MTD remington Install guide

Professional Shop Manual
Remington 22” Trimmer Mower
MTD Products Inc. - Product Training and Education Department
NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outdoor power
equipment of the kind described in this publication, and are not intended for use by untrained or inexperienced individuals.
These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperi-
enced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all
instructions and use common sense when working on power equipment. This includes the contents of the product’s Oper-
ators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication,
although care has been taken to make it as complete and accurate as possible at the time of publication. However, due to
the variety of outdoor powerequipment and continuingproduct changes that occur over time, updates will be made to these
instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a
product. The company reserves the right to make changes at any time to this publication without prior notice and without
incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations
used in this publication are for reference use only and may not depict actual model and component parts.
© Copyright 2013 MTD Products Inc. All Rights Reserved

I
About the text format............................................................................................. 1
Fasteners ..............................................................................................................3
Assembly instructions ...........................................................................................3
The 22” Trimmer Mower .......................................................................................3
Understanding model and serial numbers.............................................................4
Trimmer Line .........................................................................................................5
Skid Assembly ......................................................................................................6
Spindle ..................................................................................................................7
Belt Replacement ................................................................................................10
Wheels and Axle .................................................................................................12
Debris Screen .....................................................................................................13
Table of Contents

II

22” Trimmer Mower
1
Professional Service Manual Intent: This manual is intended to provide service dealers with repair and overhaul
procedures for the Remington trimmer mower.
Disclaimer: The information contained in this manual is correct at the time of writing. Both the product and the infor-
mation about the product are subject to change without notice.
About the text format
Certain flags and key words are used to indicate the nature of the text that accompanies them. They are as follows:
CAUTION: Indicates a potentially hazardous situation that, if not avoided, may result
in minor or moderate injury. It may also be used to alert against unsafe practices.
WARNING: Indicates a potentially hazardous situation that, if not avoided, could
result in death of serious injury.
DANGER: Indicates an imminently hazardous situation that, if not avoided, will result
in death or serious injury. This signal word is to be limited to the most extreme situa-
tions.
NOTE: “NOTE” is used to point-out helpful information that may not fit as a step in a procedure.
1. Numbered steps indicate specific things that should be done, and the order in which they should be done.
1a. Sub steps will be lettered and nested within steps. Two or more sub steps may be combined to describe
the actions required to complete a step.
•Bullet points: Indicate sub-steps or points of interest, without implying order or relative importance.
Disclaimer: This manual is intended for use by trained, professional technicians.
• Common sense in operation and safety is assumed.
• In no event shall MTD be liable for poor text interpretation, or poor execution of the procedures described
in the text.
If the person using this manual is uncomfortable with any procedures they encounter, they should seek the help
of a qualified technician.
22” TRIMMER MOWER
! WARNING! WARNING
! DANGER! DANGER
! CAUTION! CAUTION

2
• Be prepared in case of emergency:
Keep a fire extinguisher nearby
Keep a first aid kit nearby
Keep emergency contact numbers handy
• Replace any missing or damaged safety labels on shop equipment.
• Replace any missing or damaged safety labels on equipment being serviced.
• Remember that some hazards have a cumulative effect. A single exposure may
cause little or no harm, but continual or repeated exposure may cause very serious
harm.
• Clean spills and fix obviously dangerous conditions as soon as they are noticed.
• Lift and support heavy objects safely and securely.
• Be aware of your surroundings and potential hazards that are inherent to all power
equipment. All the labels in the world cannot protect a technician from an instant of
carelessness.
! CAUTION! CAUTION
• Grooming and attire:
Do not wear loose fitting clothing that may become entangled in equipment.
Long hair should be secured to prevent entanglement in equipment.
Jewelry is best removed.
• Protective gear: includes, but is not limited to
Clear eye protection ................................ while working around any machinery
Protective gloves..................................... where necessary
Armored footwear.................................... when working around any machinery
Hearing protection................................... in noisy environments
Chemically resistant gloves..................... when working with chemicals or solvents
Respirator................................................ when working with chemical or solvents
Appropriate tinted eye protection............. when cutting or welding
Flame resistant headgear, jacket, chaps. when cutting or welding
! WARNING! WARNING
• Exhaust fumes from running engines contain carbon monoxide (CO). Carbon
monoxide is a colorless odorless gas that is fatal if inhaled in sufficient quantity.
Only run engines in well ventilated areas. If running engines indoors, use an
exhaust evacuation system with adequate make-up air ventilated into the shop.
! DANGER! DANGER

22” Trimmer Mower
3
Fasteners
• The fasteners used on the equipment described in this manual, and the engine that powers it are a combi-
nation of metric and fractional inch. For this reason, wrench sizes are frequently identified in the text, and
measurements are given in U.S. and metric scales.
• If a fastener has a locking feature that has worn, replace the fastener or apply a small amount of releas-
able thread locking compound such as Loctite® 242 (blue).
• Some fasteners, like cotter pins, are single-use items that are not to be reused. Other fasteners, such as:
lock washers, retaining rings, and internal cotter pins (hairpin clips), may be reused if they do not show
signs of wear or damage. This manual leaves that decision to the judgment of the technician.
Assembly instructions
•Torque specifications may be noted in the part of the text that covers assembly. They may be summa-
rized in tables along with special instructions regarding locking or lubrication. Whichever method is more
appropriate will be used. In many cases, both will be used so that the manual is handy as a quick-refer-
ence guide as well as a step-by-step procedure guide that does not require the user to hunt for informa-
tion.
•Lubricant quantity and specification may be noted in the part of the text that covers maintenance, and
again in the section that covers assembly. They may also be summarized in tables along with special
instructions. Whichever method is more appropriate will be used. In many cases, the information will be
found in several places in the manual so that the manual is handy as a quick-reference guide as well as a
step-by-step procedure guide that does not require the user to hunt for information.
• The level of assembly instructions provided will be determined by the complexity of reassembly, and by
the potential for damage or unsafe conditions to arise from mistakes made in assembly.
• Some instructions may refer to other parts of the manual for subsidiary procedures. This avoids repeating
the same procedure two or three times in the manual.
The 22” Trimmer Mower
The 22” wheeled string trimmer was intended for clear-
ing heavy growth from unimproved land. This model has a
engine brake feature. When the engagement control lever
is released, the engine will stop running. See Figure 1.
NOTE: For engine related information refer to publication
769-03354B
Figure 1

4
Understanding model and serial numbers
The model number of the 22” trimmer mower described in
this manual is 25A-262J710.
The break down of what the model number means is as
follows:
• 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .indicates that this is a edger or trimmer
• . . .A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .sales revision level
• . . . . “-”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .not used
• . . . . . . . 26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .indicates this is a trimmer mower
• . . . . . . . . . .J7 . . . . . . . . . . . . . . . . . . . . . . . . . . . .engine
• . . . . . . . . . . . . 783 . . . . . . . . . . . . . . . . . . . . . . . .customer number
The serial number is 1I243P10039. The serial number reads as follows:
• 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .engineering level
• . I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .month of production (I = September)
• . . .30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .day of the month
• . . . . . 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .last digit of the year
• . . . . . . . P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .plant it was built in
• . . . . . . . . . . 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .assembly line number
• . . . . . . . . . . . . 0011 . . . . . . . . . . . . . . . . . . . . . . .number of unit built
Additional technical and service information may also be available to our company authorized service center per-
sonnel through our company corporate offices, regional parts distributors and regional service center field support
personnel. Please contact the designated support office in your area or our corporate offices directly should further
service information be needed.
MTD Products LLC
P.O. Box 368022
Cleveland, OH 44136
Telephone: [phone]
www.mtdproducts.com
Figure 2

22” Trimmer Mower
5
Trimmer Line
The trimmer line is a fixed length and can easily be
replaced following the diagram on the front of the trimmer
base assembly. See Figure 3.
1. Disconnect and ground the spark plug wire.
2. Remove the worn string from the spindle.
3. Fold the replacement trimmer line in half and insert
both ends through the loop near the edge of the spin-
dle.
4. Pull the ends of the trimmer line through the loop until
the line is securely beneath the metal tab.
See Figure 4.
5. Cross the line ends and pull each tightly to secure the
trimmer line in place.
NOTE: The line will be trimmed to final length by the blade
mounted under the deflector.
NOTE: Always use 490-040-C035 trimmer line.
Figure 3
12
Figure 4

6
Skid Assembly
NOTE: The skid assembly comes in contact with
the ground during normal operation and will
require replacement as normal mainte-
nance. The skid assembly is available as
service part number: 982-0143.
See Figure 5.
To remove/replace the skid assembly:
1. Turn of the engine.
2. Disconnect the spark plug wire and ground it to the
engine block.
3. Remove and discard the three nuts and bolts that
secure the skid to the spindle assembly using a pair
of 7/16” wrenches.
4. Lower the skid off of the spindle.
5. Install the skid by following the previous steps in reverse order.
NOTE: Do not re-use the original hardware, new hardware will be included with the skid assembly.
Figure 5
skid assembly

22” Trimmer Mower
7
Spindle
NOTE: The spindle can not be serviced, and must be
replaced as a unit if it gets damaged. See Figure 6.
NOTE: The cutting height is adjusted by sliding the disc
that the trimmer line is attached to up or down the
spindle shaft.
• The disc is held in position by two wing nuts, that
must be loosened before making a height adjust-
ment, and re-tightened to hold that adjustment.
• The skid assembly remains fixed, and the disc
moves in relation to the skid assembly.
• The wing nuts cannot be removed from their
studs: the threads are peened.
1. Disconnect and ground the spark plug wire.
2. Remove the nuts from the four carriage bolts that
hold the deflector to the trimmer base, using a 7/16”
wrench. See Figure 7.
3.Rotate the deflector so that the wide part of the center
hole in the deflector will fit past the spindle. See Figure 8.
4.Remove the deflector.
Figure 6
spindle
trimmer line disc
wing nut
Figure 7
nuts
Figure 8
Removing the deflector.

8
5. Loosen the idler pulley nut and bolt with a pair of 1/
2” wrenches, until the belt keeper opens.
See Figure 9.
6. Slip the belt off of the idler pulley. See Figure 10.
Figure 9
belt keeper
lock nut
Figure 10
i
Idler Pulley

22” Trimmer Mower
9
7. Disconnect the extension spring from the belt guide
bracket. See Figure 11.
NOTE: The extension spring applies tension to the idler
pulley maintaining belt tension
8. Remove the hex nut and hex bolt that hold the idler
pulley assembly to the trimmer base, using a pair of
1/2” wrenches.
NOTE: Record the mounting hardware positions as you
remove it. See Figure 12.
9. Remove the center hex bolt securing the spindle
assembly to the trimmer base from the top, using a 1/
2” wrench.
10. Remove the remaining nuts and bolts which secure
the spindle to the trimmer base, using a pair of 1/2”
wrenches.
NOTE: Three of these bolts will also hold the belt keeper in
position.
11. Remove the belt from the spindle.
12. Remove the spindle.
13. Install the spindle by following the previous step in
reverse order.
Figure 11
extension spring
Figure 12
spacer
washer
nut
shoulder spacer
extension spring
Figure 13
mounting Bolts
mounting Bolts
idler assembly bolt
spindle bolt

10
Belt Replacement
IMPORTANT: Allow the engine to cool if it has been
running.
1. Disconnect and ground the spark plug wire.
2. Drain the fuel tank.
3. Position the trimmer so the rear edge of the trimmer
base is resting securely on a work bench, and pivot
the handle down.
NOTE: The handle should be securely weighted
down, so the trimmer stands on end.
4. Remove the hex nuts from the carriage bolts that
secure the deflector shield to the trimmer base,
using a 7/16” wrench. See Figure 14.
5. Remove the carriage bolts and the deflector.
6. Disconnect the extension spring from the belt
keeper bracket.
7. Remove the belt keeper bracket, using a pair of 1/2”
wrenches. See Figure 15.
8. Loosen the idler pulley nut and bolt, using a pair of
1/2” wrenches, until the belt keeper opens.
9. Slip the belt off of the idler pulley.
10. Loosen the idler bracket nut and bolt using a pair of
1/2” wrenches.
11. Grasp the idler bracket assembly and pull inward
until the belt can be removed from the spindle
assembly.
12. Slip the belt out of the spindle pulley groove. See
Figure 16.
Figure 14
nuts
Figure 15
belt keeper bracket
extension spring
Figure 16
belt

22” Trimmer Mower
11
13. Secure the pulley flywheel so that it will not spin
during removal of the crankshaft bolt. See Figure 17.
14. Remove the crankshaft bolt using a 9/16” wrench.
15. Remove the left wheel.
16. Slide the axle to the right until it clears the left side of
the frame. See Figure 18.
17. Slip the belt off of the pulley flywheel.
18. Remove the pulley flywheel.
19. Remove the belt.
20. Install the belt by following the previous steps in
reverse order.
21. Test run the trimmer mower in a safe area before
returning it to service.
Figure 17
flywheel
Wrench preventing the
flywheel from turning
Figure 18
axle

12
Wheels and Axle
To remove the wheels and axle:
1. Remove the screw and washer that secures the
wheel, using a 7/16” wrench. See Figure 19.
NOTE: If the axle is being removed, the left wheel
must be removed.
NOTE: Both wheels are supported with an inner
and outer sealed ball bearing
NOTE: There is a stop welded to the axle where it
passes through the right hand side of the
trimmer base. This stop will not allow the
axle to slide or rotate. See Figure 20.
Figure 19
axle bolt
and
washer
Figure 20
Axle stop and
hole in frame

22” Trimmer Mower
13
2. Remove the spacer and wave washer between the
left hand side wheel and the trimmer base.
See Figure 21.
3. Slide the axle and wheel to the right.
Debris Screen
There is a debris screen over the cooling fan, the
screen is necessary to prevent the cooling fins from get-
ting clogged with trimming debris.The trimmer should not
be operated if the screen is clogged or covered. The
screen will need cleaned occasionally with normal mainte-
nance.
To remove/replace the debris screen:
1. Use a screw driver and push the front locking tab
inward to release the screen from the engine.
See Figure 22.
Figure 21
spacer
wave washer
Figure 22
Locking Tab
Debris Screen
Screw Driver

14
2. Lift the locking tab from the slot on the engine cover.
See Figure 23.
3. Slip the starter rope through the slot in the debris
screen. See Figure 24.
Figure 23
Locking Tab
Slot
Figure 24
Starter Rope
Slot

22” Trimmer Mower
15
4. Push slightly on the back of the debris screen to
unlock the rear tab from the engine cover.
5. Lift the screen off of the engine. See Figure 25.
6. Clear all debris from the screen and from the starter
housing on the engine.
7. Install the screen by following the previous step in
reverse order.
Figure 25

16