Graco 2730H - Manual (Page 15)

Pump Service: 2730B/2730H Model Pressure Washers
309286K 15
Servicing V-Packings
1. Remove manifold as described in Pumping Section,
page 14.
2. Carefully pull packing retainer from manifold. Exam-
ine o-ring. Replace o-ring if cut or damaged.
3. Remove V-packing and head ring. Pull out retainer
ring. Remove second V-packing and second head
ring.
4. Inspect all parts and replace as necessary.
5. Thoroughly clean packing cavities and inspect for
damage.
6. Lightly grease packing cavities. Replace packings in
the following order:
• head ring
• v-packing
• intermediate ring
• head ring
• v-packing
• packing retainer
• o-ring in retainer groove
7. Reassemble manifold following procedure
described in Servicing Plungers, page 14.
Uneven tightening could cause the manifold to bind
or jam.
Packings must be installed in the proper order and
facing the correct direction. Improperly installed
parts will cause the pump to malfunction.