Graco Lube Master, Instructions Manual

Page: 12 / 44

Setup
12 3A2781B
Clutch Drive - Calculating Pump Output (if equipped)
The standard pump output varies from 0.010 to 0.050 cubic in. (0.1639 to 0.8195 cu. cm) per cycle, by changing the
position of the pump adjustment nut (A) (F
IG
. 1, page 6), located below the pressure gauge (D) (F
IG
. 1, page 6).
Use the following formulas to calculate the pump output per hour:
Table 1: Minimum / Maximum Pump Output
Standard Pump Adjustment
Table 2: Standard Output/Stroke Adjustment
360°
= Effective Ratio
Degrees of Throw
* Degrees of Throw can be found by using clutch lever diagram (F
IG
. 7, page 11)
IMPULSES/HOUR
=
PUMP STROKE PER HOUR
RATIO
Pump strokes per hour x 0.010 = Minimum Pump Output per Hour
Pump strokes per hour x 0.050 = Maximum Pump Output per Hour
Degrees of
Throw Effective Ratio Impulses Per
Minute Output Per Hour
Pump Strokes Per
Hour Cubic Inches (Cubic Centimeters)/hour
Minimum Maximum
12 30:1 5 Minimum 10 0.100 (1.639) 0.500 (8.195)
60 6:1 150 Maximum 1500 15.00 (245.8) 75.00 (1229)
F
IG
. 8: Standard Pump Adjustment
Percent of
Output
Output Per Stroke Cubic
Inches (Cubic Centimeters)
Adjustment
Mark
100 0.050 (0.820) Max.
90 0.045 (0.737) *1st
80 0.040 (0.656) *2nd
70 0.035 (0.574) *3rd
60 0.030 (0.492) *4th
50 0.025 (0.410) *5th
40 0.020 (0.328) *6th
30 0.015 (0.246) *7th
20 0.010 (0.164) Min.
* All marks are counting clockwise from the maximum
setting.