Homelite 42cc 46cc Chainsaw Parts Lookup List Manual UT-10517 UT-10518 UT-10520 - 2009

HOMELITE  
42cc/46cc CHAIN SAW  
MODEL NOS. UT10517, UT10518 & UT10520  
REPAIR SHEET  
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
6
8
24  
25  
23  
7
9
1
10  
4
37  
28 29 30  
38  
5
15  
27  
42  
3
33  
13  
1
1
12  
3
1
40  
43  
41  
32  
14  
2
20  
34  
2
6
18  
19  
36  
1
6
17  
39  
22  
21  
35  
2
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
The model number will be found on a plate attached to the engine housing. Always mention the model number in all correspondence regarding your  
CHAIN SAW or when ordering repair parts.  
PARTS LIST  
KEY  
NO.  
PART  
NUMBER  
KEY  
NO.  
PART  
NUMBER  
DESCRIPTION  
QTY  
DESCRIPTION  
QTY  
1
2
671076001  
310627001  
Guide Bar Nut (5/16-18) ............................................. 2  
Guide Bar (UT10517 — 18 in. with SAFE-T-TIP)  
24  
671258001  
Chain (UT10517 — .375 x 62 link, 18 in.)................... 1  
Chain (UT10518 — .325 x 72 link, 18 in.)................... 1  
Chain (UT10520 — .325 x 58 link, 20 in.)................... 1  
Chain Cover Assembly............................................... 1  
Pre-Filter..................................................................... 1  
Inner Guide Plate........................................................ 1  
E-Ring......................................................................... 1  
Cupped Washer.......................................................... 1  
9
01430001  
00920027  
9
(
Includes Key Nos. 42, 43).......................................... 1  
25  
300957015  
900844001  
631036001  
671103001  
631060001  
300958001  
3
10628001  
10629001  
Guide Bar (UT10518 — 18 in. with SAFE-T-TIP)  
Includes Key Nos. 42, 43).......................................... 1  
Guide Bar (UT10520 — 20 in. with SAFE-T-TIP)  
Includes Key Nos. 42, 43).......................................... 1  
(
26  
27  
3
(
28  
29  
30  
3
4
5
6
7
308116001  
631038001  
T660619001  
660636001  
518042021  
Guide Bar Adjustment Screw..................................... 1  
Outer Guide Plate....................................................... 1  
Screw (6-19 x 1/2 in. T.F.) ........................................... 1  
Screw (10-16 x 1-1/2 in. Special)............................... 3  
Top Cover, Black (UT10517)....................................... 1  
Top Cover, Red (UT10518/UT10520) ......................... 1  
Sprocket Drum and Bearing Assembly  
(UT10517 — .375 chain)............................................. 1  
300958002  
Sprocket Drum and Bearing Assembly  
(
UT10518/UT10520 — .325 chain)............................. 1  
518042010  
31  
32  
33  
34  
35  
36  
37  
631039001  
678027002  
300759005  
631035001  
900894001  
638455001  
511709002  
Spike Bar.................................................................... 1  
Lock Nut (10-24)......................................................... 1  
Fuel Filter.................................................................... 1  
Chain Catcher ............................................................ 1  
Muffler Gasket............................................................ 1  
Heat Shield................................................................. 1  
Choke Lever, Yellow (UT10517).................................. 1  
Choke Lever, Black (UT10518/UT10520)................... 1  
Ignition Switch............................................................ 1  
Screw (10-14 x 7/8 in., Truss Hd.).............................. 2  
Screw (10-24 x 1/2 in.) ............................................... 1  
Screw (10-14 x 1/2 in.) ............................................... 1  
Safety Tip (UT10517).................................................. 1  
Safety Tip (UT10518/UT10520).................................. 1  
Screw (Hex Head)....................................................... 1  
Scabbard (UT10520, Not Shown) .............................. 1  
Scabbard (UT10517/UT10518, Not Shown)............... 1  
Operator’s Manual (960970011)  
8
9
660617001  
518049002  
870174001  
660625001  
518055002  
308067004  
660632001  
300948002  
300949002  
660624001  
638467002  
638673001  
309310001  
671079001  
660626001  
631055001  
Screw (8-16 x 16 mm Torx T.F.) .................................. 1  
Air Filter Cover............................................................ 1  
Spark Plug (Champion RCJ6Y) .................................. 1  
Screw (10-24 x 5/8 in. Torx Pan Hd.).......................... 1  
Fan Housing Baffle..................................................... 1  
Starter Cover Assembly ............................................. 1  
Screw (10-14 x 5/8 in., Truss Hd.).............................. 2  
Fuel Cap Assembly .................................................... 1  
Oil Cap Assembly....................................................... 1  
Screw (8-32 x 5/16 in.) ............................................... 1  
Outlet.......................................................................... 1  
Spark Screen.............................................................. 1  
Muffler Assembly (Includes Key Nos. 17-19) ............. 1  
Lock Nut (10-32)......................................................... 3  
Muffler Bolt (Square Hd.)............................................ 3  
Combination Wrench.................................................. 1  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
511709012  
38  
39  
40  
41  
42  
760338001  
660637001  
660621001  
660618001  
308949001  
308944001  
4
4
3
4
660640001  
518061001  
5
9
3
18061002  
87000210  
-11-09  
(
REV:04)  
3
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
1
SEE  
FIGURE B  
24  
5
2
23  
2
7
6
2
2
5
4
28  
55  
18  
3
23  
2
21  
20  
2
5
3
4
17  
19  
16  
14  
13  
15  
29  
5
30  
3
6
3
5
3
5
2
3
7
12  
51  
0
6
7
5
34  
33  
32  
4
8
1
1
4
0
4
3
8
39  
31  
9
10  
8
8
4
7
41  
4
5
46  
40  
4
4
4
39  
3
9
4
2
Figure A  
4
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
The model number will be found on a plate attached to the engine housing. Always mention the model number in all correspondence regarding your  
CHAIN SAW or when ordering repair parts.  
PARTS LIST (FIGURE A)  
KEY  
NO.  
PART  
NUMBER  
KEY  
NO.  
PART  
NUMBER  
DESCRIPTION  
QTY  
DESCRIPTION  
QTY  
1
2
3
4
5
6
7
8
9
700106001  
671087001  
570226001  
660628001  
671077001  
560955001  
671088001  
671080001  
660622001  
690765001  
300951004  
Heat Reflector Tape.................................................... 1  
Spacer Insert.............................................................. 4  
Oil Outlet Grommet .................................................... 1  
Guide Bar Bolt............................................................ 2  
Speed Nut (“U”-type) ................................................ 2  
Duck Bill Valve............................................................ 2  
Element ...................................................................... 2  
Washer ....................................................................... 4  
Screw (10-24 x 2 in.)................................................... 4  
Hose Clamp................................................................ 1  
Chassis Assembly, Black (UT10517).......................... 1  
Chassis Assembly, Gray (UT10518/UT10520) ........... 1  
Speed Nut (“U”-type) ................................................ 1  
Rubber Tubing/07454-22 ........................................... 1  
Rubber Tubing/07454-34 ........................................... 1  
Spring......................................................................... 1  
Retaining Ring............................................................ 1  
Hand guard, Black (UT10517).................................... 1  
Hand guard, Gray (UT10518/UT10520)...................... 1  
Handguard Actuating Pin ........................................... 1  
Brake Band................................................................. 1  
Spring Pin................................................................... 1  
Spring......................................................................... 1  
Chain Brake Cover ..................................................... 1  
Screw (8-16 x 5/16 in.) ............................................... 3  
Chain Brake Link Assembly ....................................... 1  
Spring Pin (Small)....................................................... 1  
Screw (8-32 x 5/8 in.) ................................................. 1  
Pivot (Right Hand) ...................................................... 1  
Pivot (Left Hand)......................................................... 1  
Hair Pin....................................................................... 1  
Throttle Cable............................................................. 1  
31  
32  
33  
34  
308088001  
570247004  
570227001  
518044002  
518044012  
511724001  
Fuel Pump .................................................................. 1  
Rubber Tubing............................................................ 1  
Split Grommet ............................................................ 1  
Control Panel, Black (UT10517) ................................. 1  
Control Panel, Gray (UT10518/UT10520)................... 1  
Front Handle, Black (UT10517) .................................. 1  
Front Handle, Gray (UT10518/UT10520).................... 1  
Screw (12-14 x 1 1/2 in.) ............................................ 1  
Rear Handle, Black (UT10517)................................... 1  
Rear Handle, Gray (UT10518/UT10520)..................... 1  
Extension Spring ........................................................ 2  
Screw (10-14 x 5/8 in.) ............................................... 2  
Screw (10-14 x 1/2 in.) ............................................... 3  
Lockout Throttle, Yellow (UT10517) ........................... 1  
Lockout Throttle, Black (UT10518/UT10520)............. 1  
Screw (10-14 x 3/4 in.) ............................................... 2  
Screw (10-14 Thread Twin Helix)................................ 1  
Spring Retainer........................................................... 1  
Screw (10-14 x 1 3/8 in.) ............................................ 1  
Handle Cover, Black (UT10517) ................................. 1  
Handle Cover, Gray (UT10518/UT10520)................... 1  
Torsion Ring................................................................ 1  
Trigger, Yellow (UT10517)........................................... 1  
Trigger, Black (UT10518/UT10520) ............................ 1  
Plug, Black (UT10517)................................................ 1  
Plug, Gray (UT10518/UT10520) ................................. 1  
Isolator Plate .............................................................. 1  
Isolator Spring............................................................ 1  
Screw (10-24 x 5/8 in.) ............................................... 1  
Screw (8-32 x 5/8 in.) ................................................. 2  
Ignition Switch Harness ............................................. 1  
Ignition Kit .................................................................. 1  
35  
511724011  
3
3
6
7
660631001  
511721004  
511721014  
10  
38  
39  
40  
41  
671101001  
660632001  
660618001  
518051003  
11  
300951014  
12  
13  
14  
15  
16  
17  
671077002  
570247002  
570247003  
638024001  
671075001  
511723101  
518051013  
42  
43  
44  
45  
46  
660629001  
660719001  
631050001  
660633001  
511722003  
511723111  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
620282001  
631063002  
671095001  
678113001  
511720002  
660634001  
300954001  
671099001  
660635001  
671096001  
671097001  
631034002  
900885001  
511722013  
4
4
7
8
678037001  
518052001  
518052011  
49  
518050001  
518050011  
50  
51  
52  
53  
54  
55  
631051001  
T671980001  
660630001  
660639001  
290195003  
300953001  
5
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
23  
20  
24  
30  
25  
21  
22  
29  
2
6
7 28  
2
1
2
3
4
25  
31  
33  
32  
4
5
7
8
9
6
17  
19  
18  
16  
9
7
8
1
2
3
1
10  
14  
15  
11  
Figure B  
6
HOMELITE 42cc/46cc CHAIN SAWS – MODEL Nos. UT10517, UT10518 & UT10520  
The model number will be found on a plate attached to the engine housing. Always mention the model number in all correspondence regarding your  
CHAIN SAW or when ordering repair parts.  
PARTS LIST (FIGURE B)  
KEY  
NO.  
PART  
NUMBER  
KEY  
NO.  
PART  
NUMBER  
DESCRIPTION  
QTY  
DESCRIPTION  
QTY  
1
2
3
4
5
6
7
8
9
640200004  
678747001  
640350002  
678183001  
620392001  
309160001  
570220001  
570221002  
671089002  
640843001  
660627001  
678123001  
631049001  
309012001  
300950001  
300945001  
T610389001  
Cylinder ...................................................................... 1  
Piston Ring................................................................. 1  
Piston ......................................................................... 1  
Retaining Ring............................................................ 2  
Piston Pin ................................................................... 1  
Crankshaft Assembly ................................................. 1  
Shaft Seal................................................................... 2  
Bearing Case.............................................................. 2  
Ball Bearing ................................................................ 2  
Crankcase .................................................................. 1  
Screw (8-32 x 5/8 in.) ................................................. 2  
Nut (5/14-24) .............................................................. 1  
Flat Washer................................................................. 1  
Flywheel Assembly..................................................... 1  
Oil Intake Tube Assembly........................................... 1  
Oil Pump Assembly.................................................... 1  
Left Hand Worm ......................................................... 1  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
631061001  
300960003  
671267001  
570243001  
518047001  
308081001  
671072001  
660629001  
518045001  
900886001  
309364001  
518048001  
660634001  
660655001  
570242001  
309890003  
Thrust Washer ............................................................ 1  
Clutch Assembly ........................................................ 1  
Wire Clamp................................................................. 1  
Intake Boot................................................................. 1  
Carburetor Adaptor Seal ............................................ 1  
Carburetor Adapter .................................................... 1  
Flat Washer................................................................. 1  
Screw (10-14 x 3/4 in.) ............................................... 3  
Carburetor Plate......................................................... 1  
Carburetor Gasket...................................................... 1  
Carburetor Assembly.................................................. 1  
Air Filter Base ............................................................. 1  
Screw (8-16 x 5/16 in.) ............................................... 1  
Screw (10-32 x 1 3/4 in.) ............................................ 2  
Grommet .................................................................... 1  
Short Block Assembly (Inc. Key Nos. 1-11) ............... 1  
10  
11  
12  
13  
14  
15  
16  
17