Graco 313998S User Manual Page 27

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Repair
313998S 27
Remove HFR Hydraulic Driver
This procedure removes the HFR Hydraulic Driver so
replacement parts can be installed. See HFR Hydraulic
Driver manual for replacement parts installation proce-
dure.
1. Perform Remove Chemical Pumps procedure, see
page 24.
2. Disconnect the fluid manifold inlet lines. Do not dis-
connect the fluid line connections at the heater.
3. Remove pump support brackets. Each bracket is
secured with three screws at the base frame and
two screws at the manifold bracket.
4. See FIG. 4. Remove four nuts (188) securing
hydraulic driver to hydraulic power pack. This will
also loosen manifold plate (104) from hydraulic
driver. Remove manifold plate. Remove hydraulic
driver.
Install HFR Hydraulic Driver
This procedure installs the hydraulic driver after replace-
ment parts have been installed and actuator has been
reassembled. See HFR Hydraulic Driver manual for
replacement parts installation procedure.
1. Hang the hydraulic driver on the studs. Verify o-rings
between driver and hydraulic power pack are
installed and lubricated. Secure the driver with nuts
and washer at bottom-left and top-right corners.
2. Install manifold bracket. Secure at top-left and bot-
tom-right corners.
3. Install pump suppor t brackets, torque to 300 in-lb
(33.9 N•m). This will also install manifold plate (104)
to hydraulic driver.
4. Connect fluid manifold inlet lines.
5. Perform Install Chemical Pumps procedure, see
page 26.
FIG.4
155
104
156
124
125
155
188
156
112
111
180
24C352_313998_5g1
Fluid Manifold Inlet
24C352_313998_4e1
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