Virtual Dissection Dewalt 1 full

Latest revision as of 11:09, 11 April 2007

Post Disassembly Analysis

Basic Description

• Product: Heavy Duty 1/4 inch Drill
• UNSPC code (for power drill): 2711270
• Make: DeWalt
• Model: DW 217
• Power: 120 V AC at 50 to 60 Hz, 6.7 Amps
• Speed: 0 to 4000 RPM
• Weight: 3.2 lbs or 1.45 kg

Disassembly and Assembly Procedure

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Post Diassembly Analysis

The table belows lists individual parts for DeWalt DW 217 Drill.

Table: DeWalt DW 217 Drill Parts

Part #	Part Name	Quantity	Function	Picture	3D model	2D model
1	Ball Bearing	1	Assists the smooth rotation of the motor.
2	Left Brush Holder	1	Holds the brush on left side.
3	Right Brush Holder	1	Holds the brush on right side.
4	Ball Bearing at chuck	1	Assists the smooth rotation of the chuck.
5	1/4 Chuck & Key	1	Holds different types of ends. useful for various tasks.
6	Coil Spring	1	Regulates the contact between the journal and the brush.
7	Gear Case	1	Secures chuck in place and houses gears.
8	Fan	1	Vents the inside of drill and cools internal mechanisms.
9	Stator	1	Creates electromagnetic field and rotates the motor.
10	Baffle	1	Holds stator in place.			File:Roundcase.png 50px
11	Cup	1	Secures ball bearing in place with snug-fit.
12	Bearing for Shaft	1	Allows the smooth rotation of the shaft.
13	Gasket	1	Seal the chuck assembly
14	Output Gear	1	Rotational motion of the motor reduced in speed is put out through this gear for actual rotational motion of the drill bit.	drill bit.
15	Needle Bearing	1	Assists the smooth rotation of the motor.
16	Front Housing	1	Protects inner structures from impact and dust.			File:Housing1.png 50px
17	Rear Housing / Handle	1	Protects inner structures from impact and dust.			File:Housing2.png 50px
18	Screw (type 1)	2	Holds left and right brush holders in place.			File:Short screw.png 50px
19	Brush	1	Connect the rotor to the electric circuit
20	Screw (type 2)	3	Holds front and rear housings together.
21	Gear Case Cover	1	assists the smooth rotation of the motor.
22	Restrainer	1	assists the smooth rotation of the motor.
23	Armature	1	assists the smooth rotation of the motor.
24	Gear & Shaft	1	Transmits direct torque from the motor to output gear.
25	Screw (type 3)	3	Holds chuck casing and front housing together.
26	Circuit Box	1	Controls the current and voltage through the drill.
27	Direction Switch	1	Switches the direction of current to switch the direction of chuck rotation.			File:Direction switch.png 50px
28	Trigger Lock	1	assists the smooth rotation of the motor.
29	Pin	1	Holds circuit box and direction switch box together.
30	Direction Switch Box	1	Controls the rotational direction of the shaft thus for the drill bit.			File:Top box.png 50px
31	Trigger	1	Pulled in to turn the drill on. Can be pressed in various degrees to vary the rotational speed of drill bit.
32	Rotor	1	Allows the rotation of the shaft through magnetic field.