Walker R21 User Manual

Assembly Instructions for the R21
60
5. Connect the battery cable to the negative bat-
tery terminal using the hardware provided in
the hardware bag. You will need a 1/4-20 x
5/8 hex bolt, a 1/4 SAE washer, and a 1/4-20
Keps nut to make the cable connection. Slide
the rubber boot up and over the battery post
completely to prevent an electrical short.
Assembling the Deck
The following steps prepare the deck for the R21
for initial use after shipment from the factory.
Deck Caster Wheel Installation
1. Remove the bolt, nut, and axle spacer tube
from each deck caster wheel fork.
2. Fit the axle spacer tube through the wheel
hub, and t the assembly into the wheel fork.
3. Insert the 3/8-16 x 4-1/2 in. bolt through the
wheel fork with the bolt head to the outside
and install the 3/8-16 in. Keps nut.
4. Tighten the bolt and nut until the inner bearing
race bottoms against the inside of the wheel
fork (will not turn) while the wheel spins freely
without binding.
Axle Spacer Tube
Axle Bolt
Deck Caster Wheel Installation
5. Grease the caster pivot bearings and wheel
bearings - two (2) grease ttings for each
caster wheel.
Tilt-Up Roller Wheel Installation
Mount the two (2) tilt-up roller wheels on the
brackets on the rear skirt of the deck housing us-
ing the axle bolt (Walker P/N F543), 3/8 in. plain
washer, 3/8 in. wave spring washer (between
bracket and wheel) and 3/8-16 Whiz locknut.
Tighten the axle bolt until the wheel rolls freely but
is not loose.
Roller
Wheels
Roller Wheel Installation
Installing the Deck
WARNING
Part of this procedure can be more easily ac-
complished with two (2) people.
1. Remove and discard the shipping link from the
RH deck support arm by clipping the cable tie.
Remove and
Discard
Shipping Link
Shipping Link on RH Deck Support Arm

Walker R21 Specifications

General

Drive System	Hydrostatic
Cutting Height	1.5 - 4.5 inches
Engine	Kohler CH740
Engine Type	Air-cooled
Cutting Width	52 inch
Wheel Size	20 inches (rear)