Graco GrindLazer 270 - Page 10

Belt Replacement
10 3A0102D
Installation
1. Install new belt.
2. Use two wrenches to tighten motor mount adjust-
ment bolts on each side of scarifier base.
3. Tighten belt adjustment bolt according to recom-
mended tension below.
Belt Tension Recommendations:
4. Tighten jam nut through two sides of belt.
5. Replace belt shroud and tighten three nuts and four
screws.
ti15061a
ti15087a
ti15083a
(3VX375 Belt)
Model Series
270
A
390
A
480
A
630
A
New
Belt
Tension (Lbf) 130 +/- 5 174 +/- 6 204 +/- 7
Frequency (Hz) 83 +/- 2 96 +/- 2 104 +/- 2
Used
Belt
Tension (Lbf) 112 +/- 5 150 +/- 6 176 +/- 7
Frequency (Hz) 77 +/- 2 90 +/- 2 97 +/- 2
(3VX355 Belt)
Model Series
270
B, C, D
390
B, C, D
480
B, C, D
630
A
New
Belt
Tension (Lbf) 145 +/- 5 193 +/- 7 194 +/- 7 194 +/- 7
Frequency (Hz) 91 +/- 2 105 +/- 2 105 +/- 2 105 +/- 2
Used
Belt
Tension (Lbf) 125 +/- 5 167 +/- 7 167 +/- 7 167 +/- 7
Frequency (Hz) 85 +/- 2 98 +/- 2 98 +/- 2 98 +/- 2
ti15067a
ti15058a