Advertisement
Product Safety Information
Failure to observe the following warnings, and to avoid these potentially hazardous situations, could result in death or serious
•
injury.
•
Read and understand this and all other supplied manuals before installing, operating, repairing, maintaining, changing accessories
on, or working near this product.
•
Always wear eye protection when operating or performing maintenance on this tool. The grade of protection required should be
assessed for each use and may include impact-resistant glasses with side shields, goggles, or a full face shield over those glasses.
Always turn off the air supply, bleed the air pressure and disconnect the air supply hose when not in use, before installing, removing
•
or adjusting any accessory on this tool, or before performing any maintenance on this tool or any accessory.
Note: When reading the instructions, refer to exploded diagrams in Parts Information Manual when applicable (see under Related Documentation for
form number).
Lubrication
Each time a Series QS Drill is disassembled for maintenance
and repair or replacement of parts, lubricate the tool as
follows:
Coat all exposed gears with Ingersoll Rand No. 67 Grease and
1.
work some of the Grease into the gearing of the Spindle Assembly
(40).
Speed Adjustment
Series QS Inline Drills are furnished with the ability to precisely
control speed, within certain ranges. Setting the speed requires a
tachometer. Therefore, the adjustment, although simple, should
only be attempted by a competent technician using the proper
equipment.
The Back Cap (6) has a small, molded stud on the end face of the
Cap nearest the Exhaust Diffuser (15). Take an initial reading of the
tool speed by applying a tachometer to the end of the Chuck (50)
without a drill bit and with the Lever (10) completely depressed. If
the tachometer has a concave tip, close the Chuck completely; if the
tip is convex, open the Chuck completely.
After determining the actual velocity, shut off the air supply and
Disassembly
General Instructions
1.
Do not disassemble the tool any further than necessary to replace
or repair damaged parts.
2.
Whenever grasping a tool or a part in a vise, always use leather–
covered or copper–covered vise jaws to protect the surface of
the part and help prevent distortion. This is particularly true of
threaded members and housings.
3.
Do not remove any part which is a press fit in or on a subassembly
unless the removal of that part is necessary for repairs or
replacement.
4.
Do not disassemble the tool unless you have a complete set of
new gaskets and o-rings for replacement.
Disassembly of the Tool
Each Series QS Lever Inline Drill is made using three modules or
units which include a housing and throttle unit, a motor unit and a
combined gearing with spindle unit. The tool can be disassembled
for repairs to each individual unit without disturbing the other units.
To separate the modules, proceed as follows:
1.
Remove the Chuck (50) using the following technique:
a)Insert the short leg of a 1/4" hex wrench into the jaws of the
Chuck and tighten the Chuck.
b) Using a brass hammer, sharply rap the long leg of the wrench
in a counterclockwise direction to loosen the Chuck.
c) Unscrew and remove the Chuck from the spindle.
2. Use a thin blade screwdriver to spiral the Grip Retainer (42) out of
the groove in the Gear Case (41) and pull the Housing Grip (43)
off the front of the tool.
3. Using a wrench on the flats of the Gear Case, unscrew and
separate the Gear Case from the Motor Housing (1).
4. Remove the Motor Clamp Washer (32) and the Motor Seal (31)
2
WARNING
2.
Use Ingersoll Rand No. 10 Oil to lubricate the motor. Inject
approximately 1 to 2 cc of oil into the air inlet before attaching the
air hose to the tool.
disconnect the air line. Use a 3/4" wrench to loosen the Inlet Bushing.
The longest slot in the Exhaust Diffuser will contain the molded stud
on the Back Cap. Rotate the Diffuser to open the exhaust ports to
increase speed or rotate it to restrict the exhaust to reduce speed.
Being careful not to allow the Diffuser to damage the molded stud,
tighten the Inlet Bushing to 15 ft-lbs. (20 Nm) torque. Connect the
air line and restore the air supply and check the velocity again.
Determine which direction you need to rotate the Diffuser to obtain
the desired speed and then rotate it accordingly. Best results are
achieved by using gradual increments and frequent tachometer
readings. Be sure to turn off the air supply and disconnect the line
when making adjustments.adings. Be sure to turn off the air supply
and disconnect the line when making adjustments.
from the assembled motor in the Housing.
5. Tap the Motor Housing on a block of wood to remove the motor
assembly from the Motor Housing.
6. Lightly grasp the flats of the Motor Housing in leathercovered or
copper-covered vise jaws with the Inlet Bushing (16) upward.
7. Place a 1-3/16" open end wrench on the flats of the Back Cap (6)
to prevent it from rotating, and use a 3/4" wrench to unscrew and
remove the Inlet Bushing.
8. Lift the Exhaust Diffuser (15) off the Back Cap.
9. If the Throttle Valve Spring (14) did not come out of the tool with
the Inlet Bushing, use needle nose pliers to remove it and the
Throttle Valve (13) from the Motor Housing.
10. To remove the Throttle Valve Seat (12), insert a hooked tool
through the central opening of the Seat and pull it from the
Motor Housing.
11. Using a 1/16" pilot punch, tap the Throttle Lever Pin (11) out of
the Back Cap and remove the Throttle Lever (10).
12. Pull the Throttle Plunger (5) out of the Motor Housing and
remove the assembly from the vise.
13. Holding the assembly horizontally, remove the Back Cap, the
Memory Chip (9) (if included with the tool), and the Back Cap
Gasket (7).
14. If the Muffler Elements (8) need to be cleaned or replaced, pull
them out of the Back Cap.
Disassembly of the Gearing
1. Using snap ring pliers, remove the Gear Retainer (33) from inside
the Gear Case and remove the Gear Head Spacer (34).
2. For Series QS30, QS38 and QS51, lightly rap the motor end of the
Gear Case on a wooden work bench top to remove the Planet
Gear Head Drive Plate (35), Planet Gear Head Assembly (36) and
16576332_ed2
Advertisement
