Ariens 911160 - LM21 User Manual

GB - 13

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.

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. 

1. Shut off unit.
2. Remove grass bag.
3. Install Mulchmaster plug (see below).
4. Remove side discharge cover and keep 

hardware.

5. Attach side discharge deflector to studs 

on mower. Make sure deflector covers 
discharge opening.

6. Secure with cover hardware from step 4.

1. Shut off unit.
2. Remove grass bag and install side 

discharge cover. 

3. Open rear door and insert Mulchmaster  

plug with the beveled face to the left. 

4. Close rear door.

NOTE: Rear door must close flush.
NOTE: For maximum mulching performance, 
install the Mulchmaster Mulching Kit. See 
Accessories.

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 Ariens original 
equipment replacement bag only.

Figure 8

Side Discharge Cover

Figure 9

Side Discharge Deflector