Graco DELTA SPRAY XT GUN 310692D Instructions - Parts Manual page 23

Reassembling the gun
To ensure proper alignment of the parts, assemble
parts in the exact order given in the following steps.
1. Slide the insert (4) into the spray housing (2A), and
install them onto the gun body (1). Align the housing
with the slot and lip (A) on the gun body.
2A 4
F . 36
IG
2. Tighten the hex nut (9) onto the insert (4) hand-tight,
then loosen the nut about one turn so the insert (4)
and spray housing sit loosely in the gun body.
9
F . 37
IG
3. Check the fluid needle (13) for damage or excessive
wear. Replace needle tip or entire needle if neces-
310692D
A
ti4830a
ti4978a
sary. If replacing needle tip, use low strength thread
adhesive on needle tip threads.
4. Lubricate the outside of the new air valve assembly
(26) and place it on the fluid needle (13), against the
nut (B). See F . 38.
IG
5. Install the fluid needle (13) and the air valve assem-
bly (26) into the back of the gun.
F . 38
IG
6. With u-cup (20) and spacer (37) already installed
into fluid nut (19), point gun down and install spring
(22) and fluid nut (19). Tighten the fluid nut (19) to
125-135 in-lb (14-15 N•m).
23
F . 39
IG
7. Install needle spring (23). Install fluid adjustment
knob (21).
Service
13
26
B
ti4853a
21
22 37 20 19
ti4850a
23