Makita EH7500S manual

PRODUCT P 1/ 25 EH7500S Petrol Hedge Trimmer Model EH7500S is a 22.2cm³ 2-stroke petrol hedge trimmer with single-sided blade in compliance with all known exhaust emission regulations, featuring extra light design with further improvements in noise, vibration and handling compared with our current models. Especially, the lightweight design is outs[...]

R epair Apply Makita Grease N. No.2 to Spiral spring for recoil starter (approx. 2g) and Gear room (approx. 40g). [1] NECESSARY REPAIRING TOOLS < Note in repair> * Repair the tool always with gloved hand * Blades must be covered by Blade cover * Cool down the engin first before repairing to avoid a skin burn. * Remove all fuels from fuel tank[...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -1. Engine section Fig. 3 (1) Disconnect Bullet terminal from the Lead wire of Ignition coil. ( Fig. 1 ) (2) Remove Air cleaner cover and disconnect control cable from the swivel of carburetor. Remove Control cable from cable bracket. ( Fig. 2 ) (3) Remove three bolts to separate engine section. Grounding lead w[...]

P 4/ 25 R epair [3] DISASSEMBLY/ASSEMBLY [3] -2. Clutch Section Fig. 5 By using impact driver, Clutch can be loosened without holding Piston by utilizing air pressure in the cylinder. In order to utilize this air pressure resistant, do not remove Spark plug in this step. (1) Separate Engine section from Gear housing. ( Figs. 1, 2 and 3 ) (2) Remove[...]

P 5/ 25 R epair [3] DISASSEMBLY/ASSEMBLY [3] -3. Clutch Drum (1) Separate Gear case from Engine section. ( Figs. 1, 2 and 3 ) (2) Remove Gear case cover from Gear case. (3) Disassemble Clutch drum. ( Figs. 6 and 7) DISASSEMBLING Fig. 6 Fig. 7 Hex socket head bolts for fastening Gear case cover to Gear case Spur gear 9 Lock Spur gear 9 with 1R374 fo[...]

P 6/ 25 R epair Fig. 8 Fig. 9 Remove Spur gear 9. ( Fig. 8 ) DISASSEMBLING ASSEMBLING Put Gear housing on the turn base of Arbor press horizontally. Insert Spur gear 9 into Ball bearing in Gear case and press it with Arbor press. ASSEMBLING 1R024 1. Apply 1R024 to Shaft of Spur gear 9 and press it with Arbor press. 2. Now, Spur gear 9 is disassembl[...]

P 7/ 25 R epair (1) Align the Shear blade (upper) with the lower one. ( Fig. 11 ) (2) Set 2 pcs. of Sleeve 5 under Plate of Shear blade assembly. ( Fig. 12 ) (3) Set the position of Spur gear 43 as drawn in Fig. 13 . DISASSEMBLING ASSEMBLING [3] DISASSEMBLY/ASSEMBLY [3] -5. Shear Blade Remove Holder and Shear blade assembly by unscrewing two Hex so[...]

P 8/ 25 R epair (4) Mount Shear blade assembly in the Gear case while fitting Shear blade’ boss into the hole of Connecting rod. Fix the Shear blade assembly to Gear case by driving Hex socket head bolt through the Holder and each Sleeve 5. Note : • Do not forget to mount Seal. ( Fig. 14 ) • Apply Makita grease N. No.2 to the portion designat[...]

P 9/ 25 R epair (1) Remove Plug cap from Spark plug and check the resistance between Plug cap spring and Ignition coil with circuit tester. ( Fig. 18 ) MAINTENANCE [3] DISASSEMBLY/ASSEMBLY [3] -6. Ignition Plug Cap (2) Check the connection of Plug cap spring with Ignition cable if Pointer of Circuit tester does not move or does not steadily indicat[...]

P 10/ 25 R epair (1) Remove Plug cap with Socket wrench 10-16. Clean the spark terminals of the removed Plug. ( Fig. 20 ) And adjust the gap of Spark terminals to 0.6 - 0.7 mm. DISASSEMBLING [3] DISASSEMBLY/ASSEMBLY [3] -6. Ignition (cont.) Spark Plug Ignition Coil (2) Mount Plug cap on the Plug and contact the Plug’s thread portion to the metal [...]

P 11/ 25 R epair ASSEMBLING Ignition Coil (1) Set Spacer on Cylinder and assemble Ignition coil on Spacer while inserting 0.3 mm feeler gauge of 1R366 between Fly wheel’s magnetized portion and Ignition coil. ( Fig. 22 ) Keep the inserted feeler gauge in this step till the Ignition coil is fully tightened in order to fix the 0.3 mm gap precisely.[...]

P 12/ 25 R epair DISASSEMBLING Fly Wheel Note : Plug cap has to be removed in order to avoid accidental start of engine. Do not remove Plug when the nut for tightening Fly wheel is loosened to utilize air resistant in Cylinder. (1) Attach 10 mm Hex socket bit to Impact driver. Turn M6 Hex nut counterclockwise with a Impact driver (Clutch is removed[...]

P 13/ 25 R epair DISASSEMBLING ASSEMBLING Fly Wheel (1) Remove oil completely from Crankshaft. (2) Align Woodruff key on Crank shaft to the key groove of Fly wheel and mount Fly wheel to Crankshaft. (3) Turn M6 Hex nut to Crankshaft clockwise by hand and tighten it with Impact driver with 10 mm Socket bit clockwise for 2 second. (1) Remove Recoil s[...]

P 14/ 25 R epair Fig. 27 DISASSEMBLING [3] DISASSEMBLY/ASSEMBLY [3] -7. Recoil Starter (cont.) (2) Disassemble Recoil starter. ( Fig. 27 ) Reel Reel Notch Notch Rope 1. Pull out Rope by the length of one or two times turn of the Reel and hold the Reel. 2. Release Starter knob while holding the Reel with your finger and pull the slack Rope inside. H[...]

ASSEMBLING Assemble the Recoil starter. ( Figs. 28 and 29 ) Fig. 28 1. Set the outer end of Spiral spring here firstly and wind it clockwise till it is completely installed in the Starter case. Note : Apply Makita grease N. No.2 a little on the Spiral spring (Red grease was applied to it at ex-factory condition). 2. Pass the new Starter rope throug[...]

P 16/ 25 R epair [3] DISASSEMBLY/ASSEMBLY [3] -8. Carburetor Fig. 30 Fig. 31 (1) Remove Air cleaner cover. ( Fig. 30 ) (2) Remove Elements, Sponge and Felt. ( Fig. 31) Air cleaner cover Hex socket head bolt Element (Felt made) Element (Sponge made) Fig. 33 Throttle valve assembly Pan head screw (small) Pan head screw (4pcs.) Carburetor body assembl[...]

P 17/ 25 R epair [3] DISASSEMBLY/ASSEMBLY [3] -8. Carburetor (cont.) (7) Check Inlet needle in the Pump body assembly if its tip is intact. Replace Controller set including Inlet needle to the new set if Inlet needle tip is damaged. It can be removed by unscrewing M3x4 Set screw. Check if there is any foreign material stuck on Fuel inlet before fix[...]

P 18/ 25 R epair Assemble by reversing the disassembly, cleaning procedure. See Fig. 37 . (1) Connect two Tubes to Carburetor. ( Fig. 38 ) ASSEMBLING AIR-TIGHT TEST Fig. 37 Nipple for fuel intake 1R127 1. Connect 1R127 to Carburetor. 2. Push up the air pressure until the pressure gauge indicates 0.05 Mpa. 3. The Carburetor is in order if the air pr[...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -8. Carburetor (cont.) (2) Fasten the following parts with two Hex socket head bolts. ( Fig. 39 ) * Plate * Air cleaner plate * Gasket * Cable bracket * Gasket * Carburetor assembly * Carburetor gasket Fig. 39 (3) Assemble Elements. ( Fig. 40 ) ASSEMBLING CARBURETOR TO ENGINE Air cleaner plate Hex socket head bo[...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -9. Stop Switch (1) Connect Circuit tester for checking Stop switch. ( Fig. 41 ) Fig. 41 MAINTENANCE Bullet terminal Connecting terminal Stop switch is in order if it works as followings: * Circuit tester shows no connectivity when Engine ON * Circuit tester shows a connectivity when Engine OFF P 20/ 25[...]

2. Connect the clear tube to the longer nipple of Primer pump. R epair [3] DISASSEMBLY/ASSEMBLY [3] -10. Fuel Tube TUBING Fig. 42 Fuel filter Fuel tank Connect Fuel tank, Primer pump, Carburetor with Tubes. ( Fig. 42 ) 1. Mount Tube complete (equipped with black Tube and clear Tube) to Fuel tank. The black Tube is for Fuel inlet. Insert Fuel filter[...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -11. Spark Arrestor 2. Remove Inner muffler cover (metal) and Muffler gasket from Muffler. DISASSEMBLING, CLEANING Fig. 44 (1) Separate Engine from the product. ( Figs. 1, 2 and 3 ) (2) Disassemble Muffler section. ( Fig. 43 ) Muffler cover (outer) 1. Remove Muffler cover (outer). And remove two Hex socket head [...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -12. Engine Block DISASSEMBLING Fig. 46 (1) Disassemble the following parts from Engine. * Blower housing * Muffler cover (out side) * Muffler * Cylinder cover * Plug cap * Spark plug * Ignition coil * Carburetor * Clutch * Fly wheel (2) Remove Fuel tank while paying attention not to lose Spacer which is fixed i[...]

R epair [3] DISASSEMBLY/ASSEMBLY [3] -12. Engine Block (cont.) Fig. 49 (3) Assemble the new Piston clip with Awl. ( Fig. 47 ) (4) Assemble Piston rings ( Fig. 48 ). (5) Assemble Cylinder gasket to Cylinder. ( Fig. 49 ) ASSEMBLING Fig. 47 Top Side Skirt Side Piston clip opening must face to either the top side or Skirt side of Piston when assembled.[...]

R epair [3] -13. Fastening Torque Fig. 50 Part description Crankcase 1 Crankcase 2 M5x18 Hex Socket Head Bolt Bolt and Screw Fastening Torque (N. m) 8 Cylinder Crankcase M5x18 Hex Socket Head Bolt 8 Fly wheel Crankshaft 1 M6 Nut 12 Coil Cylinder M4x20 Hex Socket Head Bolt 4 Muffler Cylinder M5x50 Hex Socket Head Bolt 8 Muffler cover Muffler M5x5 Sc[...]