7. ROUTINE SERVICE - MASTER 35®

1. REPLACING SPARK PLUG 4000.0809
Loosen two Filter Cover Screws 0180 and lift off Filter Cover 0990. Pull off Spark Plug Cover 0250. Unscrew Spark Plug and replace making sure the gap is set at between 0.5 and 0.6mm.

2. REPLACING AIR FILTER 4003.0451
Pull Air Filter 0451 from inside the Filter Cover 0990. Clean Filter and Filter Cover or if necessary, replace.

3. REPLACING FUEL FILTER 4001.9100
With the Machine in a vertical position open Fuel Cap 1090 cautiously to release any build up of pressure in the Fuel Tank. Pull out Fuel Filter and replace.

4. REPLACING STARTER CORD 4003.0340
Remove four Screws 0410 holding Starter Assembly 1162. Hold Pulley 0360 with thumb, cut old cord and allow Pulley to turn slowly back until no tension is left in Recoil Spring 04501. Remove Centre Screw 0690 and Washer 0700 and slowly lift off Pulley. Fit new Cord through Pulley and tie a knot. Feed other end of Cord through Starter Housing 1043 and into Starter Handle 0400 and again tie a knot. Locate Pulley in Recoil Spring and replace Centre Screw 0690 and Washer 0700. Locate Cord 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 when pulled out. Ensure correct length Screws 0410 are used when re-assembling.

5. REPLACE GEAR BOX OIL
Remove three Screws 58 in Gear Selector 46 and remove from Gear Box. Empty out old oil. Fill gearbox with 0.5 litres (0.88 pints) of EP68 Gear Oil. Replace Selector and fit screws using a suitable fastener locking fluid.
When the Wrench is new change gearbox oil after one hours use, after five hours and then every thirty hours on a routine basis.

6. GREASING HAMMER AND ANVIL
Remove four Screws 90, 91, 95, Nuts 62 and Nose Casing 86. Clean out old grease and replace with 130grammes (4 1/2 ozs) of new Molybdenum Disulphate Grease. Ensure this is pumped into holes on the side of Hammer Casing 83 and onto all eight striking faces.

7. ROUTINE MAINTENANCE INSTRUCTIONS
It is recommended a record of inspections and maintenance is kept and each Wrench is given a Routine Maintenance Check after every 50 Hours use.
This will reduce maintenance costs, improve efficiency and extend it's useful life.

OPERATOR
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 or every 25 hours use - Clean Spark Plug and check gap is 0.5 - 0.6mm. Change Gearbox Oil
QUARTERLY or every 50 hours use - As above plus following:- Clean internal Hammer and Anvil and replace Grease. Change Fuel Filter
Use only GENUINE MASTER SPARE PARTS
Use of non-original parts reduces Wrench life, cancels Warranty and affects Product Liability cover .