Specifications4MODEL MBK23TRANSMISSION (continued)Neutral Transmission Release by Manual Dump ValveFinal Drive Transaxle Direct to Drive WheelTransmission FluidFactory Service 20W-50 Multi-Viscosity Motor Oil (Minimum SL Grade Oil)Transmission Capacity 79 fl oz (2336 ml)Transmission Cooling Cooling Fan Mounted on Drive PulleyOil Filter Hydro-Gear ® P/N 52114 (Walker P/N 2026-6)Ground Travel SpeedForward m.p.h. (km/h)Reverse m.p.h. (km/h)0-8 (0-13) Infinitely Variable0-5 (0-8) Infinitely VariableBLADE DRIVEPTO Shaft Quick Disconnect Splined Shaft with Two (2) High-Speed U-JointsBlade Drive Clutch and Brake Manual Belt Tightener Clutch and Band Brake[Stops Blades within Five (5) Seconds of Disengagement]TIRE SIZEDeck Caster Wheel 2.80/2.50-4 Pneumatic (4-Ply)Deck Caster Wheel (Optional) 8 x 3.00-4 Foamed RubberDrive 18 x 8.50-10 (4-Ply Low-Profile)Rear 11 x 4.00-5TIRE PRESSUREDeck Caster Wheel 20 PSI (137 kPa)Drive 15 PSI (103 kPa)Rear 20 PSI (137 kPa)DRIVE BELTSEngine PTO Walker P/N 4230-1Ground Drive Walker P/N 4248SEAT Contour-Molded, with Nylon Backed Vinyl Cover andIntegral Foam CushionFRAME/BODY CONSTRUCTIONFrame/Body 3/16 Plate SteelDeck 11 Gauge Steel