Graco Endura-Flo 4D150, Instructions - Parts Manual

Page: 20 / 42

Repair/Service
4. Grease both ends of the piston (102) and install
it in the housing (101), with the flat side toward
the cup. Be careful not to tear u-cups (108) when
sliding piston into housing.
5. Standard Models: Grease new o-rings (106) and
install on the end caps (107). Install the end caps
into the housing.
DataTrak Models: Orient the air valve so the air
inlet faces forward. Grease and install new o-ring
(106) on right-side end cap (107). Grease and
install new o-ring (106) and the solenoid release
button (118) and o-ring (119) on the left-side end
cap (117). Install the end caps into the housing.
6. Install a retaining ring (110) on each end to hold
caps in place.
7. Grease and install the detent assembly (103) into
the piston.
8. 4D150 Models: Install the spring (111). Grease
the side of the air valve cup (112) that will contact
the valve plate (105) Install the air valve cup
(112). Align the small round magnet (B) with the
air inlet.
4D350 Models: Install the o-ring (113) on the
cup (112). Apply a light film of grease to the
outside surface of the o-ring and the inside
mating surface of the base (114). Orient the end
of the base that has a magnet toward the end of
the cup that has the larger cutout. Engage the
opposite end of the parts. Leave the end with
the magnet free. Tilt the base toward the cup
and fully engage the parts, using care so that the
o-ring remains in place. Install the spring (111)
onto the protrusion on the cup. align the magnet
in the base with the air inlet and install the cup
assembly.
9. Grease the cup side, and install the valve plate
(105). Align the small hole (A) in the plate with
the air inlet. Tighten the screws (109) to hold it
in place.
DataTrak
NOTE: See DataTrak manual, 313840, for all
DataTrak service, repair and operation information.
Replace DataTrak Battery or Fuse
To reduce the risk of fire and explosion, the battery
and fuse must be replaced in a non-hazardous
location. Follow all instructions in the DataTrak
manual 313840.
Use only an approved replacement battery, and
an approved fuse (see DataTrak manual). Use of
an unapproved battery or fuse will void Graco’s
warranty and Ex approvals.
20 333015E