New Master 35 Petrol/Gasoline Impact Wrench
7
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ROUTINE SERVICE
(See Exploded Diagram Drawings on Pages 9 to 13 and 15 to 17)
1. REPLACING
SPARK
PLUG
4003.5010
Lift two Cover Clips and lift off Filter Cover
4003.3010. Pull off Spark Plug Cover. Unscrew
Spark Plug and replace with Champion RCJ4 or
equivalent making sure the gap is set at 0.5mm
(0.02”).
2. REPLACING AIR FILTER 4003.3080
Remove the Filter
Cover by lifting the
Filter Cover Clips.
Loosen the two air filter
screws and remove it
Clean with a suitable
degreaser, rinse with
water and blast dry with
compressed air.
Renew the filter if
heavily clogged or
damaged.
3. REPLACING FUEL FILTER 4003.1075
With the Wrench in a
vertical position open
Fuel Cap 4003.6020
cautiously to release
any
build-up
of
pressure in the Fuel
Tank. Pull out Fuel
Filter and replace if
dirty.
4. REPLACING STARTER ROPE 4003.0340
Remove four Screws 4003.2070 holding
Starter Assembly 4003.2190 and Screws
2300.0520 off muffler guard and remove
Starter Assembly. Hold Pulley 4003.2130 with
thumb, cut old cord and allow Pulley to turn
slowly back until no tension is left in Recoil
Spring 4003.2150. Remove Centre Screw
4003.0690 and Washer 4003.0700 and slowly
lift off Pulley. Fit new Rope through Pulley and
tie a knot. Feed other end of Rope through
Starter Assembly 4003.2190 and into Starter
Handle 4003.2180 and again tie a knot. Locate
Pulley in Recoil Spring and replace Centre
Screw 4003.0690 and Washer 4003.0700.
Locate Rope in the notch on outside of pulley,
turn clockwise two complete
turns then release. Repeat
until the Starter Handle
returns to the Housing locating
hole - Approximately six
complete turns when pulled
out. Re-attach starter
assembly.
5. REPLACE GEAR BOX OIL
Remove three Screws 2300.0512 in Gear
Selector 2870.1000 and remove from
Gear Box. Empty out old oil. Fill
gearbox with 0.25 litres (1/2 pint) of
Gazpromneft Reductor CLP68, Mobil Gerar
626, Carter EP68, Merpoa 68, Valvoline 80-
90W or an equivalent non synthetic 68
viscosity Gear Oil. Re-fit Selector and fit
screws using a suitable fastener locking fluid.
6. GREASING HAMMER AND ANVIL
Remove three nuts 2310 2061, four Screws
2300.0851 and Nose Casing 035301.
Clean out old grease and replace with 130
grammes (4
1
/2 ozs) of new
Molybdenum
Disulphate Grease Grade 2
Ensure this is
pumped into holes on the side of Hammer
Casing 2590.1000 and onto all eight
striking faces.
Use of the correct quality grease will extend
the life of both Anvil and Hammer.
7. ENGINE
Clean Starter Housing and Cylinder Fins at
regular intervals. Use either a brush or
compressed air.
Dirt build up on the cylinder will generate
overheating which could then reduce engine
performance.
8. CARRYING AND THROTTLE HANDLE
Replace Rubber Mounts when they are
ineffective or worn out.
9.
ROUTINE MAINTENANCE INSTRUCTIONS
It
is
recommended
a
record
of
inspections
and maintenance is kept
and each Wrench is given a routine
maintenance check every three months.
This
will
reduce
maintenance
costs,
improve efficiency and extend its useful life.
Fix a label showing next Service date
DAILY
Check all Bolts, Screws and Nuts for
tightness and gearbox oil level.
WEEKLY
Clean Air Filter and Fuel Filter. If
necessary use a suitable Solvent.
MONTHLY
Clean Spark Plug and
check gap is 0.5 m
THREE MONTHS As above plus following:-
Clean internal Hammer and Anvil
faces thoroughly and replace Grease.
SIX MONTHS
Change Fuel Filter and check
condition of Air Filter and Spark Plug
ANNUALLY
Replace Gear Box Oil
Use only GENUINE MASTER SPARE PARTS
This will cost less than using non original Spare
Parts
which generally don’t last as long.
Use of non-original parts reduces Wrench life
cancels Warranty and affects Product
Liability cover
.
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