NorthStar 150, Руководство оператора

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MAINTENANCE
DAILY
1. Visually check for loose bolts or nuts.
2. Oil chain and grease tongue pivot pins liberally.
3. Grease 2
"
ball.
WEEKLY
1. Check for loose sprockets. Retighten if necessary.
2. Tighten main pick-up chain if necessary. Note: if tightening is necessary, the short
drive chain must be loosened first and then retightened. Also replace the chain guard.
3. Grease drive shaft bearings. Note: grease only until bearing will not accept any more.
To further pump grease into sealed bearings damages the seals.
AFTER FIRST 100 HOURS
1. Check all bolts and nuts for tightness. (If necessary use torque chart provided
below.)
2. Check ground skids for excessive wear.
3. Check 2
"
ball and coupler for excessive wear.
4. Check idler sprockets for damaged bearings.
TORQUE CHART
Torque Specification Table
Thread UNC and UNF Grade 2 Grade 5 Grade 8*
BOLT SIZE TORQUE TORQUE TORQUE
Pound Feet Pound Feet Pound Feet
Inches mm Min Max Min Max Min Max
¼ 6.25 5 6 9 11 12 15
5/16 7.94 10 12 17 20.5 24 29
3/8 9.53 20 23 35 42 45 54
7/16 11.11 30 35 54 64 70 84
½ 12.70 45 52 80 96 110 132
9/16 14.29 65 75 110 132 160 192
5/8 15.88 95 105 150 180 220 264
¾ 19.05 150 185 270 324 380 456
7/8 22.23 160 200 400 480 600 720
1 25.40 250 300 580 696 900 1080
1-1/8 25.58 - - 800 880 1280 1440
1-1/4 31.75 - - 1120 1240 1820 2000
1-3/8 34.93 - - 1460 1680 2380 2720
1-1/2 38.10 - - 1940 2200 3160 3560
* Thick nuts must be used with grade 8 bolts.
Note: Chain oil is usually a 50/50 mixture of oil and diesel.
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