MAINTENANCE (Continued)
DISASSEMBLY
General Instructions
1.Do not disassemble the tool any further than neces- sary to replace or repair damaged parts.
2.Whenever grasping a tool or part in a vise, always use
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 neces- sary for repairs or replacement.
4.Do not disassemble the tool unless you have a com- plete set of gaskets and
Disassembly of the Tool
Each Series QS Lever Inline Screwdriver is made using four modules or units which include a motor housing unit, a motor unit, a clutch with bit holder 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:
The thread in the following step is a left hand thread. Rotate the Bit Finder or Housing Cap clockwise to remove it.
1.For models with Bit Finder Bit Holders, unscrew and remove the
For models with Quick Release Bit Holders, unscrew and remove the Clutch Housing Cap (98). Use a thin blade screwdriver to spiral the Retaining Ring (91) out of the groove in the end of the Bit Holder (84). Being careful not to loose the Bit Retaining Ball (85), slide the Spring Seat (90), Retaining Sleeve Spring (89) and the Bit Retaining Sleeve (88) off the Bit Holder.
The thread in the following step is a left hand thread. Rotate the Cover clockwise to remove it.
2.Unscrew and remove the Clutch Adjusting Hole Cover (97). There are two sets of threads with a
3.Using external retaining ring pliers or a thin blade screwdriver, remove the Grip Retaining Ring (96) from the groove in the Clutch Housing.
4.Pull the Housing Grip (93) of the front end of the tool.
The thread in the following step is a left hand thread. Rotate the Clutch Housing clockwise to remove it.
5.Clamp the Inlet Bushing (16) in
6.Push on the output end of the Bit Holder (85) to remove it from the Clutch Housing (82).
7.For Models with Lever Start, slide the Shutoff Spacer
(87)and Wave Washer (87A) off the Bit Holder.
8.If the Clutch Housing Bearing (83)is worn and must be replaced, press it from the Clutch Housing.
9.Carefully remove the Clutch Assembly or Clutch Shaft (81), the Clutch Input Driver (47 or 66), the Clutch Return Spring (46 or 65), and the Push Rod (67).
10.Lightly grasp the flats of the Gear Case in
11.Place a
12.Lift the Exhaust Diffuser (15) off the Back Cap.
13.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 (1).
14.To remove the Throttle Valve Seat, insert a hooked tool through the central opening of the Seat and pull it from the Motor Housing.
15.Using a 1/16” pilot punch, tap the Throttle Lever Pin
(11)out of the Back Cap and remove the Throttle Lever (10).
16.Pull the Throttle Plunger (5) out of the Motor Hous- ing and remove the assembly from the vise.
17.Holding the assembly horizontally, remove the Back Cap, the Memory Chip (9) (if included with the tool), the Back Cap Gasket (7) and the Shutoff Valve (20) (if included with the tool).
18.If the Muffler Elements (8) need to be cleaned or replaced, pull them out of the Back Cap.
19.Grasp the flats at the inlet end of the Motor Housing in
20.Set the assembled Gear Case on the workbench.
21.Remove the Motor Clamp Washer (33) and the Motor Seal (32) from the assembled motor in the Housing.
22.Tap the Motor Housing on a wood block to remove the Motor Assembly from the Housing.
Disassembly of the Adjustable Shutoff Clutch
1.Using a thin blade screwdriver, pry the Clutch Adjust- ing Nut Stop (64) off the end of the Clutch Shaft (52).
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