Parts Manual Products ZT3500 Series Zero-Turn Riding Mower Mfg. No. Description 5900506 ZT3500, 24HP Briggs & Stratton w/ 48" Mower (ZT3500B2448) 5900521 ZT3500, 27HP Briggs & Stratton w/ 48" Mower (ZT3500B2748) Manual Part No. Revision G Rev. Date: 6/20/2012
Table Of Contents PRODUCT COMPONENTS Main Frame & Front Caster Group... 4 Rear Bumper Group... 6 Engine & PTO Group... 8 Instrument & Control Panel Group... 10 Pump Drive Group... 12 Motion Control Group... 14 Hydraulic Group... 16 Seat Mount & Floor Group... 18 Fuel Tank & Mount Group... 20 Parking Brake Group... 22 Deck Lift Group... 24 Wheel & Tire Group... 26 Decal Group - Brand & Model... 28 Decal Group - Safety & Operation... 30 Evap Canister Group... 32 Spindle Service Parts... 34 48" Mower Deck - Hanger Chains... 36 48" Mower Deck - Housing, Covers, Spindles & Blades... 38 48" Mower Deck - Pulleys, Belts & Idler Arm... 40 48" Mower Deck - Rollers... 42 Torque Specification Chart... Inside Back Cover PAGES
Main Frame & Front Caster Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302647 4
Main Frame & Front Caster Group REF NO PART NO. QTY. DESCRIPTION 1 5025457 2 BOLT, 1/4-28 X 1/2, GD5 YZ 2 5402539C 2 WELD, CASTER YOKE, IS500Z 3 5020884 4 BEARING, TAPERED ROLLER, 1" 4 5021072 2 SEAL, GREASE 5 5025449 4 WASHER, BELLEVILLE - 1.500 X.755 6 5025448 2 NUT, 3/4-16, HEX JAM NYLON LOCK 7 5102929SM 2 CAP, LOW PROFILE, STEEL 8 5406614C 1 WELD, MAIN FRAME, 48 9 5100716 1 GROMMET, 2" ID 10 5021379 1 GROMMET, 7/8 11 5020883 2 CUP, BEARING (SV) 12 5020095 2 GREASE FITTING, 1/4-28 STRAIGHT Footnotes 5
Rear Bumper Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302648 6
Rear Bumper Group REF NO PART NO. QTY. 1 5407854C 1 2 5403593A 1 3 5025017X12 4 4 5025158 4 5 5025396 4 6 5025011X6 2 7 5025155 2 8 5025392 2 DESCRIPTION WELD, PLATE, BUMPER SHIELD, MUFFLER - BLK BOLT, 1/2-13 X 1-1/2 GD5 YZ WASHER, 1/2 SAE NUT, 1/2-13 HEX NYLOCK FLANGE BOLT, 5/16-18 X 3/4 GD5 WASHER, 5/16 SAE NUT, 5/16-18 HEX NYLOCK FLANGE Footnotes 7
Engine & PTO Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302599 8
Engine & PTO Group REF NO PART NO. QTY. 1 5100907 1 2 5050407X8 1 3 5101337 1 4a 5102865 1 4b 5102866 1 5 5048681 1 6 5100915 1 7 5404967A 1 8-1 10 690341 4 11 5025011X14 3 12 5025188 2 13 5025155 3 14 5025057 3 15 792303 1 16 792105 1 17-1 18-1 19-1 20-1 21 696854 1 22 5101641 1 23 5025010X8 1 24 5025154 1 25 5021500 1 26 5025391 1 27 5050833X11 1 28 5403576 1 28 5403576 1 30 5025585 2 DESCRIPTION MUFFLER, B&S-ELS KEY, 1/4 SQ. X 1.00 PULLEY, PUMP DRIVE, 4.857 OB X 1" BORE BOLT, CRANKSHAFT, 7/16 X 2-3/4 (S/N: 2015745413 & Below) BOLT, CRANKSHAFT, 7/16 X 3 (S/N: 2015745414 & Above) HOSE, OIL DRAIN CLUTCH, # 5219-34A, ELECTRIC, IS500Z ANCHOR, CLUTCH - BLK ENGINE, B&S SCREW, SEM HEX HEAD BOLT, 5/16-18 X 1-3/4 GD5 YZ WASHER, 5/16" INT. TOOTH LOCK WASHER, 5/16 SAE NUT, 5/16-18 HEX NYLON LOCK PRE CLEANER (SV) AIR CLEANER W/ PRE CLEANER (SV) (INCLUDES REF NO 15) SEE PUMP DRIVE GROUP SEE PUMP DRIVE GROUP SEE PUMP DRIVE GROUP SEE PUMP DRIVE GROUP OIL FILTER (SV) (NOT SHOWN) SCREEN, SPARK ARRESTER (NOT SHOWN) BOLT, 1/4-20 X 1, GD5 WASHER, 1/4 SAE CLAMP, VINYL INSULATED NUT, 1/4-20 HEX NYLOCK FLANGE WIRE LOOM, 1/2 ID X 11 IN (NOT SHOWN) WIRE HARNESS, JUMPER, WARNER CLUTCH (NOT SHOWN) WIRE HARNESS, JUMPER, WARNER CLUTCH (NOT SHOWN) BELLEVILLE WASHER 1.1875 X.442 X.089 (S/N: 2015745414 & Above) Footnotes 9
Instrument & Control Panel Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302131 10
Instrument & Control Panel Group REF NO PART NO. QTY. DESCRIPTION 1 5020811 1 CABLE, THROTTLE CONTROL, 38 2 5025095 2 NUT, 1/4-20 HEX NYLON LOCK 3 5025010X6 2 BOLT, 1/4-20 X 3/4 GD5 YZ 4 1709188 1 PLUG,.820X1.44 HOLE, BLACK PLASTIC 5 5022269 1 O-RING, 7/8 ID X 1/16 W 6 5022222 1 RING, SWITCH RETAINER 7 5025035 1 NUT, 3/8-24 HEX 8 5406624A 1 PLATE, CONTROL PANEL - BLACK 9 1737853 1 SWITCH ASMY-IGNITION INDAK NO KEYS/HDWR 10a 5409263SM 1 * HOUR METER, ASSEMBLY (S/N: 2015551938 & Above) 10b 5102417 1 HOUR METER (S/N: 2015551937 & Below) 11 5022180 1 SWITCH, BLADE ENGAGEMENT 12 5046501 1 CABLE, CHOKE CONTROL, 47 13 5025299X4 2 SCREW, 1/4-20 X 1/2 ALLEN BH Footnotes * When replacing this hour meter, please call our service department at 1-800-933-6175 ext. 709 11
Pump Drive Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302652 12
Pump Drive Group REF NO PART NO. QTY. 1 5025057 1 2 5025394 3 3 5025392 1 4 5025141X26 1 5 5022173 1 6 5101379 1 7 5025337 1 8 5025011X20 1 9 5025058X24 1 10 5025156 2 11 5025165 2 12 5042658 1 13 5020876B 1 14 5402919A 1 15 5025013X16 1 16 5101380 1 17 5046860 1 18 5041930 1 19 1715435 1 20 5025544 1 DESCRIPTION NUT, 5/16-18 HEX NYLON LOCK NUT, 3/8-16 HEX NYLOCK FLANGE NUT, 5/16-18 HEX NYLOCK FLANGE EYE BOLT, 5/16-18 X 3-1/2, 2-1/8 THRD. BELT, # 7-5332 PULLEY, IDLER, STATIONARY WASHER, 5/16 USS BOLT, 5/16-18 X 2-1/2" GD5 YZ BOLT, 3/8-16 X 3 GD5 TFL WASHER, 3/8 SAE WASHER, 3/8 FENDER SPACER,.39 X.75 X 1.06 BUSHING, BRASS, 3/4 X 1 X 1 WELD, IDLER ARM, SNAPPER PRO - BLK BOLT, 3/8-16 X 2 GD5 YZ PULLEY, IDLER, ADJUSTABLE SPACER,.39 X 1.00 X.50 SPACER,.38 X.50 X.27 SPRING, EXTENSION, 1.00 BOLT, HEX FLG, SER GD5 3/8-16X2, PATCH, CZ Footnotes 13
Motion Control Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302653 14
Motion Control Group REF NO PART NO. QTY. 1 5022068 2 2 5402862A 2 3 5402984A 2 4 5103106A 2 5 5025127 16 6 5025011X8 2 7 5025154 12 8 5021146 2 9 5025011X18 2 10 5046420 2 11 5402910A 2 12 5022628 2 13 5100940 2 14 5100941 4 15 5021098 2 16 5025156 4 17 5408134A 1 18 5408135A 1 19 5047055A 1 20 5047056A 1 21 5025015X6 2 22 5025044 2 23 5025391 14 24 5025013X6 4 25 5010114 2 26 5025013X14 4 27 5025057 4 28 5025010X6 10 29 5025394 8 30 5025155 2 31 1960541 4 32 5025011X9 4 33 5023212 2 34 5025033 6 35 5025010X5 6 DESCRIPTION GRIP, FOAM, 3/4 ID, 16 LONG NEUTRAL LOCK, SNAPPER PRO 36-44 - BLK SWITCH PLATE, MOTION CONTROLS - BLK MOUNT, CONTROL ARM NUT, 5/16-18 HEX SERRATED FLANGE (SMALL) BOLT, 5/16-18 X 1 GD5 YZ WASHER, 1/4 SAE BALL JOINT, 5/16-24, FEMALE BOLT, 5/16-18 X 2-1/4" GD5 YZ ROD, HYDRO LINKAGE PLATE, CONTROL TRANSAXLE - BLK BALL JOINT, 5/16-24, LH FEMALE DAMPENER, CONTROL,#(P6709/P3610) BALL STUD, 5/16 X.50,# PC-477-2) BEARING, BRONZE FLANGE, 3/4 WASHER, 3/8 SAE WELD, MOTION CONTROL, RH - BLK (Not Shown) WELD, MOTION CONTROL, LH - BLK WELD, HANDLE MOTION CONTROL, LH - BLK WELD, HANDLE MOTION CONTROL, RH - BLK (Not Shown) BOLT, 7/16-14 X 3/4, GD 5 YZ NUT, 7/16-14 HEX TOP LOCK NUT, 1/4-20 HEX NYLOCK FLANGE BOLT, 3/8-16 X 3/4 GD5 YZ COLLAR, 3/4" SPLIT BOLT, 3/8-16 X 1-3/4 GD5 NUT, 5/16-18 HEX NYLON LOCK BOLT, 1/4-20 X 3/4 GD5 YZ NUT, 3/8-16 HEX NYLOCK FLANGE WASHER, 5/16 SAE SCREW-HEX WSHR HD TAPTT5/16-18X0.750BLK BOLT, 5/16-18 X 1-1/8 GD5 NUT, 5/16-24 HEX, LH NUT, 5/16-24 HEX BOLT, 1/4-20 X 5/8 GD5 YZ Footnotes 15
Hydraulic Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5300919 16
Hydraulic Group REF NO PART NO. QTY. 1 5101024 1 2 5101025 1 3 5101138 1 4 5101139 1 5 5047408 2 6 5025011X22 6 7 5025392 8 8 5025155 8 9 5025010X6 3 10 5025391 2 11 5025211 2 12 5050857X2P5 2 13 5025474 4 14 5025011X18 2 15 5025154 2 16 5100473 2 DESCRIPTION TRANSMISSION, RH, HYDRO-GEAR (Not Shown) TRANSMISSION, LH, HYDRO-GEAR ROD, DUMP CONTROL, LH ROD, DUMP CONTROL, RH (Not Shown) SPACER,.39 X.75 X.50 BOLT, 5/16-18 X 2-3/4, GD 5, YZ NUT, 5/16-18 HEX NYLOCK FLANGE WASHER, 5/16 SAE BOLT, 1/4-20 X 3/4 GD5 YZ NUT, 1/4-20 HEX NYLOCK FLANGE PIN, HAIR,.0585 X 1-1/8, 1/4 EYE, YZ HOSE, 1/2" PUSH-ON, 2.5" LONG CLAMP, HOSE,.75 FREE DIA. BOLT, 5/16-18 X 2-1/4" GD5 YZ WASHER, 1/4 SAE TANK, OIL, 350ML WITH CAP Footnotes 17
Seat Mount & Floor Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302649 18
Seat Mount & Floor Group REF NO PART NO. QTY. DESCRIPTION 1 5025155 3 WASHER, 5/16 SAE 2 5025011X8 4 BOLT, 5/16-18 X 1 GD5 YZ 3 5025392 10 NUT, 5/16-18 HEX NYLOCK FLANGE 4 5025127 1 NUT, 5/16-18 HEX SERRATED FLANGE (SMALL) 5 5025145X10 1 BOLT, 5/16-18 X 1-1/4, CARRIAGE YZ 6 5021878 1 SPACER,.25 X.37 X.25 7 5025144X6 1 BOLT, 1/4-20 X 3/4", CARRIAGE 8 5025391 1 NUT, 1/4-20 HEX NYLOCK FLANGE 9 5044617 2 WASHER,.34 X 1.25 X 10 GA 10 5025394 10 NUT, 3/8-16 HEX NYLOCK FLANGE 11 5403706C 1 PLATE, SIO FLOOR MOUNT 12 5100909 1 SEAT, NO ARM REST 13 5403015A 1 SEAT PLATE, STOP - BLK 14 7078299 2 SPRING, SEAT SUPPORT 15 5402859C 1 MOUNT, SEAT STOP 16 5407829C 1 PLATE, FOOT REST 17 5407857C 1 WELD, PLATE, SEAT MOUNT 18 5023263 1 VINYL CLAMP 19 5101374 1 SAFETY WALK, FLOOR REST, 16.00 X 6.00 20 5101333 1 SAFETY WALK, FLOOR PLATE, S50X, 10X17.13 21 5101004 1 SAFETY WALK, 4.00 X 7.50 22 5025013X8 4 BOLT, 3/8-16 X 1 GD5 YZ 23 5025156 6 WASHER, 3/8 SAE 24 1686907 1 ARM REST (SET OF TWO) (SV) 25 5100636 1 SPRING, SEAT ADJUSTMENT (SV) 26 5061599X1 1 KIT, SEAT RAILS (COMPLETE)(SV) 27 35097 4 MNT, VBRTN, 30 DURO 28 197546 2 MNT, VBRTN, RBBR 29 5025481 4 BOLT, 3/8-16 X 5/8, SERRATED UNDER HEAD 30 5025480 4 WASHER, 3/8" ID, INTERNAL TOOTH 31 5025011X6 1 BOLT, 5/16-18 X 3/4 GD5 32 5103071 2 FLANGED BUSHING, 3/8 ID X.63 OD X.55 LG 33 5025013X12 2 BOLT, 3/8-16 X 1-1/2 GD5 YZ Footnotes 19
Fuel Tank & Mount Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302650 20
Fuel Tank & Mount Group REF NO PART NO. QTY. DESCRIPTION 1 5048752 1 TANK, FENDER, CONZ, RH 2 5048909C 2 PLATE,FUEL TANK BADGE 3 5025011X6 20 BOLT, 5/16-18 X 3/4 GD5 4 5025155 20 WASHER, 5/16 SAE 5 5025170 8 WASHER, 5/16 LOCK YZ 6a 5103005 1 FUEL CAP, 3-1/2", MANAGED VENT OUT, 12" (S/N: 2014923026 & ABOVE) 6b 5101651 1 CAP, GASOLINE, VENTED (S/N: 2014923025 & BELOW) 7 5025386 6 SCREW, #10-24 X 3/8 ALLEN BHBZ 8 5025392 8 NUT, 5/16-18 HEX NYLOCK FLANGE 9 5020835 2 CLAMP, HOSE, EXTERNAL, 1/2 - RED 10a 5103167 1 TANK,FUEL, LH (S/N: 2014923026 & ABOVE) 10b 5102544 1 TANK,FUEL, LH (S/N: 2014923025 & BELOW) 11 5050831X20 1 HOSE, 1/4" FUEL, 20.00" 12 5406626A 2 MOUNT, FUEL TANK, REAR - ORN 13 5406627A 1 MOUNT, FUEL TANK, FRONT - BLK 14 5406628A 1 MOUNT, FENDER, FRONT - BLK (Not illustrated) 15 5101144 1 PICKUP TUBE ASM, FUEL TANK (SV) 16 5600050 1 KIT, BUSHING FUEL (SV) 17 5023197SM 1 FUEL GAUGE (SV) 18 5022917X1SM 1 GROMMET (SV) Footnotes 21
Parking Brake Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302654 22
Parking Brake Group REF NO PART NO. QTY. 1 5025010X5 4 2 5025391 4 3 5025013X18 2 4 5025394 2 5 5025213X8 1 6 5025211 1 7 5020047 5 8 5021102 2 9 5010213 1 10 5025337 2 11 5025045 2 12 5023216 1 13 5101058 2 14 5101123 2 15 5044992 2 16 5402914A 1 17 5023323 1 18 5101116 1 19 5406620A 1 20 5025510 1 DESCRIPTION BOLT, 1/4-20 X 5/8 GD5 YZ NUT, 1/4-20 HEX NYLOCK FLANGE BOLT, 3/8-16 X 2-1/4 GD5 YZ NUT, 3/8-16 HEX NYLOCK FLANGE PIN, CLEVIS, 5/16 X 1 YZ PIN, HAIR,.0585 X 1-1/8, 1/4 EYE, YZ COLLAR, 5/16" SET SPRING, COMPRESSION SPRING; CLUTCH HANDLE WASHER, 5/16 USS NUT, 5/16-24 HEX NYLON LOCK NUT, 5/16-24 JAM ROD, BRAKE CTRL, LOWER - CONZ BEARING, 1/2" FLANGED SPACER,.38 X.50 X 1.56 WELD, BRAKE SHAFT - BLK CLEVIS, 5/16-24, STEEL ROD, PULLER ROD WELD, BRAKE SHAFT, HANDLE - BLK GRIP, FOAM, 1/4" X 1 Footnotes 23
Deck Lift Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302646 24
Deck Lift Group REF NO PART NO. QTY. 1 1715834 1 2 5023174 4 3 5025203X6 4 4 5100634 4 5 5101117 2 6 5407892C 1 7 5402956A 1 8 5402957A 1 9 5407830A 1 10 5025328X12 4 11 5025394 7 12 5025443 2 13 5100548 2 14 5025089 4 15 5025396 1 16 5025013X10 2 17 5403925A 2 18 5025013X22 4 19 5025017X34 1 20 5102545 1 21 5061569A 1 22 5406623C 1 23 5103021 1 24 5020870 4 25 5025510 1 26 5025440 8 27 5025165 1 28 5025013X14 1 29 5044960 1 30 5025018X14 4 31 5025098 4 32 5041930 1 DESCRIPTION RUBBER, FOOT PEDAL CLEVIS, 1/2-20, STEEL PIN, COTTER, 1/8 X 3/4 PIVOT BLOCK, PLASTIC ROD, DECK LIFT, SNAPPER PRO WELD, FRONT DECK PIVOT WELD, PIVOT DECK LIFT, RH - BLK WELD, PIVOT, DECK LIFT, LH - BLK (Not Shown) WELD, PULLER BAR - BLK PIN, CLEVIS, 1/2 X 1 1/2, YZP NUT, 3/8-16 HEX NYLOCK FLANGE BOLT, 3/8-16 X 3/4, GD5, YZ WITH PATCH WASHER,.390 X 1.50 X.109, YZ NUT, 1/2-20 HEX JAM NUT, 1/2-13 HEX NYLOCK FLANGE BOLT, 3/8-16 X 1-1/4 GD5 PLATE, PIVOT BLOCK SUPPORT - BLK BOLT, 3/8-16 X 2-3/4 GD5 YZ BOLT, 1/2-13 X 4-1/4 GD5 YZ SPACER,.53 X.73 X 3.38, CZ PEDAL, FOOT - BLK PLATE, DECK TRANSPORT LEVER HITCH PIN, 3/8 X 2-1/2, COTTERLESS, CZ INSERT, BEARING GRIP, FOAM, 1/4 X 1 WASHER, 1/2 GD9 YZ WASHER-3/8 FENDER BOLT, 3/8-16 X 1-3/4 GD5 SPACER,.39 X 1.00 X.25 BOLT, 1/2-20 X 1-3/4 GD8 YZ NUT, 1/2-20 HEX NYLON LOCK SPACER,.38 X.50 X.27, CZ Footnotes 25
Wheel & Tire Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302642 26
Wheel & Tire Group REF NO PART NO. QTY. 1 5101418 2 2 5022433X1 2 3 5101418X2 2 4 2172353 2 5 5022579 4 6 5101418X1 4 7 5045996 2 8 5025017X56 2 9 5025396 2 10 5103019 2 11 5101345X1 2 12 5102329X2 2 13 5020601 8 14 5025158 2 DESCRIPTION WHEEL, CASTER, 11 X 4.0-5 SILVER BEAD LO TIRE, 11 X 4.0-5 WHEEL ASSEMBLY, 11 X 4.0-5 TIRE CMP (SV) VALVE STEM & CAP ASSEMBLY (SV) BEARING, ROLLER (SV) BEARING, CASTER WHEEL, 11 X 4.0-5 BEAD LOCK (SV) CASTER AXLE DDSH BOLT, 1/2-13 X 7 GD8 YZ NUT, 1/2-13 HEX NYLOCK FLANGE TIRE ASM, REAR, 20 X 10.0 X 10 TIRE, REAR, 20 X 10.0 X 10 WHEEL, 10X7.00 4/4 SOLID F237 2.625 OS (SV) NUT, 1/2-20, FOR WHEEL BOLT SILVER WASHER, 1/2 SAE Footnotes 27
Decal Group - Brand & Model NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302667 28
Decal Group - Brand & Model REF NO PART NO. QTY. DESCRIPTION 1 5022811 1 DECAL, 48 2 1722551 4 DECAL-SIMPLICITY SILVER & BLUE W/ICON 3 5023228 1 DECAL-LH STRIPE CONSUMER Z 4 5023229 1 DECAL-RH STRIPE CONSUMER Z Footnotes 29
Decal Group - Safety & Operation NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302709A 30
Decal Group - Safety & Operation REF NO PART NO. QTY. DESCRIPTION 1 5103595 1 DECAL, MAIN SAFETY 2 5103184 1 DECAL, WARNING, HAND IN BELT, ENG ONLY 3 7101665 2 DECAL, DANGER DO NOT OPERATE W/O DEFLECT 4 5100957 1 DECAL, HYDRAULIC OIL, SAE 20W50 5 5100280 1 DECAL, THROTTLE CONTROL 6 5048970 1 DECAL, IGNITION SWITCH 7 5046503 1 DECAL, FUSE LOCATION 8 5103196 1 DECAL, BELT & BLADE, S50X icd 9 5101991 2 DECAL, TRANSAXLE RELEASE 10 5101315 1 DECAL, CUT HEIGHT, S50X Footnotes 31
Evap Canister Group NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302738 32
Evap Canister Group REF NO PART NO. QTY. 1 313036 1 2 5408222A 1 3 -- 1 4 7700552X29P5 1 5 7700552X36P5 1 6 5103055 2 7 5025391 2 8 5025392 4 9 5025155 4 10 5025011X8 4 11 5025299X6 2 12 7104638 2 13 209043 2 DESCRIPTION CNSTR, CARB, 6 GAL BRACKET, CARB CANISTER, S50X - BLK DECAL, EPA CERT, ZTRS (Located on frame near Serial Tag) HOSE, VAPOR, 5MM ID, 29.50 LG HOSE, VAPOR, 5MM ID, 36.50 LG CLAMP, 3" ID, CUSHIONED, STAINLESS NUT, 1/4-20 HEX NYLOCK FLANGE NUT, 5/16-18 HEX NYLOCK FLANGE WASHER, 5/16 SAE BOLT, 5/16-18 X 1 GD5 YZ SCREW, 1/4-20 X 3/4 ALLEN BH REMOTE VENT ASSEMBLY, NO VALVE (SV) GROMMET (SV) Footnotes 33
Spindle Service Parts NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 4235spn0 34
Spindle Service Parts REF NO PART NO. QTY. 1 5061095SM 3 2 5023329SM 3 3 5025405SM 3 4 5025406SM 3 5 5049793SM 6 6 5023330SM 6 7 5023296SM 3 8 5061097SM 3 9 5061099SM 3 10 5061098SM 3 DESCRIPTION SPINDLE ASSEMBLY, Complete GREASE FITTING NUT, 3/4-16 Hex WASHER, 3/4" Belleville TRASH SHIELD BEARING RELIEF VALVE SPINDLE HOUSING SPACER, 1.00 x 1.25 x 1.75 SPINDLE SHAFT Footnotes 35
48" Mower Deck - Hanger Chains NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5300925 36
48" Mower Deck - Hanger Chains REF NO PART NO. QTY. DESCRIPTION 1 5047503 2 HANGER, FRONT DECK - 2 LINKS 2 5050878X3 2 CHAIN, 5/16" GD30, 3 LINKS 3 5025158 2 WASHER, 1/2 SAE 4 5025038 2 NUT, 1/2-13 HEX 5 5025396 2 NUT, 1/2-13 HEX NYLOCK FLANGE 6 5025156 12 WASHER 3/8 SAE 7 5025128 4 NUT, 3/8-16 HEX SERRATED FLANGE 8 5025084 4 NUT, 3/8-16 HEX JAM 9 5025013X14 6 BOLT, 3/8-16 X 1-3/4 GD5 10 5025394 4 NUT, 3/8-16 HEX NYLOCK FLANGE Footnotes 37
48" Mower Deck - Housing, Covers, Spindles & Blades NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302651 38
48" Mower Deck - Housing, Covers, Spindles & Blades REF NO PART NO. QTY. DESCRIPTION 1 5403532C 1 GUARD, 48" MOWER DECK, LH 2 5403531C 1 GUARD, 48" MOWER DECK, RH 3 5022308 6 BODY CLIP 5/16-18 X 1/2" DEEP 4 5025155 12 WASHER, 5/16 SAE 5 5025011X6 12 BOLT, 5/16-18 X 3/4 GD5 6 5025159 3 WASHER, 5/8 USS 7 5025320X14 3 BOLT, 5/8-11 X 1-3/4 GR8 8 5101004 1 SAFETY WALK, 4.00 X 7.50 9 5101986S 3 BLADE, 16.25 X.25 X 2.5, 1 X 3.5 (SET OF 3) 10 5023156 12 BOLT, 5/16-18 X 1-1/4" FLANGE 11 5025392 20 NUT, 5/16-18 HEX NYLOCK FLANGE 12 5061095 3 ASSM, SPINDLE, LOW PROFILE 13 5600518 1 DECK SHELL W/ DECALS 48" DECK, ZT3500 14 5600089 1 KIT, DISCHARGE CHUTE 15 5401271A 1 WELD, DISCHARGE BAFFLE, 48" - BLK 16 5042555 1 ROD, BRAKE LINKAGE 17 5025045 2 NUT 5/16-24 HEX NYLON LOCK 18 5402404 1 CHUTE, RUBBER, BENT 19 5025013X12 2 BOLT, 3/8-16 X 1-1/2 GD5 YZ 20 5402362A 1 SUPPORT, DISCHARGE CHUTE, 48/52 - BLK 21 5402361C 1 WELD, CHUTE MOUNT 22 5025394 2 NUT, 3/8-16 HEX NYLOCK FLANGE 23 5025145X6 2 BOLT, 5/16"-18 CARRIAGE, 3/4" 24 5025145X8 1 BOLT, 5/16"-18 CARRIAGE, 1" Footnotes 39
48" Mower Deck - Pulleys, Belts & Idler Arm NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5302655 40
48" Mower Deck - Pulleys, Belts & Idler Arm REF NO PART NO. QTY. DESCRIPTION 1 5025429 1 EYE BOLT, 3/8-16 X 4, 2 1/8 OF THREAD 2 5023175 3 PULLEY, 5.72., 48 DECK 3 5025406 3 WASHER, 3/4 BELLEVILLE 4 5025405 3 NUT, 3/4-16 HEX 5 5047142 2 SPACER,.52 X 1.25 X.70 6 5600184 2 KIT, PULLEY & SHIELD (Includes Part #'s 5021976 & 5101103) 7 5045106A 1 WELD, IDLER ARM - BLK - 5401621A (SV) (Includes Ref. #'s 8 & 18) 8 5021541 2 BUSHING, FLANGE 9 5044673 1 SPACER,.52 X 1.00 X.88 10 5100529 1 * PULLEY, IDLER, 6.75 OD X 1.62 FACE 11 5025017X40 1 BOLT, 1/2-13 X 5 GD5 YZ 12 5045022 1 SPACER,.52 X 1.00 X 3.50 13 5025150 2 WASHER, 1/2 USS 14 5050407X10 3 KEY, 1/4 SQ. X 1-1/4 15 5020095 1 GREASE FITTING, 1/4-28 STRAIGHT 16 5025017X28 1 BOLT, 1/2-13 X 3-1/2 GD5 17 5045023 1 SPACER,.52 X 1.00 X.44 18 5025017X22 1 BOLT, 1/2-13 X 2-3/4 GD5 19 5044913 1 WASHER,.53 X 1.50 X.25 20 5025396 5 NUT, 1/2-13 HEX NYLOCK FLANGE 21 5025017X20 1 BOLT, 1/2-13 X 2-1/2 GD5 22 5101103 3 SHIELD, PULLEY BEARING 23 5101301 1 BELT, BP-SEC, 146.00EL, LG ARAMID, WRPD 24 5404088A 1 BRACKET, EYEBOLT MOUNT - BLK 25 5025017X12 1 BOLT, 1/2-13 X 1-1/2 GD5 YZ 26 5025032 2 NUT, 5/16-18 HEX 27 5023340 1 SPRING-EXT, 1.04 ODX10.535LGX.148WR, BLK Footnotes * Use Bolt 5025017X28 & Spacer 5044673. 41
48" Mower Deck - Rollers NOTE: Unless noted otherwise, use the standard hardware torque specification chart. 5301204 42
48" Mower Deck - Rollers REF NO PART NO. QTY. 1 5025013X28 1 2 5025156 1 3 5047027 1 4 5041931 2 5 1714760 1 6 5025394 1 DESCRIPTION BOLT, 3/8-16 X 3-1/2 GD5 YZ WASHER, 3/8 SAE SPACER,.51 X.75 X.56 SPACER,.38 X.50 X 1.25 WHEEL- 2.00 WIDE 3.88 DIA 0.531ID POLY NUT, 3/8-16 HEX NYLOCK FLANGE Footnotes 43
Hardware Identification & Torque Specifications Torque Specification Chart FOR STANDARD METRIC MACHINE HARDWARE (Tolerance ± 20%) Torque Specification Chart FOR STANDARD MACHINE HARDWARE (Tolerance ± 20%) Property Class 5.6 Class 5.6 8.8 10.9 12.9 Class 8.8 Class 10.9 Class 12.9 Size Of in/lbs in/lbs in/lbs in/lbs Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. M3 5.88.56 13.44 1.28 19.2 1.80 22.92 2.15 M4 13.44 1.28 30.72 2.90 43.44 4.10 52.56 4.95 M5 26.4 2.50 60.96 5.75 5.97 8.10 7.15 9.7 M6 44.64 4.3 7.3 9.9 10.3 14 12.1 16.5 M7 5.2 7.1 12.1 16.5 16.9 23 19.9 27 M8 7.7 10.5 17.7 24 25 34 29 40 M10 15 21 35 48 50 67 59 81 M12 26 36 61 83 86.2 117 103 140 M14 42 58 101 132 136 185 162 220 M16 64 88 147 200 210 285 250 340 M18 89 121 202 275 287 390 346 470 M20 126 171 290 390 405 550 486 660 M22 169 230 390 530 559 745 656 890 M24 217 295 497 375 708 960 840 1140 M27 320 435 733 995 1032 1400 1239 1680 M30 435 590 995 1350 1401 1900 1681 2280 M33 590 800 1349 1830 1902 2580 2278 3090 M36 759 1030 1740 2360 2441 3310 2935 3980 M39 988 1340 2249 3050 3163 4290 3798 5150 The guides and ruler furnished below are designed to help you select the appropriate hardware. 0 10 20 0 Inside Diameter (in) Nut, 1/2-16 1/4 1/2 3/4 1 30 40 1/4 1/2 3/4 50 60 Thread Diameter (mm) Body Diameter 2 Screw, 1/2-16 x 2 1/4 1/2 3/4 70 80 3 Body Diameter Nut, M8 Screw, M8-1.25 x 25 Thread Diameter (mm) Threads per inch Body Length Distance between threads (mm) Threads per inch 90 100 1/4 1/2 3/4 Body Length (mm) Body Length (in) 4 Hardware Grade No Marks SAE Grade 2 SAE Grade 5 SAE Grade 8 Size Of in/lbs in/lbs in/lbs Hardware ft/lbs Nm. ft/lbs Nm. ft/lbs Nm. 8-32 19 2.1 30 3.4 41 4.6 8-36 20 2.3 31 3.5 43 4.9 10-24 27 3.1 43 4.9 60 6.8 10-32 31 3.5 49 5.5 68 7.7 1/4-20 66 7.6 8 10.9 12 16.3 1/4-28 76 8.6 10 13.6 14 19.0 5/16-18 11 15.0 17 23.1 25 34.0 5/16-24 12 16.3 19 25.8 29 34.0 3/8-16 20 27.2 30 40.8 45 61.2 3/8-24 23 31.3 35 47.6 50 68.0 7/16-14 30 40.8 50 68.0 70 95.2 7/16-20 35 47.6 55 74.8 80 108.8 1/2-13 50 68.0 75 102.0 110 149.6 1/2-20 55 74.8 90 122.4 120 163.2 9/16-12 65 88.4 110 149.6 150 204.0 9/16-18 75 102.0 120 163.2 170 231.2 5/8-11 90 122.4 150 204.0 220 299.2 5/8-18 100 136 180 244.8 240 326.4 3/4-10 160 217.6 260 353.6 386 525.0 3/4-16 180 244.8 300 408.0 420 571.2 7/8-9 140 190.4 400 544.0 600 816.0 7/8-14 155 210.8 440 598.4 660 897.6 1-8 220 299.2 580 788.8 900 1,244.0 1-12 240 326.4 640 870.4 1,000 1,360.0 NOTES 1. These torque values are to be used for all hardware excluding: locknuts, self-tapping screws, thread forming screws, sheet metal screws and socket head setscrews. 2. Recommended seating torque values for locknuts: a. for prevailing torque locknuts - use 65% of grade 5 torques. b. for flange whizlock nuts and screws - use 135% of grade 5 torques. 3. Unless otherwise noted on assembly drawings, all torque values must meet this specification. Common Hardware Types Hex Head Capscrew Washer Standard Hardware Sizing When a washer or nut is identified as 1/2 (M8), this is the Nominal size, meaning the inside diameter is 1/2 inch (8mm metric thread diameter); if a second number is present it represents the threads per inch (distance between threads). Carriage Bolt Wrench & Fastener Size Guide Lockwasher Hex Nut When bolt or capscrew is identified as 1/2-16 x 2 (M8-1.25 x 50 ), this means the Nominal size, or body diameter is 1/2 inch (8mm metric thread diameter), the second number,16, represents the threads per inch, (1.25 thread diameter). The final number is the body length of the bolt or screw, 2 inches (50mm). 1/4 Bolt or Nut Wrench 7/16 M6 Bolt or Nut Wrench 10mm 5/16 Bolt or Nut Wrench 1/2 M8 Bolt or Nut Wrench 13mm 3/8 Bolt or Nut Wrench 9/16 M10 Bolt or Nut Wrench 17mm 7/16 Bolt or Nut Wrench (Bolt) 5/8 Wrench (Nut) 11/16 M12 Bolt or Nut Wrench 19mm 1/2 Bolt or Nut Wrench 3/4 M14 Bolt or Nut Wrench 22 mm
IT IS THE POLICY OF BRIGGS & STRATTON CORP. TO IMPROVE ITS PRODUCTS WHENEVER IT IS POSSIBLE AND PRACTICAL TO DO SO. WE RESERVE THE RIGHT TO MAKE CHANGES OR ADD IMPROVEMENTS AT ANY TIME WITHOUT INCURRING ANY OBLIGATION TO MAKE SUCH CHANGES ON PRODUCTS. Briggs & Stratton Yard Power Products Group 3515 N. 124 Street / PO Box 702 Wauwatosa, WI 53222 USA www.simplicitymfg.com