Walker R21 User Manual

Assembly Instructions for the R21
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7. Install the deck tilt bar and with the aid of a
second person, lift the front of the deck. Slide
the deck counterweight spring over the end of
each carriage bolt onto the carrier frame.
Note: If a second person is not available, lift
the front of the deck and place blocks under
the front wheels to secure the deck before
installing the counterweight springs.
Install Counterweight Spring on Carrier Frame
IMPORTANT: Make sure the counterweight
spring hook is connected to the post on the
carrier frame and not on the carriage bolt.
Counterweight
spring on the
carrier frame post
Counterweight Spring on Carrier Frame
8. Lower the deck and install the nut onto each
carriage bolt. Using a 11/16 in. wrench,
tighten the nuts and then loosen them 1/2
turn until the pivot joint moves freely to allow
for the deck to pivot and tilt up.
Install Nut on Carriage Bolt
9. Raise the footrest.
10. Remove the four (4) wing nuts on the deck
belt cover and slide the cover out.
11. Remove the blade drive belt from LH spindle
pulley to create slack for installing the belt
below the engine.
LH
Spindle
Pulley
Remove Belt from LH Spindle Pulley for Slack
12. Lift the seat.
13. Route the blade drive belt through the idler
pulleys on the tractor and around the clutch
pulley below the engine. Be sure there is a
1/4 twist on each side between the idler pul-
leys and the clutch pulley below the engine.
Refer to the Belt Routing Decal for details.
Note: The Belt Routing decal located under
the seat panel shows correct belt placement.
14. Verify the belt position around the pulleys in
the deck using the Belt Routing decal as a

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)