Specifications
D21d
4
TRANSMISSION (continued)
Service Brake
Dynamic Braking through Hydrostatic Transmission(s)
Parking Brake
Mechanical Pin Lock in Transmission Gear
Neutral
Transmission Release by Manual Dump Valve
Hydrostatic Transmission Oil
Transmission Oil Filtration
Walker Transmission Oil Performance System (TOPS
TM
)
Factory Service
Mobil SHC
TM
630, Walker P/N 6450-20
Transmission Filter
Walker P/N 5024-13
Transmission Oil Capacity fl oz (L)
80 (2.4)
Transmission Cooling
Cooling Fan Mounted on Drive Pulley
Final Drive Oil (Gear Axle)
Final Drive
Gear Drive Axle
Factory Service
SAE E.P. 80W-90 (API GL-5) Gear Lube
Final Drive Oil Capacity fl oz (L)
24 (0.71)
Ground Travel Speed
Forward MPH (km/h)
Reverse MPH (km/h)
0-7 (0-11) Infinitely Variable
0-5 (0-8) Infinitely Variable
BLADE DRIVE
PTO Shaft
Quick Disconnect Sliding Spline Shaft with Two (2) High-Speed
U-Joints
Blade Drive Clutch and Brake
Manual Belt Tightener Clutch and Band Brake
[Stops Blades within Five (5) Seconds of Disengagement]
TIRE SIZE
Deck Caster Wheel
8 x 3.00-4 Semi-Pneumatic (Standard)
8 x 3.00-4 Pneumatic 4-Ply (Optional)
11 x 4.00-5 (Pneumatic 6-Ply, DS52, DS60, DS74 Only)
Drive
18 x 9.50-8 (Pneumatic 4-Ply, Standard)
18 x 10.50-10 (Pneumatic 4-Ply, Optional Low-Profile)
Tailwheel
13 x 4.50-6 (Pneumatic 6-Ply, Standard Dual)
13 x 8.00-6 (Pneumatic 4-Ply, Optional Single)
TIRE PRESSURE PSI (KPA)
Deck Caster Wheel*
20 (137)
Drive
15 (103)
Tailwheel
20 (137)
* If equipped with optional pneumatic tires