GreenMech ECO STC150 Series User manual

SAFE-Trak models
Covering
Eco STC150
Arborist STC16-23
Arborist STC19-28
ChipmasterSTC220
Operators’ Manual

IMPORTANT NOTICE
TENSION OF MAIN
DRIVE FOR STC16-
23MT35 & STC150MT35
MUST BE CHECKED
AND RESET AFTER
THE FIRST 2-3 HOURS
OF OPERATION.
FAILURE TO DO SO
MAY INVALIDATE
WARRANTY.
INSTRUCTIONS TO CHECK AND
RESET TENSION ARE DETAILED IN
SECTION 6.9.

SAFE-Trak CONTENTS 1
SECTION:
1. Introduction and Purpose
2. Technical Specifications, Dimensions and Noise Level
3. Safety and Symbols
3.1 Ensure!
3.2 Never!
3.3 Always!
3.4 Safety controls and switches
3.5 Control cut-outs
3.6 'No Stress' system
3.7 Tracking controls
3.8 Symbols
4. Machine Preparation
4.1 Fuelling and parking
4.2 Infeed chute
4.3 Discharge chute
5. Operation
5.1 Pre-work checks
5.2 Starting machine
5.3 Moving machine
5.4 Starting Chipper
5.5 Stopping Chipper
5.6 Adjustable Feed roller control
5.7 Operating Hints
5.8 On Completion of Work
6. Maintenance
For Engine and Tracks please refer to separate manuals
6.1 Routine Maintenance schedule
6.2 Engine Oil
6.3 Coolant
6.4 Hydraulic Oil
6.5 Fuel level
6.6 Drive Belts
6.7 Disc Blades
6.8 Radiator
6.9 Steam Cleaning
6.10 Air Cleaner
6.11 Electrical Connections
©GreenMech Ltd - 1 - 06/06

SAFE-Trak CONTENTS 2
6.12 Battery
6.13 Bearings and pivots
6.14 Chipper Drive belt tension
6.15 Track Pump Drive Belts
6.16 Hydraulic connections
6.17 Mountings
6.18 Hydraulic Return Filter
6.19 Hydraulic Return Filter (Track Drive) STC220 only
6.20 Hydraulic Oil change
6.21 Fuses and No Stress system
6.22 Fault finding chart
6.23 Blade sharpening
7. Storage
7.1 Storage
7.2 Removal from storage
8. Disposal
9. Appendix
9.1 Hydraulic Circuit
9.2 Electrical Circuits
9.3 Certificate of Conformity
9.4 Risk Assessment
©GreenMech Ltd - 2 - 06/06

SAFE-Trak 1. INTRODUCTION AND PURPOSE 1-1
INTRODUCTION
This manual explains the proper operation of your machine. Read these instructions
thoroughly before operating and maintaining the machine. Failure to do so could result in
personal injury or equipment damage. Consult your GreenMech supplier if you do not
understand the instructions in this manual.
CAUTION! This symbol indicates important safety messages in this
manual. When you see this symbol, be alert to the possibility of injury to
yourself or others, and carefully read the message that follows.
We recommend that you keep this manual with the machine in the box provided. Note
here the serial number and quote it in any communications. This is important when
ordering spares. Remember to include all numbers and letters.
Serial Number
STC150
(STC16-23, 19-28
similar)
Serial
Number
STC220
Serial Number...................
Write in the number!
This manual covers the following engine driven self-propelled SAFE-Trak models.
ECO STC150MT35, Arborist STC16-23, Arborist STC19-28MT50, ChipMaster
STC220MT55
If in doubt, always quote the serial number in any communications. Where instructions are
significantly different between models, the section may be designated with a letter a or b.
(for example: 6.14a)
The information in this manual is correct at the time of publication. However, in the
course of development, changes to the machine specification are inevitable. Should you
find any information to vary from the machine in your possession please contact your
GreenMech dealer for up to date information.
The manual may contain standard and optional features and is not to be used as a
machine specification.
PURPOSE
CAUTION! This machine is designed solely to chip wood and must not be
used for any other purpose. The machine should only be used by trained
operators who are familiar with the contents of this instruction manual. It is
potentially hazardous to fit or use any parts other than genuine GreenMech
parts. These Wood Chippers are for Off Highways use only. GreenMech
Ltd disclaims all liability for the consequences of such use, which in addition voids the
machine warranty.
©GreenMech Ltd 1-1 05/06

SAFE-Trak 2. SPECIFICATIONS 2-1
Fig 2.1 Eco STC150MT35 SAFE-Trak Main features
Track controls
Infeed chute
Engine
cover
Feed roller pivot
Reset bar
Track leg
Control bar
Chi
pp
er disc cover
Discharge chute
TECHNICAL SPECIFICATION ECO STC150MT35 SAFE-Trak
Max capacity 150mm (6-inch) diameter
Infeed opening 800mm x 710mm
Throat size 155mm x 155mm
Chipping disc 500mm x 25mm
Speed 2400 rpm
Chipping disc-blades 2 Discs
Feed Rollers 2 x Hydraulic & Spring Tensioned
Power control No-Stress Electronic Feed Roller Controller
Power unit 35hp water cooled diesel
Fuel capacity 45Lt
Hydraulic capacity 45Lt
Length (maximum in work position) 3990mm
Length (minimum for transport) 3200mm
Width over body 1300mm
Track width 1300mm - 2130mm
Track size 250mm x 1440mm
Height 2084mm - 2400mm
Weight 1350Kg
Ground pressure 0.28kg/cm2
©GreenMech Ltd 2-1 05/06

SAFE-Trak 2. SPECIFICATIONS 2-2
Fig 2.2 Arborist STC16-23MT35 SAFE-Trak
Engine
Cover
Tracking
Controls
Reset Bar
Infeed Chute
Feed Roller Pivot
Track Leg
Control Bar
Chipper Disc Cover
Discharge Chute
TECHNICAL SPECIFICATION Arborist STC16-23MT35 SAFE-Trak
Max capacity 150mm x 230mm (6inch x 9inch)
Infeed opening 920mm x 820mm
Throat size 160mm x 230mm
Chipping disc 500mm x 25mm
Speed 2400 rpm
Chipping disc-blades 2/4 Discs
Feed rollers 2 x Hydraulic & Spring Tensioned
Power control No-Stress Electronic Feed Roller Controller
Power unit 35hp water cooled diesel
Fuel capacity 37Lt
Hydraulic capacity 45Lt
Length (maximum in work position) 3458mm
Length (minimum for transport) 2377mm
Width over body 735mm - 1090mm
Track width 736mm – 1589mm
Track size 250mm x 1440mm
Height 2305mm – 2410mm
Weight 1400Kg
Ground pressure 0.25kg/cm2
©GreenMech Ltd 2-2 05/06

SAFE-Trak 2. SPECIFICATIONS 2-3
Fig 2.3 Arborist STC19-28MT50 SAFE-Trak
Engine
Cover
Tracking
Controls
Feed Roller Pivot
Track Leg
Reset Bar
Infeed Chute
Control Bar
Chipper Disc Cover
Discharge Chute
TECHNICAL SPECIFICATION Arborist STC19-28MT50 SAFE-Trak
Max capacity 190mm x 280mm (7.5inch x 11inch)
Infeed opening 1200mm x 840mm
Throat size 190mm x 280mm
Chipping disc 600mm x 25mm
Speed 1500 rpm
Chipping disc-blades 4 Discs
Feed rollers 2 x Hydraulic & Spring Tensioned
Power control No-Stress Electronic Feed Roller Controller
Power unit 50hp water cooled diesel
Fuel capacity 60Lt
Hydraulic capacity 50Lt
Length (maximum in work position) 4100mm
Length (minimum for transport) 3500mm
Width over body 1320mm
Track width 1200mm – 2012mm
Track size 250mm x 1768mm
Height 2390mm – 2720mm
Weight 1800Kg
Ground pressure 0.26kg/cm2
©GreenMech Ltd 2-3 05/06

SAFE-Trak 2. SPECIFICATIONS 2-4
Fig 2.4 Chipmaster STC220MT55 SAFE-Trak Main Features
Control Bar
Chi
pp
er Disc Cover
Discharge Chute
Tracking Controls
Reset Bar
Infeed Chute
Track LegFeed Roller Pivot
Engine Cover
TECHNICAL SPECIFICATION CHIPMASTER STC220MT55 SAFE-Trak
Max capacity 220mm (9-inch) diameter
Infeed opening 1070mm x 870mm
Throat size 230mm x 230mm
Chipping disc 730mm x 30mm
Speed 1565 rpm
Chipping disc-blades 6 Discs
Feed rollers 2 x Hydraulic & Spring Tensioned
Power control No-Stress Electronic Feed Roller Controller
Power Unit 55hp water cooled diesel
Fuel capacity 44Lt
Hydraulic capacity 44Lt
Length (maximum in work position) 4300mm
Length (minimum for transport) 3530mm
Width over body 1330mm
Track width 1600mm – 2590mm
Track size 250mm x 1768mm
Height 2470mm – 2800mm
Weight 1880Kg
Ground pressure 0.27kg/cm2
©GreenMech Ltd 2-4 05/06

SAFE-Trak 2. SPECIFICATIONS 2-5
Noise
Noise levels vary depending on type of material being processed. Also duration of
operation is variable. Noise emission tests have been carried out and the guaranteed
sound power level is displayed on the CE plate as follows: Lwa 120dB
Minimise noise by switching to idle or stopping the engine whenever chipping is not in
progress.
Full details are included in the Risk Assessment in the Appendix.
CAUTION! Operators must wear appropriate ear protection. Bystanders must be
kept away from proximity of machine.
Lifting Points
All models have a central lifting point by the chipper disc cover and anchor points on the
corners of the chassis.
©GreenMech Ltd 2-5 05/06

SAFE-Trak 3. SAFETY 3-1
©GreenMech Ltd 3-1 05/06
3.1 ENSURE:
3.1.1 All Operators must be fully trained in
the use of their machine.
(Certificated Operator training courses are
available on request.)
3.1.2 The Operators Manual is read and
understood.
3.1.3 The enclosed HSE guidance notes
are read and understood.
3.1.4 These Wood Chippers are for Off
Highways use only.
3.1.5 The machine is positioned with the
body level.
3.1.6(a) The infeed chute (bottom control
bar) at least 600mm (23.62 inches)above
ground level (fig 3.1) .
3.1.6(b) The infeed chute (top control bar)
no more than 600mm (23.62 inches) above
ground level (fig 3.1)
3.1.7 All guards are fitted and in good
condition.
3.1.8 Blades are in good condition and
secure.
3.1.9 All blades are sharpened or replaced
in “Sets”.
3.1.10 All fasteners are checked regularly
for tightness.
3.1.11 Only “WOODEN” materials free of
nails etc., are fed into the machine.
3.1.12 Correct First Aid Kit including large
wound dressing is available on site.
3.1.12 Fire extinguisher is available on site.
3.2 NEVER:
3.2.1 Work on the machine until the
chipper disc is stationary and engine or
PTO has stopped.
3.2.2 Operate the machine without
protective clothing (Eye protection,
Earmuffs, and Gloves), or high visibility
clothing when working on roadside.
3.2.3 Operate with loose articles of
clothing, including loose cuffs on gloves.
3.2.4 Work under a raised component
without adequate safety support.
3.2.5 Operate the machine with untrained
personnel or with individuals present who
are not involved in the chipping operation.
3.2.6 Leave the machine unattended with
engine running at full operating speed.
(See section 4)
3.2.7 Put any part of your body into the
infeed chute while the machine is running.
3.2.8 Operate the machine whilst under the
influence of alcohol or drugs.
3.2.9 Stand between the tracks and the
chipper body.
3.2.10 Stand within 2 metres of the tracks
when the legs are being extended.
3.2.11 Extend legs to put the tracking
controls beyond reach.
3.2.12 Stop the engine or operate the
chipper when moving directly up or down a
slope.
3.2.13 Operate inside a building or
confined space.
3.2.14 Climb on the infeed chute.
3.3 ALWAYS:
3.3.1 Check machine before starting (see
Section 4 Preparation and Section 5.1
Operation: Pre-work checks).
3.3.2 Be aware of potential hazards in the
work area, i.e. uneven ground, tree roots,
obstructions and type of materials being fed
into the machine.
3.2.3 Feed from the side.
3.3.4 Have a second trained operator
within easy reach of the machine.
3.3.5 Maintain strict discipline at all times.
3.3.6 Service machine at specified periods.
(see Section 6: Routine Maintenance).
3.3.7 Note direction of discharge chute and
if necessary note the wind direction to
prevent debris from being blown into
highway or where it could affect members
of the public.
3.3.8 Adjust legs to keep the body level.
3.3.9 Check the route to the worksite for
gradients, undulations and obstructions.
3.3.10 Remove key before doing any
maintenance.

SAFE-Trak 3. SAFETY 3-2
©GreenMech Ltd 3-2 05/06
3.4 Safety Controls and Switches
3.4.1 Emergency Stop/Control Bar (fig
3.4.1(a) bottom type and 3.4.1(b) top type
Fig 3.4.1(a) Bottom Control Bar and
Reset Lever STC150, STC220,
STC19-28
Control Bar positions
(Nearside)
STOP FEED OUT FEED IN
(Offside)
FEED IN FEED OUT STOP
In the event of an emergency, push the
emergency stop bar to STOP the feed
rollers. This will lock in position
3.4.1.1 Once the emergency has been
rectified the following sequence should be
carried out:
3.4.1.2 To restart rollers pull the reset lever
whilst pulling the control bar towards the
Feed In position. On STC 16-23 the control
bar will return automatically.
Reset bar Control bar
3.4.1.3 Should the stop bar be tripped
accidentally in normal working conditions
i.e. NOT an emergency, then the rollers can
be recovered by performing the above
sequence.
3.4.1.4(a) To reverse (Feed Out) the rollers
on bottom bar machines push the control
bar into the middle detent. To regain
forward (Feed In) pull the control bar away
from the chipper. It is not necessary to use
the reset bar.
3.4.1.4(b) To reverse (Feed Out) the rollers
on top bar machine (STC16-23) pull the
control bar out towards the operator. The
bar will return to Feed In when released.
CAUTION! Regularly check that the
bar locates in the 3 correct positions. At no
time may this system be removed, jammed,
disabled or otherwise impede from effecting
the infeed stop control.
Fig 3.4.1(b) Top Control Bar and
Reset Lever STC16-23
Control Bar positions
(Nearside)
STOP FEED IN FEED OUT
FEED OUT FEED IN STOP
(Offside)
Control bar
Reset bar
Fig 3.1 Infeed Chute Height
Bottom bar (as shown) 600mm (min)
Top bar (STC16-23) 600mm (max)
Height

SAFE-Trak 3. SAFETY 3-3
©GreenMech Ltd 3-3 05/06
Fig 3.4.2a Engine Stop
Switch STC150 and
STC220 3.4.2 Engine stop switch
3.4.2.1 To stop the engine, turn the start
key anticlockwise (fig 3.4.2 a or b).
Ke
y
CAUTION! Do not restart engine until
hazard has been removed.
3.5 Control cut-outs
Cut-outs are installed to stop and prevent
restarting due to specific events.
Fig 3.4.2b Engine stop
switch STC16-23 and
STC19-28 3.5.1 Engine overheating is protected by
thermal cut-out switch in coolant circuit.
Key 3.5.2 Low engine oil pressure is protected
by pressure switch in the engine oil pump.
There is a manual override to enable
starting. Refer to GreenMech in an
emergency.
3.5.4 Engine cover opening is protected by
a microswitch to shut off the fuel solenoid.
3.5.5 Clutch disengagement changes
engine throttle from operating speed to idle
speed.

SAFE-Trak 3. SAFETY 3-4
3.6 No Stress system
Fig 3.7.1 Tracking controls 3.6.1 Speed sensor in alternator disables
feed roller FEED IN mode when engine
speed is below factory pre-set value.
Levers
LED light glows Green at normal operating
speed, Red at overload and idle and Red
Flash when start switch turned on.
Switches 3.7 Tracking Controls (Fig 3.7.1 & 3.7.2)
3.7.1 A two position toggle switch selects
either tracking or chipping. In track mode
the No Stress system will not allow the feed
rollers to operate. In chip mode the legs
cannot be extended and the drive to the
track pumps is disconnected. (Fig 3.7.2)
Fig 3.7.2 Switches 3.7.2 A three position toggle switch
controls each extending leg. Out to extend.
In to retract.
3.7.3 Lever controls operate the drives to
the tracks. Push for forward motion. Pull
for reverse motion.
3.7.4 A hand throttle is fitted for use only
when the machine is being tracked, not
when chipping.
Switches
Centre – Chip/track
Outer - Legs Note: On STC150, STC16-23 and STC19-
28 there is no chipper clutch. The chipper
disc runs whenever the engine is running.
CAUTION! STC16-23: When
traversing slopes track with legs at least
50% extended whenever possible.
©GreenMech Ltd 3-4 05/06

SAFE-Trak 3. SAFETY 3-5
3.8 SYMBOLS on the MACHINE
These relate to operator safety, correct use and maintenance of machine. Check that all
personnel understand and are familiar with meanings before using the machine.
Important Safety symbols
Take the correct action shown on the display below the stated hazard (see table)
Important Operating Checks Notice
Before use carry out daily the stated checks in the order shown (see table)
Caution! Remove key Do NOT
start engine
Caution! Beware
flying
object
hazard
Beware
noise
hazard
Beware
trapping
hazard
Brakes
off
-incorrect
Read
instruction
manual
Wear
helmet &
visor
Wear ear
protectors
Wear
proper
clothes
Brakes
on
-correct
Machine
not level
-incorrect
Beware
flying
object
hazard
Beware
flying
object
hazard
Beware
exposed
drives
hazard Caution!
Machine
level
-correct
Keep
bystanders
away
Position
and lock
discharge
chute
Fit all
guards Keep nuts tight
Every 8 Hours –
Daily checks Remove key stop engine
1. Check
coolant level 2. Check engine oil level
3. Check
hydraulic oil
level
4. Check
machine is level 5. Check brakes are on
6. Check
chipper disc is
clear of debris
7. Check all
guards are in
place
8. Check infeed
chute is clear of
debris
9. Lock
discharge chute
10. Pull control
bar to work
position 11. Start engine 12. Increase
from Idle to Run
Daily Checks
General Safety
©GreenMech Ltd 3-5 05/06

SAFE-Trak 3. SAFETY 3-6
Important Safety Information
Caution! Beware Crushing
hazard!
Do NOT work or park
directly up or down slope.
Caution!
Do NOT drive up or down
slopes of more than 25°
Caution!
Do NOT operate or traverse
on slopes of more than 35°
Caution! Beware crushing
hazard
Action: Do NOT stand in area
between machine body and
tracks
Caution! Beware of thrown
object hazard
Action: Keep away from fast
discharge chute
Caution!
Do NOT operate with infeed
chute at less than 600mm from
ground. (bottom bar machines)
Caution!
Do NOT operate with infeed
chute at greater than 600mm
from ground. (top bar machines)
©GreenMech Ltd 3-6 05/06

SAFE-Trak 3. SAFETY 3-7
Safety Information (continued)
Caution! Beware of thrown
object hazard
Action: Stand to side of infeed
chute, NOT in centre.
Transport Lock
Lock this component before
moving machine
Sound level
Ear defenders must
be worn
Lift Point
Maintenance Information
Diesel Filler Hydraulic Filler Grease point
40 hours / weekly
Radiator cleaning
8 Hours 40 Hours
Check
radiator
screen
Blow out
radiator
core
High temperature
grease 40 hours
©GreenMech Ltd 3-7 05/06

SAFE-Trak 3. SAFETY 3-8
Operating Information
Track drive and throttle controls
Left lever
LH track: forwards – backwards
Right lever
RH track: forwards – backwards
Lever with red knob
Engine throttle slow - fast
Track – Chip controls Track legs
Outer switches – legs extend - retract
Centre switch – Up to chip: Down to drive
Discharge chute control
Green is UP Blue is DOWN
Reset lever: Left hand shown
Pull to reset
No Stress indicator
Green is ON: Red is OFF
Bottom type Control Bar. Left hand shown
Push to STOP : Centre-feed out : Pull–feed in
Top type Control Bar. Left hand shown
Push to stop: Centre-feed in: Pull–feed out
©GreenMech Ltd 3-8 05/06

SAFE-Trak 4. MACHINE PREPARATION 4-1
4.1 Initial Fuelling and Parking
4.1.1 Fill the fuel tank with diesel. See
section 6.
Fig 4.2 Infeed chute catch, bottom
bar models. 4.1.2 Top up the hydraulic tank if
necessary, with the correct oil. See Section
6.
Catch (transport)
4.1.3 Position the machine body level and
adjust until the infeed chute is in correct
position - 600mm min (bottom bar) or max
(top bar) from the ground according to
control bar type. (see fig 3.1)
4.2 Infeed Chute unfolding (bottom bar
models only)
4.2.1 Remove the transport pin for the
infeed chute catch, release the catch (fig
4.2)
Catch
(work) 4.2.2 Using the tubular edge as a handle,
lower the infeed chute to the work position
and reset the catch.
4.2.3 Measure the height of the infeed
chute and readjust the legs as required.
4.2.4 Pull the reset lever to release the
control bar for use.
CAUTION! The infeed chute must be
positioned correctly above the ground. (fig
3.1)
Fig 4.3 Discharge chute
Fla
p
lever
CAUTION! Before travelling, always
fold up and secure the infeed chute.
4.3 Discharge Chute (Fig 4.3)
Swivel clamp 4.3.1 Release the swivel clamps and point
the chute in the desired direction.
4.3.2 Set the flap at the desired height and
tighten the clamp.
CAUTION! When travelling, lock the
the discharge chute pointing away from the
driver.
©GreenMech Ltd 4-1 05/06

SAFE-Trak 5. OPERATION 5-1
5.1 Pre-Work Checks:
Fig 5.1 1 Chipper Disc Cover 5.1.1 Check machine is stationary, start
key removed,
5.1.2 Check that machine is level and
infeed chute is 600mm minimum from
ground (fig 3.4.3).
Disc Cover
locating bolt
5.1.3 Check engine oil level (Refer to
engine instruction manual).
5.1.4 Check hydraulic oil level (See
Section 6).
5.1.5 Check fasteners for tightness and
hydraulic connections for leaks.
5.1.6 Check condition of disc blades.
5.1.6.1 Raise or remove engine cover.
5.1.6.2 Remove the bolt retaining chipper
disc cover. (Fig 5.1.1) Note: Two bolts on
STC19-28. (Fig 5.1.2)
Fig 5.1.2 Disc Cover (STC16-23 &
19-28)
5.1.6.3 Using discharge chute handle as a
lever, swing back cover onto stop to expose
chipper disc and blades. (fig 5.1)
Bolts 5.1.6.4 Carefully rotate chipper disc to
check tightness of disc blade bolts and
condition of blades.
5.1.6.5 Remove any loose wood material.
5.1.6.6 If any bolts are loose, refer to
maintenance section for further action.
5.1.6.7 Replace chipper disc cover and
tighten bolt(s) securely.
5.1.7 Remove any loose material and dust
from radiator and engine bay.
5.1.8 Replace engine cover.
5.1.9 Check discharge chute is in desired
position and all clamps are tight. (see
Section 4.3)
5.1.10 Check infeed chute (fig 4.2) is
locked in position with catch.
5.1.11 Check work area and erect signs
and cone off discharge area if necessary.
5.1.12 Check ALL safety procedures have
been followed.
CAUTION! Always work with the
chipper level across a slope, preferably with
the infeed direction slightly down the slope
to minimise the risk of material falling back
out.
©GreenMech Ltd 5-1 05/06