Stihl TS 420 - 13 Special Tools

101TS 410, TS 420
13. Special tools
New special tools
Existing special tools
No. Part name Part No. Use Re-
marks
1 Clamping plate for cut-off
machine
4238 890 2100 Mount cut-off machine on assembly
stand
2 Flange 4238 890 1200 Leakage testing
3 Sleeve 5910 893 1707 For installing tool, 10
4 Tightening ring 4238 893 7000 Piston installation
5 Press sleeve 4238 893 2400 Press in oil seal
No. Part name Part No. Use Re-
marks
1 Assembly stand 5910 890 3101 Mount cut-off machine for repair
(support 5910 850 1650 mounted)
2 Support 5910 850 1650 Mount support on assembly stand
(only for the assembly stand version
5910 890 3100)
3 Pump 0000 850 1300 Test crankcase and carburetor for
leaks
4 Sealing plate 0000 855 8106 Seal exhaust bore
– Hose 135 mm / 5 5/16'' 1110 141 8600 Test carburetor for leaks
– Nipple 0000 855 9200 Test carburetor for leaks
5 Puller 5910 890 4501 Remove limiter caps
6 Socket, 13 mm, long reach 5910 893 2804 Remove and install decompression
valve
7 Plug 4221 025 2200 Leakage testing (on decompression
valve)
8 Locking strip 0000 893 5903 Block crankshaft
9 Socket, S19x12.5L 5910 893 5613 Connector
10 Assembly hook 5910 890 2800 Detach springs from clutch shoes
11 Socket, 13 mm 5910 893 5608 Unscrew flywheel nut
12 Puller 1135 890 4500 Release flywheel
13 Setting gauge 1127 890 6400 Set the air gap between ignition
module and flywheel
14 Ignition system tester, ZAT 4 5910 850 4503 Test ignition system
15 Ignition system tester, ZAT 3 5910 850 4520 Test ignition system
16 Puller 5910 890 4400 Remove oil seals
– Jaw (profile No. 3.1 and 4) 0000 893 3706 Remove oil seal(s)
– Jaw (profile No. 2) 0000 893 3700 Remove oil seal(s)
17 Installing sleeve 1118 893 4602 Protect oil seal on clutch side
18 Assembly drift 1110 893 4700 Remove and install the piston pin
19 Installing tool, 10 5910 890 2210 Fit hookless snap rings in piston