terrasaw TS-400, TS-500, TS-700B, TS-WSA Operator Owner's Manual

MODELS TS-400, TS-500, TS-700B, TS-WSA

For your safety please read all safety precautions in this

manual before operating your Terrasaw.

OPERATOR’S /

OWNER’S MANUAL

Sept 2013

Thank you for purchasing a patented award-winning TerrasawTM, the world’s
most portable power trenching tool.

Your Terrasaw provides you with quick, easy and versatile trenching when
and where you need it! The Terrasaw digs rapidly with minimum ground and
turf disturbance, which enables a very quick site cleanup.

Before putting the Terrasaw to use, please read and follow all safety,
assembly, operating and maintenance instructions.

Terrasaw Industries has a policy of ongoing product innovation and

improvement. We therefore reserve the right to modify specications, design
and conguration without notication. In some instances product may differ

slightly from that illustrated.

© 2013 Terrasaw Industries Ltd.

Contents Page

Important Safety Information 2

Assembly Instructions 3

Before You Start Trenching 7

Using Your Terrasaw

TM

:

Some Useful Tips 8

Special Situations 9

Fuel Information 10

Lubrication 11

Maintenance, Cleaning and Storage 11

Using Your Terrasaw

TM

Wheel Support Accessory 12

Service and Parts 13

Terrasaw

TM

Contact Details 13

Optional Digging Chain Tooth Patterns 14,15

Terrasaw

TM

Warranty 16

To prevent serious injury:

All operators of the Terrasaw must read and fully understand this Terrasaw
instruction manual before operation of the trenching unit.

All operators must use safety approved equipment as outlined by your local or
national safety codes. Safety foot, leg, eye and ear protection should be worn at all
times during operation of the Terrasaw trenching unit. In particular you must wear
sturdy safety boots, preferably steel-capped, and keep feet well clear of the digging
chain at all times.

Before you dig, check the location of all underground services, especially
electric cables. Electric shock can cause severe or fatal injury.

Check that the power head, including handles, chain brake and all safety features
are in good working order.

Ensure that Terrasaw is correctly tted to powerhead, chains are correctly tensioned,

and safety guards are in place. Before starting work, remove scabbard and inspect
the digging chain for any damage.

When starting power head, use the correct safety starting techniques as outlined in
your powerhead operators manual and ensure that the digging chain is clear of
contact with the ground or any other object. For extra safety when starting, apply

chain brake where tted. Be aware that the chain will otherwise be in motion as

soon as engine starts.
Important: Digging chain must be stationary when power head is at idle (refer to
power head operators manual for correct idle adjustment).

Maintain a rm footing and a good grip on the power head handles during digging.

We strongly advise trenching with the digging blade inclined back at a comfortable
angle (25 to 30 degrees from vertical) rather than vertical. This tool is designed
to dig to its designated depth when used at these angles. Digging with the blade
vertical should be avoided as it will bring the moving chain dangerously close to the
operator’s feet/legs and will also increase operator fatigue.

If you are trenching on a sloping surface, always stand on the downhill side of the
digging bar. In slippery ground conditions be particularly careful to maintain a rm
footing and stand so that a sudden slip or loss of balance will not bring you into
contact with the moving digging chain.

Minors should never be allowed to operate the Terrasaw.

Important Safety Information

2

Fig. 1

[Note that when correctly assembled, the digging
bar is centrally located and approximately in line with
rear handle of power head (Fig. 1), giving the best
possible balance and control.

1. Remove the powerhead chain side cover nuts
and remove the side cover.

2. Wind the slack adjuster to give maximum
slack.

3. Unscrew the drive chain guard-securing bolt
(Fig 2). Slide chain guard out of channel on

main block, by pushing rmly with the heel of

your hand.

3

Be aware that the digging blade may kick back if upper quadrant of the digging tip
contacts solid ground or any obstruction, in a similar manner to a chainsaw timber
blade.

When tuning or testing the Terrasaw, be sure to point the blade away in a safe
direction as chain will instantly rotate at high speed and may throw off mud, stones

etc. Always keep bystanders and small animals at a safe distance.

Ensure that you have no loose clothing etc. that may become entangled in the
digging chain. Be aware that guards may become heated by exhaust during use.

When transporting or storing the Terrasaw use the protective chain scabbard
supplied.

Assembly Instructions

4. Loop the supplied Terrasaw

TM

drive chain over the large sprocket
(Fig. 3).

5. Engage the drive chain with power
head drive sprocket, ensuring the
drive teeth are seated correctly
(Fig. 4).

Warning: Fitting drive chain with

too much tension will result in
the premature wear and possible
failure of the primary transmission
system.

6. Reassemble the power head side
cover to the power head ensuring
that the chain adjuster is engaged
with the Terrasaw bar and lightly
tighten retaining nuts.

7. Using a screwdriver, adjust the
drive chain so that the slack

is taken up and a light nger

pressure on the drive chain at
midpoint yields approximately half

a chain height deection. Once the
correct position is obtained, rmly

tighten side cover retaining nuts.

Re-check tension and repeat Step

7 if required.

Note: A new chain will require tensioning more frequently than one that has been
in use for some time. Check the tension of a new chain after only a few minutes
operation and thereafter at each refuelling or as soon as slack is apparent.
Remember: If adjustment is required ensure that the side cover nuts are re­tightened.

8. Using the aerosol chain wax provided apply a light spray while rotating the
chain by hand, refer also Lubrication page 11. DO NOT START ENGINE AT
THIS TIME.

4

Fig. 7

Fig. 8

Fig. 9

Fig. 6

9. Ret the Terrasaw drive chain

guard. With securing bolt drawn
back slide the chain guard into the
retaining channel on main block

and push rmly home with the heel

of your hand (Fig. 5). Re-tighten
the guard securing bolt.

10. Roll power head onto its right side
(on a surface that will not scratch
chain cover instructions, etc)
so that you have a clear view of
digging bar securing bolts. Using
the spanner provided undo and
set aside the two large securing

bolts and large at washer that

(will) attach the digging bar to the
main block of the Terrasaw (Fig.

6).

11. Hold the digging bar as shown
(Fig. 7), with the bar slot facing
towards the main block body.
Note: Digging bar is reversible,
but the digging chain direction is
critical (Fig. 8).

12. Loop the digging chain around
the nose sprocket of the digging
bar (Fig. 7). Note: The digging
chain must be assembled with
the directional notches on rear/
trailing edge of teeth as the chain
runs along the top of the digging
bar (Fig. 8). Important: Fitting
digging chain in reverse will cause
a dramatic loss of performance.

13. Holding the bar and chain in one
hand, loop the digging chain over
drive sprocket with the other hand.
Engage the slotted section of bar
to the matching raised section of
the main block and slide the bar to
lightly tension the chain (Fig. 9).

5