EH12, EH17, EH25 - Small Engine Discount

More documents

Recommendations

Info

4-6 CAMSHAFT ‘I’he camshaft for the D-type engine is made of special cast iron and camshaft gears are casted togcther in one piece. Both sides of the shaft fit into the plane bearings on the crankcase and main bearing cover. ‘I’hc camshaft for the B-type engine is made of forged carbon stcel and also functions as PTO shaft. The cam gear is press fitted on the shaft and the ball bearings arc employed on both sides for supporting the shaft. (See Fig. 4-6.) I I B TYPE I Fig. 4-6 D li’PE 4-7 VALVE ARRANGEMENT ‘I’he intake v;llve is located on flywheel side of the cylinder hcad. ‘I’hc hard alloy valvc seats are molded in the cylinder head and stcllite is fused lo the exhaust valvc f;KC. ‘I’hc cylindcr bafflc leads cooling air to the exhaust valvc arca for the optimum cooling. (See Fig. 4-7.) h. Fig. 4-7 4-8 CYLINDER HEAD ‘I’hc cylindcr hcad is a11 aluminurn die casting which utilizcs wcdgc type combustion chamber for thc highcst combusl.ion cli‘icicncy. (See Fig. 4-13,) Fig. 4-8 - 10 -
4-9 GOVERNOR SYSTEM The governor is a centrifugal flyweight type which ensures constant operation at the selected speed against load variations. The governor gear with governor weights is installed on the main bearing cover. (See Fig. 4-9.) / GOVERNOR GEAR Fig. 4-9 4-10 COOLING SYSTEM The large fins on the flywheel provide sufficient cooling air capacity for cylinder. The cylinder baffle helps the cooling air flow efficiently. the inlet and exhaust area and 4-1 1 LUBRICATION All the rotating and sliding parts are splashlubricated by the oil scraper on the connecting rod. (See Fig. 4-10.) I OIL SCRAPER Fig. 4-10 1‘ - 11 -
Page 2 and 3: ROBIN ROBIN AMERICA, INC. ROBIN TO
Page 4 and 5: " . 13-1 13-2 13-3 13-4 13-5 13-6 1
Page 6 and 7: ~~~~ ~~ Model TY Pe Bore X Stroke P
Page 8 and 9: 2. PERFORMANCE 2-1 MAXIMUM OUTPUT A
Page 10 and 11: n 0 EHf7D, B (. ). for B type " kg-
Page 12 and 13: 3. FEATURES 1. The overhead valve d
Page 16 and 17: 4-12 IGNITION SYSTEM The ignition s
Page 18 and 19: ROCKER ARM I L - 14 -
Page 20 and 21: 5-3 DISASSEMBLY PROCEDURES Step Par
Page 22 and 23: ~~ I Step I Part to remove 1 Proced
Page 24 and 25: Step Part to remove Procedures Rema
Page 26 and 27: ~ ~~ ~ ~~ ~~~ ~ I Step Part to remo
Page 28 and 29: ~~ ~ ~~ Step 18 Part to remove 1 Pr
Page 30 and 31: Step Part to remove 1 Procedures Re
Page 32 and 33: Step 26 Part to remove Connecting r
Page 34 and 35: ~~~~ Step Part to remove Procedures
Page 36 and 37: TOP RING “N” MARK SECOND RlNC O
Page 38 and 39: 54-5 BALANCER SHAFT (EH25 type only
Page 40 and 41: Fig. 5-36 (2) Lubricate the oil sea
Page 42 and 43: (2) Loosen the lock nut on the rock
Page 44 and 45: (3) Connect the speed control lever
Page 46 and 47: 5-5 BREAK-IN OPERATION An engine th
Page 48 and 49: 6-3 WIRING DIAGRAM STANDARD - Ignit
Page 50 and 51: 8. CARBURETOR 8-1 OPERATION AND CON
Page 52 and 53: 8-2-4 MAIN SYSTEM (1) Remove the bo
Page 54 and 55: (4) Remove the reel from the starte
Page 56 and 57: (6) Test the operation of the recoi
Page 58 and 59: 10-1-3 IGNlTfON SYSTEM Check the fo
Page 60 and 61: 11. INSTALLATION Engine life, ease
Page 62 and 63: ITEM T EH12 T EH17 Unit: mrn (in) S
Page 64 and 65:
~~ ~~~ ~ Ring groove ITEM side clea
Page 66 and 67:
ITEM T STD EH12 Limit Unit: mrn (in
Page 68 and 69:
~ CONNECTING ROD ITEM T STD EH25 Li
Page 70 and 71:
Unit : mm (in) CAMSHAFT ITEM STD EH
Page 72 and 73:
ITEM T STD EH25 Limit Unit: mm (in)
Page 74 and 75:
12-3 OIL GRADE CHART I 5w I Compari
Page 76:
~ ~ ~~~~ ~ ~ 13-4 EVERY 100-200 HRS
show all

EH12, EH17, EH25 - Small Engine Discount

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?