Test The Gun After Service - Graco XHF A Series Instructions Manual

6. Push the fluid housing (R) onto the gun body (A)
until fully seated. Apply medium strength thread
locking compound to set screw (L). Tighten the set
screw to 60-75 in-lb (6.8-8.5 N•m). Fill the set screw
cavity with petroleum jelly.
NOTE: If rebuilding from a needle and set kit, discard
the old set screw and use the new set screw in the kit.
A
R
7. Position the trigger (T) on the gun body. Insert the
pivot pin (S) into the top hole (TH) and secure with
the screw (K) on the other side. Ensure there is an
e-clip (U) on one end of the trigger pin (W). Slide the
pin through lower trigger holes and through the slot
(PS) in the spring guide (M) -- turn the spring guide
to align, as needed. Install the other e-clip (U) onto
pin.
K
U
W
T
3A2799D
L
ti19272a
TH
PS, M
S
U
ti19271a
8. If it was removed, install the spring tension screw
(Q) at the rear of the gun. Then turn the screw in
until it stops.

Test the Gun After Service

1. Engage the gun trigger lock.
2. Connect a hose to the gun. Start and prime the
pump.
3. Disengage the gun trigger lock.
4. Trigger the gun into a waste container until fluid
dispenses.
5. Release the trigger to be sure the gun immediately
stops spraying and that there are no leaks in any
gun connections.
6. Engage the gun trigger lock.
7. Install the tip guard (H) before regular use. See Tip
Guard Installation and Removal, page 8.
H
Maintenance
Q
ti19281a
ti19264a
13