Page 1: ...AZOO YHR SERIES COMMERCIAL MOWER SAFETYSUMMARY OWNER S MANUAL r it YHR SERIES MODELS INCLUDE EQUIPMENTDESCRIPTIONAND DATA YHR 3 YHRLW20 YHRLK2 i 0 OPERATINGPROCEDURES YHRK20 J 8 YHRLK18 t I YHRK18 Tan...
Page 2: ...I basic operator maintenance i e inspections lubrications servicing troubleshooting and simple remove and replace functions that do not require 1 specialtools skillsor facilities to correctly order p...
Page 3: ...in use j 1 READANDTHOROUGHLY UNDERSTAND THISMANUAL andalldecalson t unit BEFORE attempting to operate 2 NEVERallowchildrento operatethe mower NEVERallowanyadultto operate 1 1 f the mowerwithoutproper...
Page 4: ...mowing around fixed objects NEVER deliberately run over foreign objects as damage to mower and or injury to others may result 14 NEVER MOW on a surface angle greater than 15 degrees ALWAYS MOW ACROSS...
Page 5: ...Keep your cutting section in i good working condition by performing preventive maintenance as outlined in this manual J 27 NEVER add fuel to a running engine ALWAYS WAIT at least five 5 minutes before...
Page 6: ...k 2 Cutting deck Performs mowing function I 3 Hood Provides enclosure for engine and drive train components 4 Hydrostatic Transmits motive force to transmission transmission transaxle to propel tracto...
Page 7: ...datafor the following YAZOO models J YHRLK23 YHRLK20 i YHRLW20 YHRK20 f I YHRLK18 YHRK18 X These above listed models may be combined with any of available PSR Series J 48 60 76 inch 3 blade cutting de...
Page 8: ...nd 15 amp r alternator CUTTING SECTION l 48 60 76 inches wide withthree blades Manually controlled andadjustable I from 1 1 2 3 inches Poweredfrom PTOgearboxon tractorto cuttingdeck Deadhead pulley po...
Page 9: ...23 US pints liters 8 0 3 8 YHRLW20 US pints liters 7 3 4 YHRLK20 YHRK20 US pints liters 3 5 1 7 YHRLK18 YHRK18 US pints liters 3 5 1 7 f Lubricating oil SAE30 weight oil API service SG SF CC CD for tr...
Page 10: ...rent to ignition r system as follows t STOP opencircuit f electrical system off 1 RUN current to i f electrical system I i START ismomentary 1 contact switch to engage r t i starter motor 1 2 Ammeter...
Page 11: ...ol to ensure that ENGINE CANNOT BE STARTED AND MOWER CONTINUE TO RUN IF operator is not seated in driver s seat cutting section blade control lever is engaged transmission is in gear 13 Cutting Sectio...
Page 12: ...ing cutting sections with corresponding Installationkit 1 PSR 48 KIT EITHER PIN 1105 059OR PIN 1105 061 ti j PSR 60 KIT EITHER PIN 1105 058 OR PIN 1105 060 1 PSR 76 KIT EITHER PIN 1105 062 OR PIN 1105...
Page 13: ...ack ets 10 and 11 with bolt 12 washer 13 and nut 14 GP 5 jj 1 fl JiJ 8 d 9 c I i I I NOTE Do not force halves of PTO shaft together Forcing them together indicates that they are not properly aligned a...
Page 14: ...t f 7 Installspringextenders 1 withbolts 2 andnuts 3 to cuttingsectionlift f bracket 4 Installsprings 5 J 1 f i I i I 1 f 1 I A 1 8 Installhydrauliccylinder 1 asfollows I f t I I Securecuttingsection...
Page 15: ...lift bracket 2 with clevis pin 11 hairpin clip 12 and spacer 13 9 Tighten nut 1 on idler tension rod to adjust tension of drive belt Go to STEP 13 I i i 10 Installdeck lift cable 1 around cable rolle...
Page 16: ...PROCEDURES I e b1 Install springs 1 to springextenders 2 andto cuttingsectionliftbracket I I J I I i t 12 Tightennut 1 on idlertensionrodto adjusttensionof drivebelt D II O J 15 YAZOO YHR SERIES MOWE...
Page 17: ...o adjust the cutting height of I the cutting deck THIS IS ONLY TO BE DONE WHILE THE ENGINE IS OFF ie i 1 Disassembleparts 1 through 13 on front caster wheels 14 ij 2 Disassemble parts 15 through 25 on...
Page 18: ...atthe rearcarriagewheels 26 willchangeheight 4 Re assemble parts 1 through 13 andadjustbothfrontcasterwheels 14 to desiredheightusingnecessarycombinationof spacers 4 5 and 6 Measure heightandrecordfor...
Page 19: ...TING SECTION WHEN ENGINE IS i RUNNING it WARNING THE FOLLOWING PM TASKS ARE TO BE I COMPLETED WITH THE ENGINE OFF UNLESS I OTHERWISE DIRECTED EACH OF THE TASKS i SHOULD BE PERFORMED IN SEQUENCE I rlil...
Page 20: ...use and any corrective action If the problem is not listed or is still not resolved see your YAZOO dealer immediately PERFORMBEFOREANDAFTEREACHUSE 1 Checkengineaircoolingfins 1 if dirty clean i TYPICA...
Page 21: ...re 3 b a Removewing nut 1 and cover 2 Removespacer 3 and element cover 4 Removeelement 5 with precleaner 6 Remove precleaner 6 from element 5 iJ If element 5 is contaminated but otherwise serviceable...
Page 22: ...ecessary I Install air cleaner element 5 with precleaner 6 and secure with element cover 4 and spacer 3 Install cover 2 and secure with wing nut 1 0 I C 0 I 4 I If c f I t I t I b c Removewing bolt 1...
Page 23: ...t 3 and secure with cover 2 and wing bolt 1 0 B D PERFORM BEFORE EACH USE 1 1 4 Change hydraulic oil and filter 1 as follows t Ensure that engine is not running and that hydraulic system is bled I ii...
Page 24: ...0Woil APIserviceSG SF CC CD Runengine atidleandcheckforleaks PERFORM BEFORE EACH USE S Check engine crankcase oil and service as follows I F t Op lIn p llin Aon Aln o L C I KOHLER I I WISCONSIN I Remo...
Page 25: ...Place container under area of oil filter 2 Kohler models only Remove old oil 1 1 f lt 2 I er I I I 11 CAUTION DO NOT OVERTIGHTENOIL FILTER I I 1 1 Moisten rubber seal of new oil filter with oil and in...
Page 26: ...yaresecure Tighten asneces c sary PERFORM AS NEEDED WARNING WEAR SAFETY GOGGLES FACE SHIELD AND GLOVES IF YOUR EYESOR SKIN SHOULD i COMEINTOCONTACTWITHBATTERYELECTRO A LYTE FLOOD AREA WITH WATER AND G...
Page 27: ...n 1 and look for restrictions or plugging by grass t t dirt or debris If dirty clean and install i I i 11 I WISCONSIN jlSCONSIN r ll I Ti f i 11 PERFORM BEFORE EACH USE rf 1 10 Check parking brake 1 t...
Page 28: ...OJ PERFORM BEFORE EACH USE DANGER HYDRAULIC FLUID OR FUEL ESCAPING UNDER PRESSURE CAN HAVE SUFFICIENT FORCE TO PENETRATE SKIN AND DO SERIOUS DAMAGE IF FLUID IS INJECTED INTO SKIN IT MUST BE h SURGICA...
Page 29: ...MOVED WITHIN A FEW HOURS BY A PHYSICIAN FAMILIAR WITH THIS TYPE OF INJURY OR GANGRENE MAY RESULT DO NOT r PLACE BODY OR HANDS AROUND FITTINGS PIN t HOLES OR NOZZLES THAT EJECT FLUID UNDER JI HIGH PRES...
Page 30: ...eck fluid levelof hydrostatic transaxle andfill to hole 1 with recommended oil 1 PERFORM EVERY50 HOURS I f I 17 Lubricate pillow block bearing grease fittings 1 each bearing with com mercial grade axl...
Page 31: ...E On all models exceot YHRLW20 because Wis t consin engine has a fuel filter bowl in lieu of a dis f i I posable fuel filter element I U I 1111 P I i I II 11 1 J 19 Replacefuel filter element 1 OR cle...
Page 32: ...Y 50 HOURS c 20 Lubricate linkages of direction control pedal 1 with SAE 30 weight oil i J I I i I j PERFORM EVERY 50 HOURS 21 Lubricate linkage of parking brake 1 with SAE30 weight oil I I i c 31 YAZ...
Page 33: ...opening until lubricant comes out ofthe front i plug 2 Stop and replace both plugs f l i U t if i 1 OJ I c f 1 PERFORM EVERY 50 HOURS c t 23 Lubricate throttle control 1 with SAE30 weight oil I I 1 1...
Page 34: ...HOURS l i 24 Lubricate yoke grease fitting 1 with commercial grade axle grease j 1 1f PERFORM EVERY 50 HOURS 25 Lubricate blade engaging bracket 1 with commercial grade axle grease I i i i I i JI 33 Y...
Page 35: ...atarecoveredindetailhere Pleaseread underst and andfollo t II theseprocedures carefully to ensure properandsafeoperation ofyourunit f II illl Failure to dosomayresultinserious damage to engine ordrive...
Page 36: ...eng i ine to warm up before applying a load attempt ing to use any hydraulic power or attempting to i accelerate engine speed iI CAUTION IN ORDERTO START ENGINE THE FOL U LOWING SEQUENCE OF EVENTS MU...
Page 37: ...I Iii j i Ii 1 1 1 INmATE J I i I SAFE I I I ii STOP Itj II 1 c I i f I I il I 111 I j f i 1 II SAFE j I I f c i il I START il f Jt r ii L r i t DENOTES CORRECfOR GO PAnI I FORSAFBSTART CONTINUE OPERA...
Page 38: ...IN A FEW HOURS BY A PHYSICIAN FAMILIAR WITH THIS TYPE OF h INJURY OR GANGRENE MAY RESULT DO NOT PLACE BODY OR HANDS AROUND FITTINGS PIN HOLES OR NOZZLES THAT EJECT FLUID UNDER HIGH PRESSURE PLACE A PI...
Page 39: ...luid from the hydraulic motor in the hydrostatic drive to warm up before the fluid returns to the inlet side of the hydraulic pump in the hydrostatic drive NOTE The hydrostatic transmission has infini...
Page 40: ...rd lowers deck pushing cutting deck control lever 1 all the way forward locks deck into its i floating position I 4 Blade engagement is as follows 8 move blade control lever 1 forward l to engage cut...
Page 41: ...eutral position and pressin brake pedal 2 ENGINE SHUT DOWN t t 1 Disenga cutting blades by pulling blade contr leve 1 rear I I i i 8 1 j Iii t Ii Ii i i r l t t ii ii 1 I c J f f I t f c j r i I I c 2...
Page 42: ...ow relieved 5 i i II I I i it I l I TOWING PROCEDURES EMERGENCY USE ONLY 1 Bring machine to stop and shut down engine II CAUTION TOW VALVE KNOB IS USED TO ALLOW I A UNIT TO BE MANUALLY MOVED IN CASE O...
Page 43: ...KEEP FUEL AWAY FROM SPARKS OR A OPEN FLAME EMPTY FUEL TANK CONTAINS 1 if i FLAMMABLE VAPORS AND EXPLOSION HAZARD G I lii t11 EXISTS I fit ll lip I I i Ii 3 D f It k if rain ue an 1 I i I t I I 1 1 1 4...
Page 44: ...nto three columns The first column MALFUNCTION is t the listed trouble The second column POSSIBLE CAUSE lists the most likely to least likely cause of the malfunction in descending order The last colu...
Page 45: ...ethrottle turn engine im I arts then I e Water in fuel Contact your YAZOO dealer 1 4 Engine starts a Fuelfilter element Replace fI and almost is clogged immediately t stops b Water in fuel Contact you...
Page 46: ...king brake left Release consumption engaged l b Servicebrakes Contact your YAZOO dealer f dragging c Tire pressure Adjust tire pressure i I too low to prescribed pressure 8 Excessive a Air cleaner clo...
Page 47: ...hydraulic fluid components dealer leakage 12 Engine is a Tow valve knob is Push tow valve knob back into running tractor activated transmission normal position transmission will not move in is in de c...
Page 48: ...LIGHT BLUE ORANGE YHRLW20 WIRING DIAGRAM KEY SWITCH I t TO ENGINE C STARTER KILL WIRE j SOLENOID 1 1 I YELLOW I BROWN MODULE ORANGE CONNECTOR ORANGE Ii BLACK IIII GREEN Ji BLUE i BLACK BLACK BLADE YH...
Page 49: ...c TROUBLESHOOTING PROCEDURES 6 1 1r I 1 I THIS PAGE lEFT BLANK INTENTIONAllY It I 1 1 1 11 J III I i II I 1 c 1 i 1 11 oc t 1 I 1 I i I I II ii l i YAZOO YHR SERIES MOWERS 48 i OWNER S MANUAL i...
Page 50: ...ll be listed as 1 21 under the KEY column along with the part number name and quantity ies of that item used in that application EXPLANATION OF USED ON CODES Differencesbetween the models in this illu...
Page 51: ...1 17A 0301 114 CABLE CHOKE A 1 1 18 1901 229 SCREW 10 24X1 12 A 1 I 1 19 PIO ITEM 1 17 WASHER LOCK 1 I l t 1 20 PI 0 ITEM 1 17 NUT 1 1 21 0902 001 INCLINOMETER 1 1 22 P OITEM1 15 NUT 1 1 23 Pia ITEM1...
Page 52: ...53 2301 001 WASHER LOCK 3 16 2 1 54 1401 010 NUT 1 4 USS 1 I I It 1 55 2301 005 WASHER STAR LOCK 1 I c 1 56 1401 010 NUT 1 4 USS 3 1 57 2301 005 WASHER STAR LOCK 3 1 58 0209 026 BOLT 1 4 X 1 NC l it...
Page 53: ...6 1 1 92 2301 021 WASHER FLAT 5 16 1 1 93 0704 363 GUARD FRONT 1 1 94 0704 364 GUARD BELT 11 1 95 0209 425 BOLT 7 16 X 1 2 4 I U 1 96 0603 004 FITTING GREASE 1 1 97 1604 086 PIN COTTER3 32 X1 2 1 I 1...
Page 54: ...4 X 3 4 USS 3 1 132 2301 097 WASHER THRUST 1 1 133 0204 078 BEARING THRUST 1 1 134 2301 097 WASHER THRUST 1 8 I 1 135 0215 101 BUSHING 2 1 136 1401 021 NUT LOCK 5 16 USS 2 1 137 2301 021 WASHER FLAT...
Page 55: ...62 PIN CLEVIS 187 X 81 A B C E 2 1 171 1204 006 LINK LIFT VALVE A B C E 1 r 1 172 1201 099 LEVER WLDT VALVE A B C E 1 I i 1 173 2301 021 WASHER 5 16 FLAT A B C E 1 t 1 174 2301 004 WASHER LOCK 5 16 A...
Page 56: ...t 1 207 1604 107 PIN F 1 1 208 1604 002 PIN COTTER 3 32 X 1 F 1 1 209 1913 040 SPACER 5 8 X 7 8 F 1 1 210 1809 001 ROLLER CABLE F 1 1 211 1604 002 PIN COTTER 3 32 X 1 F 1 t KEY PART NUMBER DESCRIPTIO...
Page 57: ...3 32 IX1 1211 2 I 2 34 2301 021 WASHER FLAT5 16 2 2 35 2501 027 YOKE 2 2 36 1604 013 PIN 5 16 X 1 1 4 R 2 2 37 0209 350 BOLT 3 8 X 21 2 NC HH 4 1 11 2 38 1401 020 NUT 5 16 USS 2 if 2 39 2301 004 WASH...
Page 58: ...NG SNAP 1 2 71 0214 276 BRACKET BRAKEBAND 1 1 i 2 72 1904 191 SHAFT PULLEY PTO 1 j 2 73 1401 032 NUT 3 8 SAE 1 I j 8 2 74 1916 174 SPRING 1 I 2 75 1401 072 NUT LOCK 5 8 SAE 1 I 2 76 0603 004 FITTING G...
Page 59: ...SHER LOCK3 16 1 2 111 2301 005 WASHER START 5 16 1 2 112 1401 010 NUT 1 4 20 1 2 113 0307 004 CLAMP CABLE 1 2 114 1901 229 SCREW 10 24 X 1 2 1 8 l 2 115 0209 021 BOLT 1 4 X3 4 USS 2 2 116 2301 003 WAS...
Page 60: ...1 2 149 1601 017 PAD HYDRO PEDAL 1 2 150 0209 181 BOLT 5 16 X33 4 1 2 151 1401 032 NUT 3 8 SAE 1 t 2 152 1604 157 PIN SWITCH 1 c 2 153 0209 350 BOLT 3 8 16 X 2 1 2 1 2 154 0100 008 ACTUATOR SWITCH 1 2...
Page 61: ...ULLEY 1 2 188 1913 040 SPACER 4 KEY PART NUMBER DESCRIPTION USED ON OTY CODE 3 1 0209 835 BOLT 5 16 18X 2 B 4 8 t 3 2 PIO ITEM 3 13 NUT B 1 3 3 PIO ITEM 3 13 WASHER FLAT B 1 3 4 0307 026 CLAMP HOSE B...
Page 62: ...BRASS B 2 j 1 3 38 2301 001 WASHER LOCK 3 16 B 2 3 39 1923 045 STARTER SOLENOID B 1 I 3 40 0301 141 CABLE BAT RED POS B 1 I 3 41 2301 004 WASHER LOCK 5 16 B 1 I 3 42 1401 020 NUT 5 16 USS B 1 I t 3 4...
Page 63: ...O ITEM 3A 13 WASHER FLAT C D E F 1 _ 1 1 3A 4 0307 026 CLAMP HOSE C D E F 1 3A 5 0812 076 HOSE FUEL 1 X 26 C D E F 1 3A 6 0307 026 CLAMP HOSE C D E F 1 3A 7 0812 025 HOSE FUEL 1 4 X 2 5 C D E F 1 3A...
Page 64: ...45 STARTER SOLENOID C O E F 1 3A 40 0301 141 CABLE BAT RED POS C O E F 1 I 3A 41 2301 004 WASHER LOCK 5 16 C O E F 1 3A 42 1401 020 NUT 5 16 USS C O E F 1 r 3A 43 0209 021 BOLT 1 4 X 3 4 C O E F 2 3A...
Page 65: ...ITEM 3B 13 WASHER FLAT A 1 38 4 0307 026 CLAMP HOSE A 1 3B 5 0812 076 HOSE FUEL 1 X 26 A 1 38 6 0307 026 CLAMP HOSE A 1 8J t 38 7 0812 025 HOSE FUEL1 4 X 2 5 A 1 f 3B 8 0307 026 CLAMP HOSE A 1 t 3B 9...
Page 66: ...1401 020 NUT 5 16 USS A 1 1 3B 43 0209 021 BOLT 1 4 X 3 4 A 2 3B 44 2301 003 WASHER LOCK 1 4 A 2 i 3B 45 1401 010 NUT 1 4 USS A 2 t 3B 46 0209 519 BOLT 1 2 X 1 1 2 NF A 2 I I 3B 47 0811 043 HARNESS WI...
Page 67: ...1 115 CABLE A 1 I t KEY PART NUMBER DESCRIPTION USED ON QTY i CODE 4 1 1913 283 SPACER TRANSMISSION 1 8 cj Ii 4 2 1806 144 RING SNAP 1 4 3 0702 148 GEAR MITRE 1 4 4 0204 040 BEARING BALL 1 4 5 1913 26...
Page 68: ...OUSING AXLE LONG 1 I 4 36 2301 006 WASHER LOCK 3 8 6 F 1 4 37 0209 307 BOLT 3 8 X 3 4 NC 6 t 4 38 403 003 DIFFERENTIAL 1 I 4 39 1401 071 NUT FULL 5 8 SAE 10 4 40 2301 096 WASHER CUP 5 8 10 i 4 41 1806...
Page 69: ...935 003 TORQUESPIDER FINISHED 2 I 5 12 1401 020 NUT 5 16 1USS 8 5 13 2301 004 WASHER LOCK 5 16 8 5 14 0209 120 BOLT 5 16 X 1 1 4 8 KEY PART NUMBER DESCRIPTION USED ON QTY CODE 6 1 0401 136 DECAL BRAKE...
Page 70: ...jf 204 5 c f J r I 158 206 205 175 174173 172 I I 157 I 11 2 209 208 210 t t 74 15 FIGURE 1 TRACTOR EXPLODED VIEW ALL...
Page 71: ...141_ 200 ILLUSTRATED PARTS LIST 158 142 ci l 140 1 157 144 156 143 145 148 _146 147 18 I 106 9 20 _54 74 N 16 48 69 YAZOO YHR SERIES MOWERS 75 55 OWNER S MANUAL...
Page 72: ...151 e 166 150 147 142 149 J 95 i 126 7j 125 I 97 124 123 96 j 120 93 115 119 91 89 118 88 86 84 6 83 107 80 8 187 61 69 P 49 114 14 50 i 13 51 65 11 52 11 108 12 V 5554 53 85 I 6 10 41 t I 62 56 112 1...
Page 73: ...ILLUSTRATED PARTS LIST 6 2 163 164 167 168 4 2 1 I 4 3 i _ I l 22 _14 52 4 23 15 53 85 J i I 9 41 46 fI 29 D y 28t 30 1 32 j li YAZOO YHR SERIES MOWERS 70 OWNER S MANUAL t i...
Page 74: ...52 50 53 I I 60 c 59 q r 6 9 f 1 11 t t I 68 67 46 7 36 I IJ 71 I 66 45 44 raJ j 10 I 43 fI CfttIl 34 33 39 I 3 65 _35 f 32 6 4 3 8 IJ 37 __ 63 31 41 i 62 42 73 FIGURE3 TRACTOR EXPLODED VIEW YHRLW20...
Page 75: ...ILLUSTRATED PARTS LIST I 29 28 33 LlJl J 30 32 1 31 27 26 71 YAZOO YHR SERIES MOWERS OWNER S MANUAL...
Page 76: ...2 e 51 1 50 53 1 56 57 I 58 I 60 I 59 911 61 I 1 10 t i 68 9 67 36i i 45 II r 44 I fif 43 I 64 39 I 34 65 6 35 i 38 33 I 6 6 37 rI e 41 t 42 71 FIGURE 3A TRACTOR EXPLODED VIEW YHRLK20 YHRK20 YHRLK18 Y...
Page 77: ...ED PARTS LIS1 3 I I I foe I 1 5 5 f 4 6 I i 13 1 7 Q r 12 14 I I 11 5 10 I 16 40 Ad 69 A J 27 Sj 33 I 26 1 32 I ifni I tiJ 4 I I 2 31 I 111 25 23 _24 YAZOO YHR SERIES MOWERS 72 6 OWNER S MANUAL p c o...
Page 78: ...I 54 60 9 1 1 1 I 10 11 9 8 74 8 71 I I OO 13 I I I 45 I 1 1 11 I 44 I U 70 I 43 75 I I j 69 f f 34 3 1 I I L__ 68 3 I 3 65 72 W 61 64 66 i y 38 tI 37 63 31 41 62 42 t FIGURE 38 TRACTOR EXPLODED VIEW...
Page 79: ...ILLUSTRATED PARTS LIST I 5 6 13 I l c1 I 1 i 1 4 i A412 1 1 11 15 O 16 29 28 27 26 25 I 23 24 73 YAZOO YHR SERIES MOWERS OWNER S MANUAL...
Page 80: ...I 53 1 ti 4 5 J r f i I r t C J a EE c 0 La i 49 II I I 0 12 I r 13 II I G IX 171 151 50 I Wf 51 21 l1 27 26 _ 38 30 31 G I I D I I r II I 23 I I 24 28 I I c fC 0 ee 1 t 25 48 47 4 46 41 45 44 43 t 4...
Page 81: ...1 TS LI ST i I i 1 I j I I I I I 1 i 1 I 1 I i i J I I i i i 1 j 5 4 V 8 10 i 1 9 FIGURE 5 BRAKE ASSEMBLY EXPLODED VIEW ALL 75 YAZOO YHR SERIES MOWERS e OWNER S MANUAL 1...
Page 82: ...j t ILLUSTRATED PARTS LIST Me I i I FIGURE6 WARNINGANDCAUTIONDECALPLACEMENT ALL I I b c 1T j ci C C YAZOO YHR SERIES MOWERS 76...
Page 83: ...I J I I J I I i 000000000000 Z oz 1 I Jf 1I f I 1 C Z C t I 0t 0 10 1 0 1 1 I I H CX1 CX1 t j Ct j t j 0 i i C h l 0 t I X 1 I 4 x tf I 0 t j cf 0 t j J t 0 t j H tZJ j 2CX1 2 CX1 0 t x 0 H C t j C C...