Lawn Mower 8211 3011 11 Stiga Park 121m Operators Manual

							STIGA PARK
121 M 
						

							2
D
H
F
G
I
I
1. Park -1993
2. Park -1993
3. Park -1993
4. Park -19935a.
6a. Park -1999
7.
8.
6b. Park 2000-
5b.  
						

							3
J
V Z
YX
W
Denna produkt, eller delar därav, omfattas av följande
mönsterskydd:
This product, or part of it, is covered by the following
design registration:
Sverige/Sweden 62 435
Tyskland/Germany M97 07 997.9 (pending)
9.
13.
14. 10.
11 .
15.
12. 
						

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ENGLISHGB
SYMBOLS
The following symbols can be found on the 
machine to remind you of the care and attention 
that are required during use.
The symbols mean:
Warning!
Read the instruction manual and the safety 
manual before using the machine.
Warning!
Do not insert your hands or feet under the 
cover when the machine is in operation.
Warning!
Watch out for discarded objects. Keep 
onlookers away.
Warning!
Before starting repair work, remove the 
spark plug cable from the spark plug.
INTRODUCTION 
The cutting deck is available as standard in two 
versions:
- with mechanical setting of the cutting height
(item no. 13-2915).
- with factory-fitted, electrical setting 
of the cutting height (item no. 13-2921).
PREPARATIONS
Park, year models up to and including 1993:
In order for the deck to be used, the machine has to 
be modified: 
1. Remove the return spring for the articulated 
joint
(fig. 1).
2. Saw off the spring mount flush with the frame 
side member
(fig. 2).
3. Drill a new hole (Ø 8 mm), 8 mm from the lower 
edge of the frame side member (fig. 3). 
4. Install the spring in the new hole (fig. 4). 
INSTALLATION
CUTTING DECK
1. Screw the cutting deck into the deck mounts D 
(fig. 5a). 
2. Attach the lift spring to the implement lifter (fig. 
5b).
3. Install the lifting cylinder in the front lifting arm 
by inserting the accompanying spacer in the hole 
on the lifting cylinder and threading on two 
washers, one on either side. Secure with screw and 
nut (only applies to item no. 13-2921).
4. Connect the electrical contact to the socket on 
the side of the machine (only applies to item no. 
13-2921), (fig. 6).
V-BELT
1. Set the cutting height setting to an intermediate 
position.
2. Force the V-belt onto the machine’s centre 
pulley F (fig. 7). 
3. Tension the belt with belt idler G. The belt idler 
should be on the left of the belt viewed from the 
driver’s position. 
4. Park -1999:
Hook the belt idler spring H in the floor on the 
right side (fig. 7). 
SETTING
In order for the deck to cut evenly and attractively, 
it has to be correctly adjusted: 
1. Make sure the air pressure in the tyres is correct:
Front: 0.6 bar (9 psi).
Rear: 0.4 bar (6 psi). 
2. Place the machine on a level floor. Undo screws 
I (fig. 8). 
3. Adjust the deck so that the front and rear edge of 
the cover are the same height above the floor. 
4. Tighten the screws. 
USE
CUTTING HEIGHT
The cutting height can be varied from 30 to 80 mm. 
- item no. 13-2915 has seventeen fixed positions  
						

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for cutting height.
- item no. 13-2921 has continuously variable 
adjustment of cutting height. 
Note: Stated cutting heights apply when the 
machine is on a firm surface. 
CUTTING TIPS
For optimum ‘Multiclip effect’, follow these tips:
- cut frequently.
- run the motor at full revs.
- keep the underside of the cutting deck clean.
- use sharp blades. 
- do not cut wet grass.
- cut twice (with different cutting heights) if 
the grass is long. 
MAINTENANCE
PREPARATIONS
Unless otherwise stated, all service and 
maintenance must be carried out on a stationary 
machine when the motor is not running.
Prevent the machine from rolling by 
always applying the parking brake.
Prevent unintentional starting of the 
motor by always stopping the motor, 
disconnecting the spark plug cable 
from the spark plug and earthing it. 
Disconnect the negative cable from the 
battery. 
MAINTENANCE TIPS
To make cleaning and maintenance easier, the 
cutting deck can be folded up: 
1. Set the cutting height setting to an intermediate 
position (= drive belt minimum tension). 
2. Secure the tensioning arm on the hook.
3. Force the belt off the centre pulley F.
4. Undo both pins J (fig. 9). 
5. Grip the deck’s frame (fig. 10). 
6. Fold up the deck until it is upright on the rear 
support plates (fig. 11). 
CLEANING
After each use, the underside of the cutting deck 
should be rinsed off. If the grass has dried solid, scrape clean the 
underside. 
If necessary, paint the underside to prevent 
corrosion.
POSITIVE DRIVE BELTS
If one of the blades has struck a solid object (e.g. a 
stone), the belt tension may be altered. This can 
lead to the positive drive belt ‘over-meshing’ 
which, in the long term, can damage the blades. 
Adjust the belt tension if necessary: 
1. Secure the tensioning arm on the hook. 
2. Force the belt off the centre pulley F.
3. Dismantle the transmission cover. 
4. Undo tensioning arm K (fig. 12). 
5. Undo the bearing box’s mounting screws L (fig. 
13). 
6. Tension the positive drive belt by pressing the 
tensioning arm backwards. 
7. Tighten the tensioning arm’s mounting screw. 
8. Tighten the bearing box’s mounting screws. 
9. Repeat with the other positive drive belt.
When replacing positive drive belts, 
ensure that both the outer blades are 
always at right-angles to the central 
blade (see fig. 14). 
If the positive drive belts are incorrectly mounted, 
the blades will strike each other because they 
overlap. 
Always check the position of the blades after 
replacing a belt or adjusting belt tension. 
REPLACING BLADES
Use protective gloves when changing 
blades to avoid cutting yourself.
Ensure that the blades are always sharp. This 
produces the best cutting results. 
Always check the blades after a collision. If the 
blade system has been damaged, defective parts 
should be replaced.
Always use original spare parts. Non-
original spare parts can entail a risk of 
injury, even if they fit the machine. 
						

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The cutting system comprises three blade bars with 
two replaceable blades Y (fig. 15). When replacing 
blades, both should be replaced to avoid 
imbalance.
Install the new blades. Tighten screws V and W 
properly. Tightening torque: V - 9.8 Nm, W - 24 
Nm.
In the event of a powerful collision, the blades may 
be bent out. Undo the locking nut X and fold back 
the blade. Install a new original break bolt V. 
Tighten the locking nuts X and Z.
SPARE PARTS
STIGA original spare parts and accessories are 
designed specifically for STIGA machines. Please 
note that ‘non-original’ spare parts and accessories 
have not been checked or approved by STIGA:
The use of such parts and accessories 
can affect the function and safety of the 
machine. STIGA accepts no 
responsibility for damage or injuries 
caused by such products.
GGP reserves the right to make alterations to the 
product without prior notification.  
						

							www.stiga.com
GGP Sweden AB · Box 1006 · SE-573 28 TRANÅS