Throttle Pin, Insert Throttle Pin with Spring into
Valve hole of Housing assembly.
Add the O-ring onto Valve Plug, screw the Valve Plug into Housing
Thread, tighten it to 5 N.m torque.
Assembly of the Extension Housing on Extended
Models
Press Needle Bearing into Extension Housing using Fixture.
Put Collet Arbor into Extension Housing from front. Support
the front side of the Arbor on the table and press Bearing down
to Extension Housing bearing shoulder, apply Loctite 277
approximately ¼ to 1/3 of the way around the Thread, Thread the
Coupling Nut, tighten it to 10 N.m torque
Assembly of the Angle Head
1. Put the Bearing Retainer Nut onto Arbor from rear end.
2. Insert Spacer on Arbor, press Arbor lower bearing onto Arbor,
then press the Key into Arbor slot, add Gear and use Fixture press
it down to the Bearing.
3. Press Arbor Upper Bearing onto the Arbor, make sure Bearing sit
the Arbor Shoulder.
4. Apply Loctite 243 to the Bearing Retainer Nut Thread,
approximately ¼ to 1/3 of the way around. Put Arbor
subassembly into Angle Housing and tighten the Bearing
Retainer Nut into Angle House to 25 N.m torque
5. Install oil soaked Wick with pliers. Make sure the Wick is located at
the center of the Elbow. See Drawing 46806436.
1.
2.
3.
4.
5.
1.
2.
1.
2.
Angle Housing
Wick
(Dwg. 46806436)
6. Inject 1.5~2 ml Ingersoll Rand No. 67* grease into Bevel Gear
and Wick Cavity in the Angle Head. Do not substitute any other
grease.
Final Assembly
1. Install motor into the Motor Housing. Make sure the Cylinder
Dowel Pin is aligned with the round hole in the Motor Housing.
2. For Straight Model, apply Loctite 243 approximately 2 to
3 pitches on the Clamp Nut Thread, thread it into Housing
Assembly, tighten it to 25 N.m torque, tighten the Housing Nut
too.
3. For Extension Model, place the Arbor Coupling and Clamp
Sleeve on to the Motor assembly
apply Loctite 243 approximately
2 to 3 pitches on the Extension Housing Thread, then install the
Extension Housing assembly.
4. For Angle model, apply Loctite 243 approximately 2 to 3 pitches
on the Clamp Nut outside Thread, fasten it into housing assembly
by approximately 5~6 revolutions, let the Clamp Nut stick out of
the Housing by about 6.5 mm. Put the Aluminium Housing Nut
onto Angle Housing Assembly, apply Loctite 243 approximately 2
to 3 pitches on the Angle Housing Thread, then fasten the Angle
Housing Assembly to Clamp Nut Inner Thread, make sure the
Angle Head is at the opposite side of the Lever, tighten the Clamp
Nut on Fixture. See Drawing 46806428.
Angle Housing
Housing Nut
Clamp Nut
6.5
Lever
(Dwg. 46806428)
5. Place the O-ring in the position of the exterior Sleeve, install it
into Housing. Place the Muffler and Diffuser at the back, apply
Loctite 243 approximately ¼ to 1/3 of the way around the inlet
Bushing Thread, tighten the Inlet Bushing assembly to 15 N.m
torque.
6. Install the Collet and Collet Nut.
