Walker D21d Operator's Manual page 8

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