Walker MDD (20.9 HP) - Manual (Page 8)

Specifications
4
MODEL MDD
TRANSMISSION (continued)
Service Brake Dynamic Braking through Hydrostatic Transmission
Parking Brake Mechanical Pin Lock in Transmission Gear
Neutral Transmission Release by Manual Dump Valve
Final Drive Gear Drive Axle
Transmission Fluid
Factory Service Mobil 1 Synthetic Motor Oil (15W50)
Alternate Transmission Fluid SAE 30W Straight Viscosity Motor Oil
Transmission Fluid Capacity 1 qt (1 liter)
Transmission Cooling Cooling Fan Mounted on Drive Pulley
Ground Travel Speed
Forward m.p.h. (km/h)
Reverse m.p.h. (km/h) 0-5 (0-8) Infinitely Variable
0-5 (0-8) Infinitely Variable
BLADE DRIVE
PTO Shaft Quick Disconnect Spline Shaft with Two High-Speed
U-Joints
Blade Spindle Each Blade (2) Mounts Direct on Peerless Right Angle Gearbox
with Tee Gearbox in Center Connected to PTO Shaft (Complete
Geared Drive, Peerless Model 1000 Gearboxes)
Blade Drive Clutch and Brake Manual Belt Tightener Clutch and Band Brake (Stops Blades
within Five (5) Seconds of Disengagement)
Max. Blade Speed
[25 in. (64 cm) Blade]
@ 3600 RPM Engine 2900 RPM [16700 FPM (5090 m/min)]
TIRE SIZE
Deck Caster Wheel 2.80/2.50-4 Pneumatic (4-Ply)
Deck Caster Wheel (Optional) 8.25 x 2.75 Semi-Pneumatic
Drive 18 x 9.50-8 (4-Ply)
Rear (Dual) 13 x 5.00-6 (4-Ply)
TIRE PRESSURE
Deck Caster Wheel 20 PSI (137 kPa)
Drive 15 PSI (103 kPa)
Rear 20 PSI (137 kPa)