Makita EH7500S dimensions Ignition, Maintenance

P 9/ 25

Repair

[3]DISASSEMBLY/ASSEMBLY

[3]-6. Ignition

MAINTENANCE

Plug Cap

(1)Remove Plug cap from Spark plug and check the resistance between Plug cap spring and Ignition coil with circuit tester. (Fig. 18)

Fig. 18

Grounding terminal of Ignition coil

If the Circuit tester shows 2.0 ± 0.5 kΩ, the connection is in order.

Spark plug

Plug cap

Circuit tester

(2)Check the connection of Plug cap spring with Ignition cable if Pointer of Circuit tester does not move or does not steadily indicate 2.0 ± 0.5 caw.

Spray lubricant into the Plug cap and pull out Plug cap spring together with Ignition cable. (Fig. 19)

Fig. 19

Plug cap spring

Ignition cable

Plug cap

(3)Check Plug cap if there is any crack, damage or disconnection. Re-fix them or replace the damaged one with the new one if there is any disorder.

(4)Stick a Plug cap spring end into the center of Ignition cable and put them back into Plug cap while holding Plug cap spring with pliers.

(5)Incomplete connection of Plug cap spring with Ignition cable causes the feeble sparking or no sparking from Spark plug. Check the connection by taking the same procedure of (1) to (4).