26
REPLACEMENT AND TOLERANCE CHART
Part
TOLERANCE OR REPLACEMENT CYCLE
Air Cleaner Element
Clean Element Daily,
more often under dusty conditions. Tap
EleĆ
ment lightly on a flat surface - If dust does not drop off easily or if
element is bent or crushed .......... Replace It!
Bearing (Bronze)
If there are wear marks or the I.D. is greater than 1.145 in (29mm),
replace.
Bearings
Replace anytime
a Bearing is rough, binding or discolored.
Bellows
When the Bellows are worn or cracked to the point of leaking, reĆ
place the Bellows. A leak may occur from a loose Clamp. If this is
the case, tighten the Clamp.
Bushing (Piston Pin)
Replace if it is discolored or the I.D. is greater than 0.630in (16mm).
Clutch
Replace the Shoes and Spring if they show signs of heat damage
or the Clutch
does not disengage
below 2000 rpm.
Crank Gear
Replace if the teeth are cracked or they become sharp.
Governor Chamber Oil
Replace after first 100 hours, thereafter, every 300 hours or 1 year.
(Robin EC10D)
Use 1 ounce (30 ml) of
Service SF" SAE 10W-30
Motor Oil.
Guide Bushings
If a 0.025in (0.635mm) feeler gage can be slid between the Spring
Box and Guide Tube replace the Bushings.
Hardware
Torque all bolts after the first eight hours of operation and
check evĆ
ery 25 hours.
OĆRings and Seals
Replace at every overhaul or teardown
. Use MĆBĆW OĆRing and
Seal Kit #06472.
Oil Screen
Clean or Replace Oil Screen, every 300 hours or 1 year.
(Robin EC12D)
Oil Line
Replace Oil Line every year.
(Robin EC12D)
Pinion
Replace if teeth are chipped or they become sharp. Also replace if
drum is scored or gouged deeper than 0.03in (0.76mm).
Piston
If a 0.025in (0.635mm) feeler gage can be slid between the Piston
and Spring Box replace the Piston.
Piston Pin
If the outside diameter is less than 0.620in (15.75mm), replace.
Piston Washers
Replace
if Washers are dished.
Ram Shaft
If the outside diameter is less than 1.120in (28.4mm) replace.
Rammer Oil
Replace after the first 50 hours, then after every 300 hours or 1 year.
Use 12 ounces (360ml) of
Service SF SAE 10W-30 Motor Oil
.
Safety Decals
Replace
if they become damaged or illegible or if unit is repainted.
Springs
If a flat spot on the side of a spring is greater than 0.09 in (2mm) or
the free length is less than 6.75 in (171 mm),
replace all springs.
REMEMBER - YOU OWN THE BEST! If repairs are needed use only MBW Inc. Parts
purchased from Authorized MBW Distributors.
Содержание R270R
Страница 29: ...27 FIGURE 7 270 450 451 GEARBOX ...
Страница 31: ...29 FIGURE 8 374 376 GEARBOX ...
Страница 33: ...31 FIGURE 9 270 450 451 LOWER SYSTEM ...
Страница 35: ...33 FIGURE 10 374 376 LOWER SYSTEM ...
Страница 37: ...35 FIGURE 11 270 450 451 HANDLE ...
Страница 39: ...37 FIGURE 12 STANDARD HANDLE OIL INJECTED ONLY ...
Страница 41: ...39 FIGURE 13 374 376 HANDLE ...
Страница 43: ...41 FIGURE 14 LO PROFILE HANDLE 1 3 6 10 11 13 11 9 ...
Страница 45: ...43 FIGURE 15 LO PROFILE HANDLE OIL INJECTED ONLY ...
Страница 49: ...47 FIGURE 17 ROBIN ENGINE ...
Страница 51: ...49 FIGURE 18 ROBIN OIL INJECTED ENGINE ...
Страница 53: ...51 FIGURE 19 LO PROFILE ROBIN ENGINE ...
Страница 55: ...53 FIGURE 20 AIRAMMER MOTOR 2 6 5 4 3 1 9 8 7 TO VALVE BLOCK TO MOTOR INLET ...