Gravely 911530 - Pro 21 SCH - Manual (Page 12)

GB - 12
Speed Control
Speed control rod changes the mower’s
forward travel speeds.
High –Push rod all the way
forward.
Low –Pull rod all the way
rearward.
Start mowing slowly and use speed control
rod to gradually increase speed to a safe,
comfortable walking pace.
Speed control rod should hold the desired
speed. If not, adjust speed control bell crank.
(See
Speed Control Bell Crank on page 19.)
Wheel Drive Control
NOTE: Engine must be running for wheel drive
to propel unit.
To drive forward:
Slowly squeeze and hold wheel drive control
against handlebar.
To stop:
Release wheel drive control.
FILLING FUEL TANK
To add fuel to fuel tank:
1. Put unit in open or well-ventilated area.
2. Stop engine and allow to cool.
3. Clean fuel cap and surrounding area.
4. Remove cap.
IMPORTANT: See engine manual for correct
type and grade of fuel.
5. Fill fuel tank. (see Specifications on
page 21 for tank capacity.)
6. Replace fuel cap and tighten.
7. ALWAYS clean any spilled fuel.
MOWER SET-UP
To Bag
1. Shut off unit.
2. Install side discharge cover.
3. Lift rear door.
4. Hook grass bag frame on mounting
flange.
5. Lower rear door.
If necessary, lift rear of grass bag frame to lock
in position.
There should be no openings between bag
and mounting surface after installing bag. If
necessary, clear debris from bag mounting
surface.
Grass Bag Removal
1. Shut off unit.
2. Lift rear door.
3. Use handle to lift bag off mounting flange.
4. Close rear door.
NOTE: Empty grass bag and clean mower pan
after each use. DO NOT allow grass clumps or
a grass coating to collect inside of grass bag
or mower pan. Remove grass bag from
mower, wash bag with hose and allow to dry.
To Side Discharge
1. Shut off unit.
2. Install Mulchmaster plug (see below).
3. Remove grass bag.
CAUTION: Unit will move forward at
engine start if wheel drive control is
engaged. ALWAYS release wheel
drive control before starting unit.
OM0480
STOP GO
OM1240
CAUTION: DO NOT operate
mower unless either side discharge
cover or side discharge deflector is
installed. Thrown objects may
cause damage or injury. Never
operate unit with rear door open
unless grass bag is in place.
CAUTION: If clog or obstruction
prevents grass flow, release
engine/blade control and disconnect
spark plug wire before attempting to
clear away any clogs.
CAUTION: Check grass bag
frequently for wear or deterioration.
Replace worn or damaged bag with
Gravely original equipment
replacement bag only.