Alltech KEENAN MechFiber380+ User manual

Operators Manual
KEENAN MechFiber380+
Effective from models MF38N107
Revision E01 November 2022 EN

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 1
CONTENTS

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 2
SECTION CONTENTS PAGE
Part I (Service and maintenance, MechFiber380+ model)
1 Introduction 3
1.1 Purpose of this manual 3
1.2 Maintenance checklist 3
1.3 Chains 5
1.4 Oil level 7
1.5 Chain tensioning (540 RPM driveline) 8
1.6 Chain tensioning (1000 RPM driveline) 10
1.7 Greasing 11
1.8 Blade maintenance 14
1.9 Shear bolts 14
1.10 Nuts and bolts 14
1.11 Tyres 15
1.12 Hitch height adjustment 16
1.13 Specifications 17
1.14 Soda grain 17
Part II (Parts list)
2 Parts list 18
2.1 Chassis parts 19
2.2 Front cover parts 20
2.3 Standard feed-out tray parts 22
2.4 Fold-down tray parts (OE option) 24
2.5 Rear parts 27
2.6 VFC door parts 28
2.7 VFC door indicator parts 29
2.8 Driveline parts 30
2.9 Rotor and paddle parts 34
2.10 Auger parts 36
2.11 Body sealing parts 37
2.12 Body blade parts 38
2.13 Weighing system 39
2.14 Hydraulic system parts 40
2.15 Axle parts 41
2.16 Ancillary parts 42
Part III (Annexes)
3 Annexes 43
3.1 EC Declaration of Conformity 43
3.2 UK Declaration of Conformity 44
3.2 International Patents 44
Part IV (Contact details)
4 KEENAN contact details 45
4.1 Contact details 45
Contents: MechFiber380+ service and maintenance section
The MechFiber380+ operator’s manual presents information on model-specific maintenance, specifications and
spare parts.

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 3
Part 1: Service and maintenance, MechFiber380+
model
1 Introduction
1.1 Purpose of this manual
This manual has been designed to present the specific information you need to operate and
maintain the KEENAN MechFiber380+ model. Further information on general service and
maintenance is included in the general KEENAN MechFiber operator’s manual.
WARNING:
Prior to carrying out any maintenance on the machine, always ensure that the
tractor engine is stopped, and disconnect the P.T.O. and hydraulic hoses from
the tractor. Observe safety precautions at all times when working on the
machine. Read Section 4 in the general machine information manual on safety
before attempting to work on the machine.
1.2 Maintenance checklist
Daily
Cleaning:
Clean all old feed from around the body to prevent corrosion
and damage to the paint.
VFC door:
Before using the machine, check that the door opens and shuts
fully and operates smoothly.
Wheel nuts:
Check the torque settings.
Oil sump:
Check the oil level, and replenish with Total/Finol Chainac MP oil
as required.
Weekly (40 hours)
PTO input shaft:
Grease the universal joints (two fittings) and the sliding half shafts
(smear grease on surfaces). For further information, please refer
to the PTO Maintenance Booklet supplied with the PTO.
Drive (gear) box:
Grease the drive input-shaft bearings (two fittings).
Rotor bearings:
Grease the front and rear rotor bearings (two fittings).
Feed discharge auger:
Grease the front and rear auger bearings (two fittings).
Idler shaft:
Grease the front and rear idler shaft bearings (two fittings).
Drive chains:
Check the condition of the primary and secondary chains.
Chain tensioners:
Grease the pivot points on the primary and secondary chain
tensioner mechanisms.

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 4
VFC door:
Grease the door’s hydraulic cylinders (four fittings) and the slide
plates (smear food-grade grease on surfaces). The recommended
grease is Ceran FG, supplied by TOTAL Lubricants, or similar food
and feed industry-grade grease.
Chassis:
Grease the hitch pivot tube (where the swivel hitch is fitted).
Single axle:
Grease all six pivot points listed below:
-Two on each brake rod (four in total)
-One on each brake arm (two in total)
Tandem axle (if fitted):
Grease all 14 pivot points listed below:
-Two on each brake rod (eight in total)
-One on each brake arm (four in total)
-One on each spring bogie pivot pin (two in total)
Axle U-bolts:
Check axle U-bolt torque settings (tandem only).
Tyres:
Check that tyres are inflated to the recommended pressures, and
make sure the wheel nuts are tight.
Monthly
Bale handler:
Grease each tine pivot and check the tines for looseness.
Check tine buffers for cracks, splits or degradation.
Yearly (end of season or 450 hours)
Drive system:
Open oil bath drain bung and drain off existing oil. Wash off all dirt
and old oil using paraffin, then dry. Refill bath with new oil to
required level (see Section 1.5) and run machine for 5 to 10 minutes
to ensure that all chains have been lubricated.
Overall machine:
Before storage, wash the complete machine, then grease or oil all
weekly lubrication points as outlined above. Open the drain bung
in the mixing hopper. Check tyre pressures. Store the machine
under a cover or tarpaulin, if possible.
Electronic weigh-box:
If the machine is to be stored, remove the weigh box unit from the
machine and keep it in a dry place. Lightly grease the load cell
cable connector end and place it into a plastic bag.
Wheels:
Remove and inspect wheel hub. Replace worn parts, redress and
re-fit.
Blades:
Blades need to be kept sharpened. This will have to be done
without taking the temper from (i.e., overheating) the blades. If
the machine is operated with blunt blades, it will place major
stress on the drive system. Blades may have to be replaced when
it is not practical to sharpen them.
Table 1: Maintenance checklist
WARNING:
Due to hazards involved in entering the mixing chamber, it is recommended that all
blade replacement is carried out by a KEENAN-authorized service agent who is
specially trained to do so. Contact your local agent (see back cover for details).

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 5
1.3 Chains
Figure 1 (shows 540 RPM version)
Each week, check the condition of the chain tension arms and adjust as required. There are three
chains used on the KEENAN MechFiber380+ model. The primary drive chain (ASA100 Duplex)
drives the idler shaft, the auger shaft is driven by a chain (ASA120) from the idler shaft and the
secondary chain (ASA200) drives the rotor. All chains are tensioned by spring assemblies on the
slack side of the chain.
Table 2: MechFiber380+ drive chains
Primary drive chain
ASA100 Duplex
ASA100 Duplex
540 RPM Driveline
1,000 RPM Driveline
Links
110 including joiner
140 including joiner
Pitch (mm)
31.75
31.75
Pitch (inches)
1.25
1.25
Chain length (mm)
3,492.5
4,445.0
Chain length (inches)
137.5
175
Rotor drive chain
ASA200
Same as 540 RPM
Links
108 including joiner
Pitch (mm)
63.50
Pitch (inches)
2.5
Chain length (mm)
6858
Chain length (inches)
270
Auger drive chain
ASA120
Same as 540 RPM
Links
62 including joiner
Pitch (mm)
38.1
Pitch (inches)
1.5
Chain length (mm)
2362.5
Chain length (inches)
93
Rotor driven sprocket
Auger driven sprocket
Secondary drive chain
Secondary drive chain
tensioner spring and adjuster
Secondary drive chain
tensioner arm
Primary drive chain
Idler shaft and sprocket
Primary drive chain tensioner
arm and sprocket
Primary drive chain tensioner
spring and adjuster
Input drive shaft
Auger drive chain

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 6
Note: The ASA120 chain uses split pins in the joiner link, as shown, while the ASA200 chain
uses roll pins due to the high loads involved.
CAUTION:
Failure to maintain oil on the chains may reduce their working life by 90%. Chain
damage is not covered by factory warranty. See the warranty section for more details.
It is also essential to monitor and maintain the required chain tension. Chain tension
is adjustable for both the primary and secondary chains. (See section on chain
tensioning.)
CAUTION:
For the first month of ownership (i.e., during the chain bedding-in period), it is
recommended to check chain tension daily. (See section on chain tensioning.)
Figure 2: Chain joiner link

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1.4 Oil level
The oil reservoir (or sump) is located on the left side of the drive system. Each day, check the
level of the oil reservoir. Before checking the oil level, ensure that the machine is sitting level
(both front to rear and left to right). An oil-level viewing window has been fitted to the front panel
of the drive system and can be viewed through a recess in the lower face of the left-side front
cover. The recommended oil level should be midway along this window. This represents 30 litres
of oil in the sump. The minimum level is -15 mm from the centre, which represents an oil level
of 20 litres in the sump. The maximum level is +15 mm from the centre, which represents an oil
level of 30 litres in the sump.
If the oil level is low, top it up with chain-bar oil (the properties of which allow it cling to the
chains longer). Use Total/Finol Chainac MP if available or a suitable equivalent (volumetric mass
of 879 kg/m3 @ 15°C and viscosity rating of 150mm2/s @ 40°C). Do not use grease on the chains,
as it is unsuitable for the application and will not allow for the lubrication of the vital internal
parts of the chain.
Figure 3

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 8
1.5 Chain tensioning (540 RPM)
With use, the drive chains will extend slightly over time. To compensate for this, all KEENAN
MechFiber machines are fitted with a tensioner mechanism on the slack side of the chain. The
primary chain tensioner comprises a linear tension arm, which is held in position with a lower
connecting arm. A pull rod at the top of the tensioner arm passes through a shoulder plate on
the drive system housing. Tension is achieved by use of a compression spring seated above the
shoulder plate. The preload can be adjusted using the threaded upper spring seat.
The rotor & auger chains tensioners comprises a pivoting tension arm connected to a
compression spring strut. The preload can be adjusted using the threaded upper spring seat. In
order to prevent the chain from jumping and premature wear, the chain must be held at the
correct preload tension at all times and should be checked weekly.
1. Setting tension on the primary chain
The primary chain preload tension is set by adjusting the upper spring seat above the tensioner
arm. The spring assembly is fitted with an adjustment indicator, which uses the upper edge of
the spring as its marker. When it aligns with the green or “OK” portion of the decal, then the
tension is set correctly and does not require adjustment. But if the upper edge of the spring is
outside of this section or in the red, then adjustment is required. The decal arrow indicates the
direction in which to adjust.
The upper spring seat is an internally threaded sleeve that sits on the guide shaft. It has a
shoulder for the spring to sit against and a 40-mm A/F hexagon section at the top for adjustment.
A standard M20 nut is used to lock the seat in position.
To adjust, first remove the two wrenches from their storage location on the front left face of the
drive system reduction gearbox.
Swing the tensioner indicator downwards to allow full access to the spring seat nuts. Using the
40-mm wrench and the 30-mm wrench, open the locknut (top nut) and screw clear of the spring
seat. The spring seat can now be adjusted up or down to set the compressed length to 165 mm
(its free length is 200 mm). The upper edge of the spring should now be positioned in the centre
of the green section of the indicator. This provides the correct tension of approximately 70 kg to
the chain. To lock the setting, hold the spring seat in position with the 40-mm wrench and tighten
the locknut against it with the 30-mm wrench.
Figure 4: Primary chain tensioner spring setting (540 RPM driveline)

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 9
2. Setting tension on the Rotor and auger chain
The tension is set by adjusting the upper spring seat above the tensioner arm. The spring
assembly is fitted with an adjustment indicator that uses the upper edge of the spring as its
marker. When it aligns with the green or “OK” portion of the decal, then the tension is set
correctly and does not require adjustment. But if the upper edge of the spring is outside of this
section in the red, then adjustment is required. The decal arrow indicates the direction in which
to adjust.
The upper spring seat is an internally threaded sleeve that sits on the guide shaft. It has a
shoulder for the spring to sit against and a hexagon section at the top for adjustment. A similarly
sized hexagon nut is used to lock the seat in position.
To adjust, first remove the two wrenches from their storage location on the front left face of the
drive system reduction gearbox.
Swing the tensioner indicator downwards to allow full access to the spring seat nuts. Using the
wrenches, open the locknut (upper nut) and screw clear of the spring seat. The spring seat can
now be adjusted up or down to set the compressed length to 250 mm (its free length is 280
mm). The upper edge of the spring should now be positioned in the centre of the green section
of the indicator. This provides the correct tension of approximately 360 kg to the chain. To lock
the setting, hold the spring seat in position with one of the wrenches and tighten the locknut
against it with the other.
It is recommended to check the tension weekly in the first few weeks of operation, as the
chain, sprockets and tensioner “beds in” and may need to be adjusted
Figure 5: Rotor and auger chain tension spring setting (540 RPM driveline)

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1.6 Chain tensioning (1000 RPM)
Primary chain: This preload tension can be set by loosening the locknut and adjusting the upper
spring seat. The correct tension will be applied to the chain when the compression spring is
compressed to 165 mm, as shown below on the right.
Secondary chain: This preload tension can be set by loosening the locknut and adjusting the
upper spring seat. The correct tension will be applied to the chain when the compression spring
is compressed to 165 mm, as shown below on the left.
Figure 6: Primary & secondary chain tensioner spring setting (1000 RPM driveline)
Rotor and auger chain: This preload tension can be set by loosening the locknut and adjusting
the spring seat. The correct tension will be applied to the chain when the compression springs
are compressed to 250 mm, as shown below.
Figure 7: Rotor and auger chain tension spring setting (1000 RPM driveline)

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1.7 Greasing
The KEENAN MechFiber380+ is fitted with a 10-port central greasing manifold as standard,
located at the upper left side of the machine inside the front cover. It allows for the greasing of
all the inaccessible grease points of the drive system of the machine from that one location.
The tables below outlines the points where greasing should be practiced at regular intervals and
where particular grease points are located.
1. Bearings
Grease point
2
Grease point
3
Grease point
5
Grease point
4
Grease point
6
Grease point
7
Grease point
8
Grease point
12
2. Pivot points
Pivot point
11
Pivot point
10
Pivot point
9
Pivot point
1
3. VFC-door
Check that the VFC-door is able to move freely each day and grease external slides as
appropriate.
Pivot point
16

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Figure 8: Front greasing points 1000 RPM
Figure 9: Chassis grease points

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 13
Figure 10: Rear grease points

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 14
1.8 Blade maintenance
Blade sharpening and/or replacement:It is recommended that only KEENAN-trained and/or
qualified maintenance personnel should perform this task.
Blades need to be kept sharp. Blunt blades will increase power requirements. Sharpening
must be done without taking the temper from the blades (i.e., without overheating). Blades can
be sharpened many times, but when they reach the point where this is no longer practical, they
must be replaced.
1.9 Shear bolts
The following are the recommended shear bolts to be used with the KEENAN MechFiber380+.
Table 3: Shear bolt size and grade
1.10 Nuts and bolts
1. After the first day, and regularly thereafter, inspect wheel nuts and tandem-axle U-bolts
(where fitted).
2. After the first week, and each week thereafter, check all nuts and bolts, including bearing
nuts, for tightness.
General torque
Table 4: General torque for wheel studs
Table 5: Recommended torque for U-bolts for tandem axles (where fitted)
Machine type
PTO shaft
Shear bolt
Colour code
540 RPM input
T80 and V80
M12 x 70 x 5.6
Blue
1000 RPM input
T60 and V60
M10 x 60 x 4.6
Green
CAUTION:
Failure to use the correct grade of shear bolt can result in overload failure of the
machine and will invalidate your warranty.
Stud/bolt type
FT/LB
N.M
M22
335
450
M20
260
350
M18
200
270
U-bolt diameter (mm)
Tightening torque (Nm)
18
230
22
450
24
500
27
600

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 15
Figure 11: U-bolt position on bogie axle
1.11 Tyres
1. Each week, check the tyres for wear and damage.
2. Each week, check the tyre pressure. Optimal tyre pressures are shown in Table 6.
This information is given as guidance. If in doubt, please contact your KEENAN service partner.
WARNING:
When refitting and re-inflating tyre/wheel assemblies, a safety cage should be used
to prevent possible injury. Incorrectly fitted tyres are dangerous. Please make sure
tyre repairs are carried out by experienced tyre fitters.
Type
Bar
PSI
385/65 R 22.5
9.0
132
385/55 R 22.5
9.0
132
445/45 R 19.5
9.0
132
Table 6: Tyre pressure

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 16
1.12 Hitch height adjustment
The hitches of the KEENAN MechFiber380+have been designed to allow for a number of various
hitch height options with the same components used. The hitch height is normally selected for
the application and set at the factory per the options below.
The main standard hitch assembly is a bolt-on assembly, and once the main setting is completed
at the factory, it may also be adjusted on-farm by moving the assembly up or down within the
bolt holes or turning the complete hitch over, as it is suitable to operate facing either way up.
Note:
1: A minimum of four M20 x 100-mm grade 8.8 bolts must be used to secure the swivel ring hitch and the
clevis hitch to the drawbar.
2: Care must be taken when adjusting the hitch height so that there is adequate PTO clearance and that
there is enough ground clearance below the stand.
Figure 12.1: Standard hitch adjustment
Figure 12.2: Clevis hitch adjustment

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 17
1.13 Specifications
Table 7: Machine weights
1. Weights may vary depending on the exact specifications.
1.14 Soda grain
Additional safety instructions and warnings are available and covered in the soda grain leaflet,
which should be read carefully before soda-treating grain. When you are finished treating the
grain, clean out any remaining material in the mixing and/or auger chamber by loading in 200–
300 kg of silage or 50 kg of straw, and allow the machine to mix before unloading in the normal
manner.
Note that when mixing soda grain, the maximum gross load that can be mixed in the KEENAN
MechFiber380+ is 7,500 kg.
The soda-grain process can be completed using a KEENAN mixer, but before completing
treatment on your farm, make sure you are adhering to the local animal feed legislation and
health and safety guidelines involving the treatment of grain.
Model
MechFiber380+
Non-Bale Handler
Bale handler
Unladen
kgs
12,750
13,750
lbs.
28,110
30,314
Payload
kgs
9,000
lbs.
19,840
Gross
kgs
21,750
22,750
lbs.
47,950
50,154

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 18
Part II: Parts list
List of abbreviations:
P/N Part number
Qty Quantity
ID Inner diameter
OD Outer diameter
N/A Not applicable
c/w Complete with

KEENAN MechFiber380+ Operator’s Manual Rev E01 July 2022 19
2.1 Chassis parts
Table 8: Chassis
Item
P/N
Qty
Description
1
702309
4
Wheel rim 11.75” x 22.5”, 10 stud
2
702774
4
385/55 R 22.5 remould tyre
3
705949
2
2,300-mm x 130-mm 10 stud straight axle (ADR)
4
705970
2
Suspension assembly (ADR)
5,7,11
FP160-001-0095
1
Hose holder assembly arm
6
FP300-001-0089
2
Handbrake assembly
8
702038
1
Handbrake cable
9
N/A
4
Brake arm, part of axle
10
N/A
4
Brake ram, part of axle
12
FP380-001-0024
1
Hitch assembly
13
700290
4
Bolt M20 x 100-mm (grade 8.8)
14
700733
8
M20 flat washer
15
700305
4
M20 locknut
14
700729
16
M10 flat washer