Makita HR3520B User Manual download pdf (Page 6)

Lubrication (Fig. 14 & 15)

This tool requires no hourly or daily lubrication because it

has a grease-packed lubrication system. Lubricate the

tool every time the carbon brushes are replaced.

Run the tool for several minutes to warm it up. Switch off

and unplug the tool. Remove the crank cap using a Mak-

ita lock nut wrench 35 (optional accessory). Rest the tool

on the table with the bit end pointing upwards. This will

allow the old grease to collect inside the crank housing.

Wipe out the old grease inside and replace with a fresh

grease (60 g). Use only Makita genuine grease (optional

accessory). Filling with more than the specified amount

of grease (approx. 60 g) can cause faulty hammering

action or tool failure. Fill only with the specified amount of

grease. Reinstall the crank cap and tighten with the lock

nut wrench. Do not tighten the crank cap excessively. It is

made of resin and is subject to breakage.

To maintain product safety and reliability, repairs, mainte-

nance or adjustment should be carried out by a Makita

Authorized Service Center.

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Makita HR3520B User Manual Page 6