Ryobi RPHD52 - Reduction Gearbox; Cleaning Air Filter; Service Centre

REDUCTION GEARBOX
See figure 14
Every 100 working hours change the grease in the reduction gearbox.
LUBRICANT FOR REDUCTION GEARBOX
The post hole digger is supplied with TAMOIL TAMLITH GREASE 2 grease in the reduction
gearbox. The lubrication in the reduction gearbox should be checked periodically. To check the
lubricant condition and level; Remove the pressure release screw under the reduction gearbox.
CLEANING AIR FILTER
See figure 16 & 17
A dirty air filter will cause starting difficulty, loss of performance, and shorten the life span of the
engine. Check the air filter monthly. For best performance, replace the air filter at least once
a year.
Loosen the air filter cover by turning the fixing knob counter clockwise.
Remove the airbox cover and the air filter.
Clean the foam filter element with warm soapy water. Rinse and let dry.
NOTE: If the foam filter element is damagd, it should be replaced.
Apply a light coat of engine oil to the foam filter element, then squeeze it out.
Reinstall the air filter.
NOTE: Make sure the filter is seated properly inside the cover. Installing the filter
incorrectly will allow dirt to enter the engine, causing rapid engine wear.
Reinstall the airbox cover and tighten fixing knob to secure.
FUEL TANK
WARNING!
A leaking fuel cap is a fire hazard and must be replaced immediately.
The fuel cap contains a sealing gasket and a check valve to ventilate built up fuel gasses.
A clogged check valve will cause poor engine performance. If performance improves when
the fuel cap is loosened, the check valve may be faulty. Replace fuel cap if required.
The fuel supplied to the engine is passed through a filter to remove any contaminants from
entering the engine. Contaminants in the fuel can cause poor performance and damage to
the engine.
The fuel filter is a non-serviceable item and if needed should be replaced by an AUTHORISED
SERVICE CENTRE.
17
The manual specifies “TAMOIL TAMLITH GREASE 2”
This is a Lithium soap based grease with a temperature range of -30 to 130 C.
Castrol L/EPO is a suitable substitute (or equivalent in other brands).
It’s a Lithium based semi fluid grease suited to gearboxes and being semi liquid is self-levelling.
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