Snap-On MM250SL Service Manual
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Snap-On MM250SL Service Manual

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MM250SL

SERVICE MANUAL

F
OR
S
N
MM250SL-2000
L
ERIAL
UMBERS
AND
ATER
FORM WC5276
9/94 (Rev. 2/95, 1/96, 7/97, 9/97, 1/00)

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Summary of Contents for Snap-On MM250SL

  • Page 1: Service Manual

    MM250SL SERVICE MANUAL MM250SL-2000 ERIAL UMBERS ATER FORM WC5276 9/94 (Rev. 2/95, 1/96, 7/97, 9/97, 1/00)
  • Page 2 FIGURE D1 ....PRINTED CIRCUIT BOARD (SN-529U) ........16 ........PARTS LIST ................17 FIGURE D2 ....WIRE DRIVE ASSEMBLY (SN-138C24M) ....... 18 ........PARTS LIST ................19 FIGURE E ....FEEDER CABLE ASSEMBLY (FCA-15) ........20 ........PARTS LIST ................20 Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 3 Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 4 FIGURE 1A - SCHEMATIC, WIRE FEED CIRCUIT BOARD FIGURE 1B - SCHEMATIC, SPOT TIME CIRCUIT BOARD Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 5 YELLOW ORANGE BLUE BROWN BLACK WHITE PURPLE GREEN FIGURE 2 - WIRING DIAGRAM, CONTROL CABLE ASSEMBLY Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 6 FIGURE A - FRONT ASSEMBLY Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 7 KNOB, HEAT ............................1 SN-319 CABLE HANGER ..........................2 SN-115 VOLTMETER (ROUND CORNERS) ....................1 SN-115A VOLTMETER (SQUARE CORNERS) (SERIAL# MM250SL-6020 AND LATER) ....... 1 SN-115L LENS, VOLTMETER (ROUND CORNERS) ..................1 SN-115AL LENS, VOLTMETER (SQUARE CORNERS) ..................1 SN-306M LEFT SIDE ............................
  • Page 8 12 FIG. B1 FIGURE B - LEFT SIDE VIEW & INTERNAL COMPONENTS Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 9 DIODE ..............................4 SN-162 RESISTOR, 100 OHM 25W ........................ 1 SN-360 HEAT SINK ASSEMBLY, COMPLETE ....................1 SN-360T HEAT SINK ASSEMBLY, COMPLETE (SERIAL# MM250SL-3949 AND LATER) ......1 SN-255M LEG, HEAT SINK ..........................2 SN-125S CAPACITOR, 12,000UF 50V ....................... 6 SN-286T TRANSFORMER, POWER .........................
  • Page 10 FIGURE B1 - PRINTED CIRCUIT BOARD (SN-774U) Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 11 CB-043 RESISTOR, 1K OHM 1/2W ......................... 2 MI-127 RESISTOR, 100 OHM 1/2W ....................... 1 MI-135A RESISTOR, TRIM 1 MEG OHM ......................1 MI-159 RESISTOR, 330 OHM 1/2W ....................... 1 CB-048 RECTIFIER, BRIDGE .......................... 1 Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 12 FIGURE C - FRONT VIEW - REMOTE FEED UNIT Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 13 " , (SERIAL# MM250SL-2729 AND LATER) ..................1 SN-5110C COMPLETE CABINET ASSEMBLY (MUST BE PURCHASED AS A COMPLETE ASSEMBLY) SN-700 BUMPER PAD, SELF-TAPPING (SERIAL# MM250SL-2572 AND LATER) ........2 SN-246B TERMINAL, GAS-CURRENT ......................1 SN-6190 RECEPTACLE, CONTROL (INPUT) ....................1 SN-5180 FRONT, FEED UNIT ...........................
  • Page 14 11 FIG. D1 FIG. D2 FIGURE D - RIGHT SIDE VIEW & INTERNAL COMPONENTS REMOTE FEED UNIT Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 15 SPOT TIMER BOARD (BEHIND COVER)(FIGURE D1) ..............1 SN-601 STAND OFF, NYLON (BEHIND COVER) ..................4 SN-5220 SPOOL BRACKET ..........................1 SN-5220A " (SERIAL# MM250SL-2729 AND LATER) ..................1 SN-22 SPOOL CLIP ............................. 1 SN-122 SPOOL HUB ASSEMBLY ......................... 1 SN-15 SHAFT ...............................
  • Page 16 FIGURE D1 - PRINTED CIRCUIT BOARD (SN-529U) Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 17 DIODE, 2A ............................3 MI-627 TRANSISTOR, PUT ..........................1 MI-125 RESISTOR, 4.7K OHM 1/2W ......................1 MI-148 RESISTOR, 1.2K OHM 1/2W ......................1 MI-126 RESISTOR, 3.3K OHM 1/2W ......................1 CB-048 RECTIFIER, BRIDGE .......................... 1 Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 18 FIGURE D2 - WIRE DRIVE ASSEMBLY (SN-138C24M) Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 19 DRIVE ROLL (30-45DR) ........................1 SN-61C 1/2 WOODRUFF DRIVE KEY ......................1 SN-131S MOTOR BRACKET, ADJUSTABLE ....................1 SN-139AD INSULATOR, TOP .......................... 1 SN-139 MOTOR BASE INSULATOR ......................1 SN-40 INSULATING WASHER ........................4 Snap-on Tools Corporation Kenosha, WI 53141-1410...
  • Page 20 CABLE FITTING ..........................2 SN-023 WELD CABLE ONLY (14'-10") ......................1 SN-2157E-15 GAS/CURRENT CABLE ASSY., 15' EXTENSION ................1 SN-027-15 GAS HOSE ONLY , 15' ........................1 SN-2008 CABLE TIE ............................. 15 SN-807G BOOT/CABLE COVER ........................1 Snap-on Tools Corporation Kenosha, WI 53141-1410...

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