Graco 231-827 Instructions-Parts List Manual page 7

Setup
1/4 npsm(m) fluid outlet
33
Do not install any shutoff device here
64
Rotate clockwise to increase pressure
Shown in closed or spray position
E
Fill 1/3 full with TSL
74
52
32
102
67
Model 231–827 Shown
06973
Fig. 2