Manual 874 E
Manual 874 E
Contents
Monark Exercise AB ��������������������������������������� 4
Product Information ��������������������������������������� 5
Facts��������������������������������������������������������������������� 5
Serial number�������������������������������������������������������� 5
Operating Instruction ������������������������������������� 6
Workload device��������������������������������������������������� 6
Power measurement��������������������������������������������� 6
Cycle adjustments������������������������������������������������� 6
Computer specifications���������������������������������������� 7
Computer Instruction��������������������������������������������� 7
Adjusting the brake cord/belt tension�������������������� 8
Heart Rate ������������������������������������������������������������ 8
Trouble shooting guide ���������������������������������� 9
Service ����������������������������������������������������������� 10
Warning��������������������������������������������������������������� 10
Warranty������������������������������������������������������������� 10
Service check and maintenance������������������������� 10
Batteries�������������������������������������������������������������� 11
Crank bearing����������������������������������������������������� 11
Flywheel bearing������������������������������������������������� 11
Transport������������������������������������������������������������� 11
Replacement of brake belt���������������������������������� 11
Brake belt contact surface���������������������������������� 11
Chain 1/2“ x 1/8“������������������������������������������������� 12
Freewheel sprocket��������������������������������������������� 13
Spare parts ���������������������������������������������������� 14
Important
Read the manual carefully before using the cycle
and save it for future use.
2012 MONARK EXERCISE AB, Vansbro, Sweden
Monark Exercise AB
Monark has 100 years’ experience of bicycle production. The Monark tradition
has yielded know-how, experience, and a real feel for the product and quality. Since
the early 1900s, Monark’s cycles have been living proof of precision, reliability,
strength and service. These are the reasons why we are now the world leader
in cycle ergometers and the market leader in Scandinavia in transport cycles.
We manufacture, develop and market ergometers, exercise bikes, transport bikes and
specialized bicycles. Our largest customer groups are within health care, sports medicine,
public authorities, industry and postal services.
For more information: www.monarkexercise.se
4
Monark 874 E
Product Information
Facts
Congratulations on your new Ergometer!
•
•
•
•
•
•
•
The Monark Ergometer model 874 E is a safe, easyto-use bike for fitness testing and work tests. It has
a braking system, of which workload can be set by
weights in a weight basket. The patented weight basket
system does not require calibration. The precision of
the weights ensures that the workload is correct.
Large, well-balanced flywheel 20 kg (44 lbs)
Adjustable seat height
Adjustable handlebar with quick release lever
Stable frame, solid steel tube
Powder painted
Wheels for easy transport
Electronic display with heart rate
Width
517 mm (20,3”) at handlebar
640 mm (25”) at support tubes
Length
1120 mm (44”)
NOTE!
Use of the product may involve considerable
physical stress. It is therefore recommended
people who are not accustomed to cardio or
do not feel completely healthy to first consult a
physician for advice before use.
Height
945-1295 mm (37,2-51”) at handlebar
780-1105 mm (30,7-43,6”) at seat
Weight
57 kg (127 lbs) (without weights)
Max user weight 250 kg (551 lbs)
Included
• Chestbelt
• Weight kit consisting of:
4 pc. 0,1 kg
1 pc. 0,5 kg
4 pc. 1,0 kg
Serial number
The serial number of your Ergometer is placed
according to fig: Serial number.
1
Fig: Serial number (1)
Monark 874 E
5
Operating Instruction
Workload device
Through cycling supplies the test person kinetic
energy to the flywheel. The flywheel is then braked
by means of a brake belt/cord which runs around the
flywheel. The workload is changed either by using
other pedalling speed or by increasing or decreasing
the tension of the brake belt/cord against the flywheel
by place weights in the weight basket. The weights are
in sizes 1 kg, 0.5 kg and 0.1 kg. This makes it possible
to vary the workload from 1 kp up to maximum 11
kp in steps of 0.1 kp.
1
NOTE: 1 kg is the lowest work load that can be set as
this is the weight of the basket itself. A weight basket
that only weighs 0.5 kg is available as an option.
Fig: Workload device
1) Weight basket with weights
Power measurement
The cycle is designed to measure the power on the
flywheel, because tests/protocols are made for it (for
example Åstrand’s and YMCA).
2
Cycle adjustments
Seat height should be adjusted to a comfortable
position. The appropriate height can be to have the
knee slightly bent when the sole of the foot is centred
over the pedal axle with the pedal to the bottom
position. To adjust the seat height loosen the lever(1)
on the seat tube. See fig: Adjustments.
The handlebar setting shall give a comfortable position
when cycling. During longer exercise sessions it is
recommended to occasionally change the handlebar
position. To adjust the handlebar loosen the quick
release lever(2). See fig: Adjustments.
min. 3”
3
1
Fig: Adjustments
1) Lever, seat post
2) Lever, handlebar
3) Inserted min. 3”
NOTE! The handlebar stem should be inserted into
the frame tube at least 3 inches (about 8 cm). This
measure is marked with “MAX” on the stem(3).
6
Monark 874 E
Computer specifications
Display
RPM
0 - 250
rev./min
HR
50 - 240
bpm
TIME
0:00-99:59
min:sec
SPEED
0 - 99
km/h or mph
DISTANCE
0.0 - 99.9
km or mile
FORCE
0.0 - 7.0
kp
CALORIES
0 - 999
kcal
WATT
0 - 7 x rpm
watt
Batteries:
1.5 V x 2, R6 (AA)
Storing temperature:
-10º C - +60º C
Operating temperature:
0º C - 50º C
Computer Instruction
The ergometer is equipped with a Fitness computer
showing pedal revolutions per minute (RPM), heart
rate in bpm (HR), exercise time in minutes and
seconds (TIME), cycling speed in km per hour or
miles per hour (SPEED), covered distance in km or
mile (DISTANCE). Furthermore the workload (kp =
weight basket + weights in kg) can be set which gives
a reading of burned calories (CAL) as well as power
(WATT) on the computer display. The energy is usually
expressed in kJ (kilojoule) or cal (kilocalorie, kcal).
One kcal is approx. 4.2 kJ. The power is depending on
the pedalling speed which makes it possible to adjust
the workload/power by increasing or decreasing the
pedalling speed.
Press any button or move the pedal to turn on the
meter. At the display for heart rate (HR) a heart
symbol is lit which means that the meter is trying to
find a pulse signal from an external source (chestbelt
with electrodes, Art. No: 9339-98). If the meter can
not find such a signal this HR function is automatically
turned off after 30 seconds. When the function is
turned off the heart symbol is not lit any more. The
heart rate function can be turned on again by pressing
a button.
The timer starts automatically when the pedals are
moved. Meter values for Time, Distance and Calories
can be set to zero by pressing the RESET button for
more than two seconds.
Example: The workload is 3 kg (weight basket 1 kg
+ 2 x 1 kg weight). Press the kp button to the left on
the meter. The lower display window is now flashing
and showing figures in kp. Increase or decrease in
steps of 0.1 kp by pressing the kp button (arrow up)
or the RESET button (arrow down) until the reading
is corresponding with the actual or desired kp values
(workload) from the weight basket. After that press
the CAL/WATT button to either show the CAL
or WATT figures. The watt reading on the display
depends on the pedalling speed. The watts can be
adjusted accordingly by increasing or decreasing the
pedalling speed.
Km/Miles
Km and km/h is the default setting from the factory.
If you want to make a setting in miles take the meter
out of the panel. Turn off the meter by taking out one
battery. On the back side is a switch with two settings
– 1 and ON. See fig: Switch km/miles. 1 is equal to
km and km/h and is the default setting. ON is equal to
mile and mph. Choose position and install the battery
again. Put the meter back again into the panel.
Do not expose the fitness computer to direct sunlight
or extremely high temperature. Do not use any
dissolvents when cleaning. Use only dry cloth.
To get correct readings for calories and watts the kp
value on the electronic meter has to be set to the same
value as the workload that is the weight of the basket
including the weights in it. The rubber plates are
included in the calibrated weight of the 1 kg weight
basket.
Monark 874 E
Fig: Switch km/miles (1)
1
7
Adjusting the brake cord/belt tension
Heart Rate
Check at first that the brake belt is lying correctly on
the flywheel brake surface. See fig: Brake cord and
Brake device.
A person's heart rate can be measured with a chest
belt that senses the electronic output of the heart. The
chest belt is standard equipment.
Put 4 kg in the weight basket(4). Rotate the flywheel
by hand. The basket shall now lift up so the distance
to the flywheel is at least 40 mm and maximum 60
mm. If this is not the case the brake belt has to be
loosened or tightened a little at the tension center. If
the basket is too low, shorten the belt somewhat. If
the basket is too high, lengthen the cord somewhat.
Fuss-free HR measurement requires that the belt is
correctly placed. When it is correctly fitted the logo
on the belt will be central and readable, outward
and upright, by another person. Before putting on
the belt, clean the skin where the belt is to be placed.
The chest belt should be secured at a comfortable
tension around the mid section, just below the breast
muscle, see Fig: Placement of the chest belt. Moisten
the electrodes before use, see Fig: Electrodes on the
back of the chest belt. To make contact with the HR
receiver on the bike, the distance should not be more
than 100 cm. It is especially important when first used
to identify the chest belt with the sensor, by standing
close to get the HR (maximum 60 cm).
Loosen the cord bracket(2) somewhat so that the
cord length can be adjusted. Turn the tension center
(3) approximately 45 degrees and after that tighten
the bracket again. Release the basket and check if
the measurements above are OK when the flywheel is
rotated by hand. Repeat the above if necessary.
NOTE!
To receive correct workload it is important to place the
weight basket according to the description above. If
the basket hangs too low it may touch the flywheel. If
the basket is too high, wrong workload may obtains.
NOTE!
Electromagnetic waves can interfere with the telemetry
system. Cellular phones are not allowed to be used
near the bike during test.
MONARK
Fig: Placement of the chest belt
1
1
Fig: Brake cord
2
3
Fig: Brake device
1) Stop
2) Cord bracket
3) Tension center
4) Weight basket
8
4
Monark 874 E
Fig: Electrodes on the back of the
chest belt (1)
Trouble shooting guide
Symptom
Probable Cause/Corrective Action
The display is not working.
Check that the batteries are OK.
No heart rate.
Check the chestbelt (battery). Wet the thumbs and place them on the
electrodes. A low clicking sound will appear near battery lid while you
click on the electrodes with one thumb.
Use another external HR monitor to check the belt.
Check that the chestbelt is positioned correctly on test person and tight
enough. Check that the electrodes are wet, in hard cases it is necessary to
use a contact gel or a mixture of water with a few drops of washing-up
liquid.
The level for HR signal can vary from person to person. Put chestbelt on
another known person who has a good pulse rendering.
Uneven heart rate.
Use an external unit, for example a pulse watch, to check if it also indicates
irregular pulse. If this is the case, there is probably disturbance in the room.
Magnetic fields from high voltage cables, elevators, fluorescent tube etc
can cause the disturbance. Other electronic equipment could be placed too
close.
If irregular pulse remains we recommend measuring HR manually. If HR
still remains irregular at workload test person’s health need to be examined.
There is a click noise with every pedal
revolution (increases with the weight).
The pedals are not tight. Tighten them or change pedals.
The crank is loose. Check, tighten.
The base bearing is loose. Contact your dealer for service.
Scratching sound is heard when pedalling. Check that the carriage block is taken off and that none of the covers is
scratching.
There is a click noise and a squeak noise
when pedalling.
Loosen the chain.
Monark 874 E
9
Service
Service check and maintenance
Note that the text about service and maintenance is
universal and that all parts may not be relevant to
your bike.
It is important to carry out a regular service on your
ergometer, to ensure it is kept in good condition.
Service action:
Warning
Make sure the voltage indicated on the appliance
corresponds to the local mains voltage before making
connections.
Warranty
EU countries - Private use
If you are a consumer living in the EU you will have
a minimum level of protection against defects in
accordance with EC Directive 1999/44/EC. In short,
the directive states for that your Monark Dealer will
be liable for any defects, which existed at the time of
delivery. In case of defects, you will be entitled to have
the defect remedied within a reasonable time, free of
charge, by repair or replacement.
• We recommend isopropyl alcohol to disinfect the
surface of the bike. Use a damp, but not wet cloth
to clean the surface you wish to disinfect.
• Clean and lubricate your Ergometer weekly.
• Periodically wipe the surface with a rust
preventative, especially when it has been cleaned
and the surface is dry. This is done to protect the
chrome and zinc parts as well as the painted parts
(4 times per year).
• Check that pedals are firmly tightened. If not, the
threading in the pedal arms will be damaged. Also
check that the pedal arms are firmly tightened on
the crank axle, tighten if necessary. When the
Ergometer is new it is important to tighten the
pedals after 5 hours of pedalling (4 times per
year).
• Check that the pedal crank is secure to the crank
axle (4 times per year).
EU countries - Professional use
Monark Exercise products and parts are guaranteed
against defects in materials and workmanship for a
period of one year from the initial date of purchase
of the unit. In the event of a defect in material or
workmanship during that period, Monark Exercise
will repair or replace the product. Monark Exercise will
not, however, refund costs for labour or shipping.
• Be sure that the pedals are moving smoothly, and
that the pedal axle is clear of dirt and fibres (4
times per year).
Other countries
Monark Exercise products and parts are guaranteed
against defects in materials and workmanship for a
period of one year from the initial date of purchase
of the unit. In the event of a defect in material or
workmanship during that period above, Monark
Exercise will repair or replace (at its option) the
product. Monark Exercise will as above for labour
or shipping.
• Check that pedals, chain and freewheel sprocket
are lubricated (2 times per year).
• When cleaning and lubricating be sure to check
that all screws and nuts are properly tightened
(twice a year).
• Check that the chain is snug and there is no play
in the pedal crank (twice a year).
• Be sure that the brake belt does not show significant
signs of wear (twice a year).
• Check that the handlebars and seat adjustment
screws are lubricated (twice a year).
• Be sure that all moving parts, crank and flywheel
are working normal and that no abnormal play
or sound excsists. I.e. play in bearings causes fast
wearing and with that follows a highly reduced
lifetime.
• Check that the flywheel is placed in the center and
with plane rotation.
10
Monark 874 E
Batteries
If the meter is battery-operated, the batteries are in
a separate package at delivery. If the storing time
has been long the battery power can be too low to
make the computer act correctly. Batteries must be
changed.
Alt. 3: To loosen the belt on other bikes remove all
possible tension. Observe how the belt is connected.
Take it apart and remove it from the bike. Attach
the new brake belt and assemble the bike in reverse
order.
Crank bearing
NOTE: When replacing the brake belt it is
recommended to clean the brake surface. See ”Brake
belt contact surface”.
The crank bearing is greased and normally requires
no supplementary lubrication. If a problem arises,
please contact your Monark dealer.
Flywheel bearing
The bearings in the flywheel are greased and do not
normally require maintenance. If a problem arises,
please contact your Monark dealer.
Transport
At transport the brake belt should be tightened to
prevent it from falling off the flywheel.
Brake belt contact surface
Deposits of dirt on the brake belt and on the contact
surface may cause the unit to operate unevenly and will
also wear down the brake belt. The contact surface of
the flywheel should be smoothed with fine sandpaper
and any dust removed with a clean dry cloth.
Remove any covers and loosen the tension on the
brake belt. Smoothe with fine sandpaper. This is
easier to perform if a second individual cautiously
and carefully pedals the cycle.
Irregularities on the brake belt contact surface are
removed by means of a fine sandpaper or an abrasive
cloth. Otherwise unnecessary wear on the brake belt
may occur and the unit can become noisy.
Replacement of brake belt
To replace the brake belt remove covers if necessary.
Make sure that the belt is loose.
Alt. 1: To loosen the belt on pendulum bikes with a
motor, turn the power on and move the pendulum
to 4 kp. Hold it there until the brake belt is loose.
Observe how the belt is connected. Take it apart and
remove it from the bike. Attach the new brake belt
and assemble the bike in reverse order.
Alt. 2: To loosen the brake cord on cycles with a weight
basket set the basket to its upper position. Loosen the
lock washer that is holding the cord and remove it
from the tension center. Loosen or cut off the knot on
the other end of the cord and then remove the whole
cord from the bike. When assembling a new brake
cord, first enter one end into the hole in the tension
center, tie a knot and let the knot fall into the bigger
part of the hole. Lock the end of the cord with the
lock washer.
Always keep the brake belt contact surface clean and
dry. No lubricant should be used. We recommend
replacing the brake belt when cleaning the contact
surface. In regard to assembly and adjustment of the
brake belt, see ”Replacement of brake belt”.
Fig: Brake belt contact surface
Monark 874 E
11
Chain 1/2“ x 1/8“
It is strongly recommended to keep the chain clean.
Dirt build-up on the chain will cause excess wear. A
chain lubricant and solvent for normal road bikes
may be used.
Check the lubrication and tension of the chain at
regular intervals. In the middle of its free length the
chain should have a minimum play(3) of 10 mm (1/4
inch). See fig: Chain adjustments. When the play in the
chain is about 20 mm (3/4 inch) it must be tightened
otherwise it will cause abnormal wear of the chain and
chainwheels. Because of this it is always recommended
to keep the chain play as little as possible. Loosen the
hub nut(2) on both sides and tense the chain with the
chain adjuster(1) when needed.
2
1
3
When the chain has become so long that it can no
longer be tightened with the chain adjusters it is worn
out and should be replaced with a new one.
Fig: Chain adjustments
1) Chain adjuster
2) Hub nut
3) Chain play
To adjust or replace the chain remove frame covers if
necessary.
To adjust the chain the hub nuts(2) should be
loosened. Loosening or tightening the nuts on the
chain adjusters(1) will then move the hub and axle
forward or backward. Adjust according to above
recommendation. Then tighten the nuts on the hub
axle again. See fig: Chain adjustments.
To replace the chain, loosen the chain adjuster as much
as possible. Dismantle the chain lock(6) and remove
the chain. Put on a new chain and assemble the chain
lock. The spring of the chain lock should be assembled
with the closed end in the movement direction(5) of
the chain. Use a pair of tongs for dismantling and
assembling the spring(4). See fig: Chain replacement.
NOTE: At assembly, the flywheel has to be parallel
with the centerline of the frame otherwise the chain
and chain wheels make a lot of noise and wear out
rapidly.
Adjust chain adjusters to allow chain play according
to above. Tighten hub nuts firmly. Replace frame
covers.
12
Monark 874 E
5
6
4
Fig: Chain replacement
4) Lock spring
5) Movement direction
6) Chain lock
Freewheel sprocket
When replacing the freewheel sprocket remove frame
covers if necessary. Dismantle the chain as described
in part ”Chain 1/2” x 1/8” ”.
Loosen the axle nuts and lift off the flywheel. Remove
the axle nut, washer, chain adjuster and spacer on the
freewheel side. Place the special remover (Art. No:
9100-14) in the adaptor and place the spacer and axle
nut outside. See fig: Special remover. Replace sprocketadaptor and assemble the new parts in reverse order
according to the above.
NOTE: Do not tighten the axle nut completely. It
must be possible to loosen the adaptor-sprocket half
a turn.
The sprocket should be lubricated with a few drops of
oil once a year. Tilt the cycle to make it easier for the
oil to reach the bearing. See fig: Lubrication.
Fig: Lubrication
Fig: Hub assembly
Fig: Special remover
(Art. No: 9100-14)
Monark 874 E
13
Spare parts
25
24
29
10
21
9
26
28
20
19
18
17
16
10
11
14
13
12
30
27
11
15
23
10
22
31
32
9
33
34
35
8
36
2
7
38
39
1
49
3
48
4 6
5
40
42
47
41
37
43
46
45
From serial number: WBK 265820 C
44
Pos.
Qty.
Art. No.
Description
Pos.
Qty.
Art. No.
1
1
9301-15
Support tube, front
25
1
9126-72
Description
2
1
9301-16
Support tube, rear
26
1
9100-180
-Lever M8
3
4
9328-51
Plastic cap, blue
27
1
9300-291
-Expander wedge
4
4
9328-26
Rubber foot
28
2
5675-9
5
1
9328-37
Transport wheel compl. (pair)
29
1
9394-71
Frame cover, left
6
4
5845
Locking nut M8
30
1
9384-45
Belt control
7
1
9300-55
Chain 1/2” x 1/8”, 116 l
31
1
9374-41
Instrument cover
8
2
9300-12
Screw MVBF M8x16 mm
32
1
9374-9
-Handgrip (pair)
Screw
Front frame
9
1
9300-220
Pedal, pair
33
1
9374-29
10
1
9300-207
Pedal strap, pair
34
1
5843-9
11
2
8523-2
Dust cover
35
1
9302-28
12
2
8523-115
Screw M6S 8.8 M8 x 20 FZB
36
1
9300-3
13
1
9326-164
Magnet
37
1
9300-24
14
1
9300-430
Steel crank set, complete
38
1
9300-17
-Bush, 23 mm
15
1
8966-175
BB cartridge bearing, complete
39
1
9300-18
-Axle
1
9300-133
Locking screw, complete set
40
3
91001-6
-Bearing 6001-2z
16
1
9300-122
-Locking knob
41
1
9106-14
-Connection
17
2
9300-134
-Pressure washer
42
1
9106-13
-Sprocket
18
1
9300-138
Saddle post
43
1
9000-12
19
1
9300-123
Top cover
44
1
5683
20
1
9300-115
Bushing for saddle post
45
10
9306-12
21
1
4994-5
Saddle
46
2
5673-9
1
9300-114
22
1
8966-176
23
1
9374-60
24
1
9300-280
14
-Saddle bracket
Weight holder
Nut M6
Plastic plug
Brake wheel, complete
Wheel suspension compl. set
-Chain adjuster (pair)
Screw M5x75 mm
Plastic plug
Screw M5x12 mm
47
1
5681
Support casing for BB-bracket
48
1
9374-70
Frame cover, right
Bracket for frame
49
3
5671-19
Screw M5x20 mm
Handlebar, complete
Monark 874 E
Screw M5
8
9 10 11 12 13
6
10
14
15
9
7
15
5
18
4
3
2
16
17
1
19
20
21
22
23
24
26
25
From serial number: WBK 265820 C
Pos.
Qty.
Art. No.
1
1
9326-162
2
1
9326-166
3
2
4
1
5
1
6
1
7
8
Description
Pos.
Qty.
Art. No.
Description
Sensor
15
2
14379
Sensor holder
16
1
5844
Nut M8
9326-59
Screw
17
1
5864
Washer M8
9326-263
Cable
18
1
14374
9374-172
Holder for meter 70x16 mm
19
1
9374-12
PVC cover
9374-170
Electronic meter
20
1
9324-26
Belt
1
9374-171
Holder for meter 16x16 mm
21
1
9374-29
Weight holder, 1 kg
1
9374-20
Tension device, complete
22
4
9102-30
Weight, 0,1 kg
-Screw M6 x 16 mm
Screw M8 x 160 mm
9
2
9127-37
-Spacer 8.5 x 12 x 13
23
1
9102-27
Weight, 0,5 kg
10
2
19088-6
-Bearing 608-2z
24
4
9102-26
Weight, 1 kg
11
2
5862
-Washer
25
1
9384-47
Belt set
12
3
14323-9
-Screw M6 x 16 mm
26
1
9301-5
13
1
9324-70
-Lock washer
1
9339-98
Chestbelt
14
1
9374-21
-Stop
1
9300-365
Software
Monark 874 E
Frame
15
Version 1206
Art. No: 7950-306
KROONS VÄG 1, SE-780 50 VANSBRO, SWEDEN | WWW.MONARKEXERCISE.SE | TEL: +46(0)281 59 49 40 | FAX: +46(0)281 719 81
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