495073

MTD 990 series Manual

27
Zoom out
Zoom in
Previous page
1/30
Next page
27
MAINTENANCE AND REPAIR
Caution: Before performing any work on the unit:
– Switch off the engine.
– Wait until all moving parts have come to standstill;
the engine must have cooled down.
– Remove spark-plug terminal from the engine to prevent
the engine from starting unintentionally.
Have all repairs carried out by a repair shop only.
At the end of the season have the unit inspected and
serviced by a specialist company.
Maintenance schedule
1)
Have this work carried out by a specialist company.
Installing the cutting line
This section deals with both the installation of the
Split-Line™ and the simple standard line.
Always use a replacement cutting line with a diameter of
2.41 mm. If using a cutting line which has a length other than
the one indicated, the engine may overheat or misfire.
There are two methods of replacing the cutting line:
Wind the new line onto the inner coil
Install an inner coil with a prewound line
Wind the line onto the existing inner coil
1. Hold the outer spool with one hand and unscrew the
bump head clockwise with the other hand (Fig. 26).
Check that the bolt inside the bump knob can move
freely. Replace a damaged bump knob.
2. Remove the inner coil from the outer coil. (Fig. 26).
3. Take the spring out of the inner coil (Fig. 26).
4. Clean the inner coil, the spring, the shaft and the inner
surface of the outer coil with a clean cloth (Fig. 27).
5. Check the teeth on the inner and outer coils for wear
(Fig. 28). If required, remove burrs or replace the coils.
Note: The Split-Line™ (double lines) can be used on a coil
with slot-type holes only. Single line can be used on both
coil types. Use Figure 29 to identify your coil type.
Note: Always install the correct trim line length in the unit.
The line may not be released correctly if it is too long.
Installing the single line
To install the Split-Line™, please read Point 8
6. Take approx. 7.3 metres of new trim line and fold in half.
Feed each end of the line through each of the two holes
in the coil (Fig. 30). Pull the line through the coil until the
loop is as small as possible.
7. Wind the lines onto the coil in tight, even layers (Fig. 31).
Wind the line in the direction indicated on the coil. Place
your index finger between the two lines to prevent them
from overlapping. Do not overlap the ends of the line. In
addition to step 11.
Split-Line™
8. Take approx. 3.65 metres of new trim line. Feed one end
of the line through one of the two holes in the coil
(Fig. 32). Pull the line through the coil until there is only
approx. 10 cm left.
9. Feed the end of the line into the open hole in the coil and
pull the line tight until the loop is as small as possible
(Fig. 32).
10. Before winding the line, divide a length of approx. 15 cm.
11. Wind the line in tight, even layers in the direction
indicated on the coil.
Note: If the line is not wound in the direction indicated on the
coil, the cutting attachment will not run correctly.
12. Feed the ends of the line into the two retaining slots
(Fig. 33).
13. Feed the ends of the line through the eyes in the coil
housing and place the coil with spring in the coil housing
(Fig. 26) Press the coil and coil housing together. Hold
coil and coil housing and simultaneously grip the ends of
the line and pull firmly to detach the line from the
retaining slots in the coil.
Note: The spring must be installed on the coil before the
cutting attachment is reinstalled.
14. Hold the spool in place and install the bump head by
rotating it anti-clockwise. Tighten firmly.
Maintenance
work
before
using
the unit
after the
first
10 hours
every
10 hours
every
25 hours
Check fuel and
oil level
x
Change oil xx
Clean/oil air filter x
Clean spark
arrestor
x
Check/set
valve play
1)
xx
Check spark
plug/spark-plug
terminal
x
… 27 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for MTD 990 series at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of MTD 990 series in the language / languages: English as an attachment in your email.

The manual is 1,8 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of MTD 990 series

MTD 990 series User Manual - German - 31 pages

MTD 990 series User Manual - Dutch - 31 pages

MTD 990 series User Manual - French - 30 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info