Gravely 911530 - Pro 21 SCH , ASSEMBLY, OPERATION,

GB - 10
Use only replacement parts designed for your
unit. See your Gravely Dealer.
Allow engine to cool before storing in any
enclosure.
ALWAYS clean unit before extended storage.
See engine manual for proper storage.
DO NOT store unit inside a building with fuel in
the fuel tank where any ignition sources are
present.
Use only accessories which have been
approved by Gravely and are properly
installed.
Check attachments frequently and replace
worn or damaged components with
manufacturer’s recommended parts.
CARTON CONTENTS
ASSEMBLY
1. Unfold and adjust handlebar. See
Handlebar Height on page 16.
NOTE: DO NOT bend the speed control rod (if
equipped) when unfolding the handlebars.
2. Fill engine crankcase with oil. See engine
manual.
3. Assemble grass bag onto bag frame.
4. Set-up mower for bagging, side
discharge or mulching. See Mower Set-
Up on page 12.
5. Fill fuel tank. See Filling Fuel Tank on
page 12.
6. Connect spark plug wire.
7. Check the engine/blade control feature.
Try starting the engine without the
engine/blade control held against the
handlebar. Engine must not start. If
engine starts, stop engine and adjust or
repair engine/blade control. See
Engine/Blade Control Adjustment on
page 17.
CONTROLS AND FEATURES
See Figure 1 for locations.
Engine/Blade Control
The engine/blade control must be held against
the handlebar to start the engine and blade.
ASSEMBLY
CAUTION: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
Figure 4
1. Mower Unit
2. Side Discharge Deflector
3. Mulch Plug
4. Literature Pack
5. Grass Bag
6. Grass Bag Frame
1
2
3
4
5
6
OM1620
OPERATION
WARNING: Improper operation can
lead to injury. Learn what the
controls do and how they work.
Thoroughly read and understand
entire Operator Manual.
CAUTION: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
CAUTION: Check function of
Engine/Blade Control regularly.
Improper function of control could
cause injury.