Hydraulic Motor Replacement; Removal; Installation - Graco LineLazer IV 250SPS Repair Manual

Hydraulic Motor Replacement

Hydraulic Motor
Replacement
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury
from pressurized fluid, such as skin injection,
splashing fluid and moving parts, follow the Pressure
Relief Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.

Removal

1. Perform Pressure Relief Procedure, page 10.
2. Remove Paint Pump, page 19.
3. Disconnect fitting (108) above ball valve (109).
NOTE: Oil will spill out of hoses. Have rags and
waste pail nearby.
4. Disconnect hose (111) and fitting (193) from fitting
(196).
5. Disconnect pump counter (112) with 2 screws (113).
20
193
196
113
111
116
112
Use a screwdriver to lift pump piston up to gain
access to mounting bolts and avoid contact with pis-
ton. Contact with pump mounting bolts can scratch
and damage the pump piston.
6. Remove four mounting bolts (116) from hydraulic
motor and remove motor from sprayer.

Installation

1. Install hydraulic motor with four mounting bolts
(116).
Use a screwdriver to lift pump piston up to gain
access to mounting bolts and avoid contact with pis-
ton. Contact with pump mounting bolts can scratch
and damage the pump piston.
2. Install pump counter (112) with two screws (113).
3. Connect hose (111) and fitting (193) to fitting (196).
4. Connect fitting (108) above ball valve (109).
5. Install Paint Pump, page 19.
6. Purge hydraulic system, page 13.
108
109
110
ti19688a
NOTICE
NOTICE
3A2593C Repair