Perkins2806如何檢查風(fēng)扇傳動帶

Check all drive belts and renew a belt if it is worn or damaged. Where more than one belt is used between two

pulleys, all of the belts must be renewed together. Maximum belt life will be obtained only if the belts are kept

at the correct tensions. Where more than one belt is us ed, check/adjust the tension on the tightest belt.

How to adjust the tension of the fan belts

Remove the fan guards and proceed as follows.

Use a Borroughs belt tension gauge to check the tension at position (A1). It should be 714 N (160 lbf) 70,81

kgf. To adjust the tension, proc eed as follows:

1 Loosen the large lock nut on the belt tens ioner and turn the adjustment setscrew (A2) until the correc t tension

is obtained. Fully tighten the large lock nut to 280 Nm (207 lbf ft) 28,5 kgf m and chec k the tension of the belts

again. If the tension is correct, loosen the adjustment setscrew (A2) just enough to release the tension.

2 Fit the fan guards and run the engine for 15 minutes. With the engine stopped, remove the guards and check

again the tension.

3  When the correct tension is obtained, fit the fan guards.

32

User’s Handbook, TPD1516E, Issue 1

2800 Series

How to adjust the tension of the alternator belt

Remove the access panel in the fan guard and proceed as follows.

4

Use a Borroughs belt tension gauge to check the tension at (A5). It should be 625 N (461 lbf ft) 63,73 kgf. To

adjust the tension, proceed as follows:

1  Loosen the alternator pivot bolt (A3), the adjustment link setscrew which is behind the fan pulley and the

adjustment setscrew (A4). Move the alternator to obtain the correct belt tension and tighten the bolt/setscrews

to 70 Nm (51.63 Ibf ft) 7,14 kgf m.

2 Fit the access panel to the fan guard and run the engine for 15 minutes. Remove the access panel and check

again the tension.

3  When the correct tension is obtained, fit the access panel to the fan guard.

User’s Handbook, TPD1516E, Issue 1