background image

6

SERVICE INSTRUCTIONS — DISASSEMBLY

MOTOR DISASSEMBLY
Slip the front bearing plate and bearing off the front of the
rotor and remove the cylinder and four (4) rotor blades. Set
the rear bearing plate on the vise jaws with the rotor hanging
down. Use a 7/32" punch to drive the rotor out of the rear rotor
bearing.

DL BLACKHEAD DISASSEMBLY

For inspection or replacement of the throttle valve seal, No.
847426, unscrew and remove the throttle valve cap, No.
832207.

Unscrew the air inlet bushing, No. 867882, for inspection
and cleaning of the air inlet screen, No. 833300, and the
muffler, No. 869510. If either the screen or muffler is clogged
or torn, it should be replaced.

RDO HANDLE DISASSEMBLY

For inspection or replacement of the throttle valve, unscrew
the air inlet bushing, No. 867916. The air inlet screen, No.
412775, should also be inspected at this time. Replace the
screen if clogged or torn.

The muffler, No. 869200, may be removed for cleaning and
inspection by removing the muffler screen retainer, No.
847033.

DISASSEMBLY - GENERAL - ALL MODELS

Non-Reversible Models
Insert a hex wrench into the drill chuck and tighten the chuck
securely. Use a suitable hammer to strike the hex wrench
sharply in a counterclockwise direction when facing the
chuck. Remove the drill chuck from the spindle. Unscrew
and remove the gear case. The motor unit may now be
removed from the front of the handle. See the following
paragraphs for complete disassembly instructions on the
various subassemblies.

Reversible Models
Press the adjustment sleeve off the chuck and drive the roll
pin out of the chuck and spindle. Unscrew (left hand threads)
the spindle bearing retainer and remove the spindle assem-
bly from the front of the gear case. Clamp the spindle in a vise
and unscrew the chuck. The spindle may now be pressed
out of the spindle bearings.

Unscrew and remove the gear case. The motor unit may now
be removed from the front of the backhead. See the follow-
ing paragraphs for complete disassembly instructions on the
various subassemblies.

GEAR TRAIN DISASSEMBLY

Unscrew (left hand threads) the spindle bearing retainer
202031. The spindle may now be pressed out of the spindle
bearings.

If replacement of the idler gear pins is necessary, the old pins
should be pressed out the rear and the replacement pins
pressed in as shown in the following diagrams.

SINGLE REDUCTION  MODEL

DOUBLE REDUCTION MODEL

.240

(6.10mm)

.255

(6.48mm)

Front

Rear

.360

(9.14mm)

.375

(9.53mm)

Front

Rear

.240

(6.10mm)

.255

(6.48mm)

Front

Rear

Summary of Contents for 8DL Series

Page 1: ...Non Reversible R Drill 8 Series X D X X XX Concept Second B Generation XX Drill Chuck 3 8 24B 1 4 Hex Quick Change 3 8 Capacity 51 1 4 HD Capacity 1 4 Capacity 3 8 HD Capacity 42 43 38 21 3 8 24B 3 8...

Page 2: ...or working near this tool WARNING Impact resistant eye protection must be worn while operating or working near this tool CAUTION ventilation and or wear a respirator Respirators should be selected fi...

Page 3: ...Avoid OK Avoid OK Drill bits are sharp Handle them carefully to avoid injury Cutting tool maximum speed rating must equal or exceed rated speed of tool Drill bits or accessories not centered properly...

Page 4: ...tended vibration exposure and repetitive wrist trauma Since they vary widely in design material thickness vibration reduction and wrist support qualities it is recommended that the glove tool wrap or...

Page 5: ...and holding the throttle open approximately 30 seconds The lubricator is properly set when a light stain of oil collects on the paper Excessive amounts of oil should be avoided In the event that it b...

Page 6: ...rely Use a suitable hammer to strike the hex wrench sharply in a counterclockwise direction when facing the chuck Remove the drill chuck from the spindle Unscrew and remove the gear case The motor uni...

Page 7: ...tant reassembly proce dures GEAR CASE REASSEMBLY The front spindle bearing No 202032 must be installed on the spindle with its sealed side out visible after assembly MOTOR REASSEMBLY Install the rear...

Page 8: ...921 9 Spider 15T Incl 867922 Chuck Spacer 50 Idler Gear 15T 3 14 50 Pinion Spacer Gear Pin 3 Gear Pin 14 Require 3 Only QTY 1 1 1 1 1 1 1 1 1 1 3 3 1 3 1 1 3 1 1 6 QTY 3 1 1 3 3 6 3 3 3 1 3 1 1 3 1 3...

Page 9: ...ar 15T 7 1st Red Spider 15T Incl 867922 9 Idler Gear 17T Incl 867921 9 Spider 15T Incl 867922 Chuck Spacer 3 14 Pinion Spacer 3 Gear Pin 14 Require 3 Only QTY 1 1 1 1 1 1 1 1 1 1 3 3 1 3 1 3 1 1 6 QTY...

Page 10: ...Plate QTY 1 1 1 1 2 4 1 1 1 PART NO 867873 867880 867936 867937 869179 869180 869183 869584 QTY 1 1 1 1 1 1 1 1 REAR BEARING PLATE Non Rev 867854 Rev 867937 847609 CYLINDER Type Part No Non Rev 86785...

Page 11: ...ap Gasket Inlet Screen Throttle Valve Spring incl 847426 Throttle Valve Seal O Ring 9 16 x 11 16 Inlet Screen Spring QTY 1 1 1 1 1 1 1 1 1 QTY 1 1 1 1 1 1 1 PART NO NAME OF PART 867857 867874 867877 8...

Page 12: ...ng Valve Spring Reversing Valve Retainer Screw Throttle Link Pin Reversible Handle Air Inlet Bushing Muffler Locking Reversing Valve Throttle Valve 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Part No Name of Part...

Page 13: ...L EQUIPMENT ANY CHUCK AND RESPECTIVE KEY LISTED 21 1 4 HEX QUICK CHANGE CHUCK 849414 SUPPORT HANDLE 861006 42 1 4 CHUCK Heavy Duty 849106 CHUCK KEY 849118 51 3 8 CHUCK Small Diameter 849108 CHUCK KEY...

Page 14: ...14 NOTES...

Page 15: ...15 NOTES...

Page 16: ...16 CooperTools 670 Industrial Drive Lexington SC 29072 Phone 803 359 1200 Fax 803 359 2013 www cooperindustries com...

Reviews: