TIMBERWOLF
TW 190TDHB
17
SERVICE INSTRUCTIONS
HANDLE blades with extreme caution to
avoid injury. Gloves should always be
worn when handling the cutter blades.
THE drive belts should be connected
while changing blades, as this will restrict
sudden movement of the rotor.
THE major components of this machine
are heavy. Lifting equipment must be
used for disassembly.
CLEAN machines are safer and easier to
service.
AvOID contact with hydraulic oil.
ALWAYS IMMOBILISE THE ENGINE BEFORE UNDERTAKING ANY MAINTENANCE WORK ON
THE CHIPPER BY REMOVING THE KEY AND DISCONNECTING THE BATTERY.
Only fit genuine Timberwolf replacement blades, screws and chipper spares. Failure to do so
will result in the invalidation of the warranty and may result in damage to the chipper, personal
injury or even loss of life.
The lifting eye is designed to lift the machine’s weight only. Do not use
hoist hook directly on the lifting eye, use a correctly rated safety shackle.
Inspect the lifting eye prior to each use - DO NOT USE LIFTING EYE IF
DAMAGED.
SAFE MAINTENANCE
SAFE LIFTING OF THE CHIPPER
BATTERY REMOVAL AND MAINTENANCE
CHECK FITTINGS
SPARES
The Timberwolf TW 190TDHB is subject to large vibrations during the normal course of operation.
Consequently there is always a possibility that nuts and bolts will work themselves loose. It is
important that periodic checks are made to ensure the security of all fasteners. Fasteners should be
tightened using a torque wrench to the required torque (see below).
Uncalibrated torque wrenches
can be inaccurate by as much as 25%. It is therefore essential that a calibrated torque wrench
is used to achieve the tightening torques listed below.
BATTERY MAINTENANCE
1.
Undo the two M10 nuts on the battery cover.
2.
Remove the battery cover.
3.
The battery can be serviced in this position.
BATTERY REMOVAL
1.
Remove the negative battery lead.
2.
Remove the positive battery lead.
When reinstalling the battery apply a small smear of vaseline to the terminals.
WARNING
Refer to the battery safety section on page 18-19.
Size
Pitch
Head
Torque Ibs.ft Torque Nm
Blade Bolts
M16
Fine
24 mm Hex
125
170
Anvil Retaining Bolts
M12
Standard
10 mm Allen Key
65
88
Rotor Housing Clamp Bolts
M16
Standard
24 mm Hex
60
80
Hyd Motor Retaining Cap Screws
M12
Standard
10 mm Allen Key
60
81
Roller Box Retaining Bolts
M16
Standard
24 mm Hex
105
140
Rotor Main Shaft Retaining Screws
M12
Standard
10 mm Allen Key
105
140
Rotor Stub Shaft Retaining Screws
M10
Fine
8 mm Allen Key
45
61
Large Rotor Shaft Retaining Nut
M39
Nut
60 mm Hex
450
610
Funnel Retaining Nuts
M12
Standard
19 mm Hex
60
80
General
M8
Standard
13 mm Hex
17
23
General
M10
Standard
17 mm Hex
34
46
General
M12
Standard
19 mm Hex
60
80
Drain Bung in Fuel Tank
3/8” BSP
-
22 mm Hex
25
33.8
Fuel Take-off in Fuel Tank
3/4” BSP
-
32 mm Hex
40
54.2
