IBEX TM67C User manual

ASSEMBLY GUIDE
TM67C Drum Mower

ASSEMBLY GUIDE
2022-01.0 IBEX EQUIPMENT CO. 1
Contents
Scope and Purpose .................................................................................................................................................. 3
Introduction............................................................................................................................................................. 3
Uncrating................................................................................................................................................................. 5
Drum support arm................................................................................................................................................... 6
Spring arm installation............................................................................................................................................ 6
Swivel pin ............................................................................................................................................................... 8
Blade installation .................................................................................................................................................... 9
Guard installation.................................................................................................................................................. 10
Spring arm attachment .......................................................................................................................................... 14
Safety Release (Breakaway Bar) .......................................................................................................................... 15
Transport lock ....................................................................................................................................................... 16
Drum unit pivot lock and restrictor plate.............................................................................................................. 16
Gearbox PTO Guards............................................................................................................................................ 17
Jack stand .............................................................................................................................................................. 19
Driveline installation............................................................................................................................................. 19
Lubrication........................................................................................................................................................ 20
Completion checklist ............................................................................................................................................ 21
Figure 1 assembled TM67C drum mower front view............................................................................................. 3
Figure 2 rear of mower showing pivot pin orientation ........................................................................................... 4
Figure 3 Drum Mower in crate as shipped.............................................................................................................. 4
Figure 4 parts removed from crate shown here for reference................................................................................. 5
Figure 5 Bags of small hardware shown sorted ...................................................................................................... 5
Figure 6 parts to connect arm to drum.................................................................................................................... 5
Figure 7 drum support arm before attachment........................................................................................................ 6
Figure 8 spring arm with blade change tool............................................................................................................ 6
Figure 9 long pin goes through as shown ............................................................................................................... 7
Figure 10 spring attachment hardware shown with springs.................................................................................... 7
Figure 11 springs attached at both ends but not in tension..................................................................................... 8
Figure 12 swivel pin................................................................................................................................................ 8
Figure 13 install pin with hole to back.................................................................................................................... 9
Figure 14 installing blades with the blade change tool........................................................................................... 9
Figure 15 guard holders ........................................................................................................................................ 10
Figure 16 set of 8 nuts and bolts used to attach guard holders ............................................................................. 10
Figure 17 guard holders shown installed on both ends of the drum unit.............................................................. 11
Figure 18 set of nuts and bolts are for guards and shield plates ........................................................................... 11

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Figure 19 guards hang from the guard holders and are secured with hardware shown........................................ 11
Figure 20 three shield plates install on top of the 2 large guards with curtains.................................................... 12
Figure 21 shield plates shown located on top of guards ....................................................................................... 12
Figure 22 PTO shields .......................................................................................................................................... 13
Figure 23 hardware to attach PTO guards ............................................................................................................ 13
Figure 24 shields installed as well as PTO guard ................................................................................................ 13
Figure 25 hang 3 point hitch and connect to mower............................................................................................. 14
Figure 26 pin to attach spring arm through top cap.............................................................................................. 15
Figure 27 top cap and spring arm bolted in place................................................................................................. 15
Figure 28 breakaway protection arm in mow position ......................................................................................... 15
Figure 29 hardware for spring arm transport lock ................................................................................................ 16
Figure 30 spring arm transport lock shown installed and in transport position.................................................... 16
Figure 31 hardware for pivot restrictor plate installation ..................................................................................... 17
Figure 32 pivot restrictor plate shown installed but loosened 2 turns for mow position...................................... 17
Figure 33 larger, oval-shaped guard is installed on the front of the gearbox, facing the tractor .......................... 18
Figure 34 smaller PTO guard installed on the 90 degree gearbox, facing the drum unit .................................... 18
Figure 35 lift the three point assembly up and install the jack stand.................................................................... 19
Figure 36 driveline identification and connection guide ...................................................................................... 19

ASSEMBLY GUIDE
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Scope and Purpose
This guide is limited to the Ibex TM67C (Galfre model 170) drum mowers sold by Tractor Tools Direct. The
guide covers models manufactured in 2013 and forward.
This manual is a guide to aid in the assembly of the drum mower models listed above. Consult the operations
manual for instructions on usage and safety.
Introduction
The photograph in Figure 1 shows a TM67C drum mower assembled completely from the front. Figure 2 shows
detail from the rear of the unit.
Figure 1 assembled TM67C drum mower front view

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Figure 2 rear of mower showing pivot pin orientation
Figure 3 Drum Mower in crate as shipped
The drum mower will arrive in a wooden crate disassembled for shipment. You will need a forklift or a front
loader with the proper lift straps to unload and move it safely.

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Figure 4 parts removed from crate shown here for reference
Uncrating
To make a good start of this project, unpack everything to be sure you are not missing anything and to check for
shipping damage. It makes finding what you need easier if everything is organized into like groups.
Figure 5 Bags of small hardware shown sorted
Take the 2 bags of small hardware and separate into like groups.
Figure 6 parts to connect arm to drum

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Drum support arm
The drum support arm is held in place with the long pin shown in the middle photo in Figure 6 above.
Figure 7 drum support arm before attachment
The arm shown in Figure 6 is shown here ready to install the long pin.
Spring arm installation
The spring arm holds 2 extension springs in tension to transfer some of the weight of the drum unit to the tractor
through the 3 point hitch.
Figure 8 spring arm with blade change tool

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Place the long pin with 2 holes through the lower set of holes on the support arm as shown.
Figure 9 long pin goes through as shown
Use the 2 links, washers, and cotter pin to attach the springs to the mower end as shown.
Figure 10 spring attachment hardware shown with springs

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Attach the springs to the 3 point end of the spring arm with the eye nuts, threaded rods, nuts, and washers as
shown. Do not tighten yet as it will make assembly difficult later.
Figure 11 springs attached at both ends but not in tension
Swivel pin
Locate the swivel pin. This pin connects the three point hitch assembly and the support arm of the mower
together. The swivel pin allows the mower to swing back 90° for transport.
Figure 12 swivel pin

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Make sure the hole is to the back. Look at figure 2 to be certain you have it correctly oriented before
proceeding.
Figure 13 install pin with hole to back
Blade installation
Find the blades and separate them. Install them with the beveled edges face up.
Using the blade tool, pry open the drums and install the blade by fitting the hole of the blade over the pin inside.
Never put your hand or fingers inside the opened drum. The blade tool can slip off if it is raised too high.
Position the tool, raise the arm, install blade let the tool arm down. Be sure the blade is on the pin and swings
freely.
Figure 14 installing blades with the blade change tool
For correct balance, the blades should be replaced in sets. It’s always a good idea to keep at least one extra set
on hand during hay season.

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Guard installation
Locate the two guard holders that support the top guards and curtains.
Figure 15 guard holders
Locate the hardware used to attach the guard holders as shown in Figure 16.
Figure 16 set of 8 nuts and bolts used to attach guard holders

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Position the guard holders as shown and install.
Figure 17 guard holders shown installed on both ends of the drum unit
Locate the hardware used to install the shield plates. Please note that there may or may not be flat washers
included. The hardware can be installed with or without flat washers.
Figure 18 set of nuts and bolts are for guards and shield plates
Install the shields as shown in the following figures.
Figure 19 guards hang from the guard holders and are secured with hardware shown

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Figure 20 three shield plates install on top of the 2 large guards with curtains
Figure 21 shield plates shown located on top of guards
Having a second person help make it easier to access the top and bottom of the hardware. Use of a powered drill
also helps speed up the process.

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Figure 22 PTO shields
Figure 23 hardware to attach PTO guards
Figure 24 shields installed as well as PTO guard

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Spring arm attachment
Figure 25 hang 3 point hitch and connect to mower
The three point hitch is joined to the mower by the swivel pin. Lift the three point hitch above the swivel pin
and raise the pin and start it in the hole with plastic bushings. Little by little, lower the three point hitch so that
the pin is through the hole completely. The support arm was held up with a cut length of 2x4 board and can be
seen in figure 25 above. The red top cap with 2 holes is placed on top of the pin and the holes are aligned. Then
the spring arm (upper arm) is aligned so that all the holes in the pin, cap and arm are aligned and then the
threaded pin shown in Figure 26 is pushed through. Install the nut and just snug - it needs to be able to pivot.
The nylon retainer will keep it from backing off. The photo in Figure 27 shows the finished assembly.

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Figure 26 pin to attach spring arm through top cap
Figure 27 top cap and spring arm bolted in place
Safety Release (Breakaway Bar)
Figure 28 shows the breakaway arm holding the mower in the mow position. If the mower were to strike an
immovable object, the arm would release allowing the mower to fold back about 15 degrees to dissipate the
impact force. Consult the owner’s manual for details.
Figure 28 breakaway protection arm in mow position

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Transport lock
The mower comes with a plate (“transport lock”) that pivots and is meant to lock in place while the mower is in
transport position. During mowing, the transport lock should always be released. Install the transport lock
using the hardware shown in Figure 29. Figure 30 shows the transport lock in place.
Figure 29 hardware for spring arm transport lock
Figure 30 spring arm transport lock shown installed and in transport position
Drum unit pivot lock and restrictor plate.
The function of this part is to allow the drum section to pivot on the support arm within a controlled range. The
angle of pivot is kept in a safe range to keep the driveline from exceeding its working angle range and length.
During transport the mower is swung back and locked into place. This plate with the nut and handle shown in
Figure 32 is tightened so that the drum mower does not freely pivot while driving down the road. It is released 2
turns for mowing.

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Figure 31 hardware for pivot restrictor plate installation
Figure 32 pivot restrictor plate shown installed but loosened 2 turns for mow position
The pivot restrictor plate has 3 holes to accommodate different sizes of tractor. In most cases the bottom hole is
ideal. If the pin that goes through the slot is frequently bottoming out within the slot, try relocating it to a
different hole.
Gearbox PTO Guards
There are two remaining PTO guards. These guards are installed on the 90 degree gearbox. Install the larger,
oval-shaped guard on the front of the 90 degree gearbox, so that it is facing the tractor’s PTO. See Figure 33.

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Figure 33 larger, oval-shaped guard is installed on the front of the gearbox, facing the tractor
The smaller guard mirrors the one installed on the drum unit. It is installed as shown in Figure 34.
Figure 34 smaller PTO guard installed on the 90 degree gearbox, facing the drum unit

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Jack stand
To install the stand, lift the three point hitch enough to start the jack through the hole from the bottom and lock
it into place with the pin provided.
Figure 35 lift the three point assembly up and install the jack stand
Driveline installation
Figure 36 driveline identification and connection guide