Replacing the Cooler and Blower
1.Follow the Pressure Relief Procedure Warning on page 10. Let the hydraulic system cool before beginning the service procedure.
2.Remove the hydraulic pump as instructed in the previous section.
3.Disconnect the cooler to reservoir return hose (7.) by loosening the hose clamp (8). See Fig 8.
4.Remove the cooler capscrews (49) and lock- washers (66). See Fig 8.
5.Remove the fan guard (23). See Fig 8.
6.Pull the cooler (115) straight out.
7.Inspect the rubber pad (116) for wear and replace if necessary. See Fig 9.
8.Inspect the blower wheel (114) for wear. See Fig 8. If it needs to be replaced, follow Steps
a.Unscrew the setscrews (108) from the engine half of the coupler (109). Unscrew the blower setscrews (B). See Fig 9.
b.Remove the capscrews (112) and lockwashers (113) holding the pump support (117) to the engine and pull the support off. See Fig 8.
c.Pull the pump support and blower off far enough for the blower to fall out of the bottom of the housing.
d.Install a new blower. Secure the pump support (117) to the engine. See Fig 8.
e.Check Dimension A as shown in Fig 9 and tighten the coupler setscrews (108). Butt the blower hub up to the coupler half, keeping the blower in full contact with the coupler, and tighten the blower setscrews (B).
CAUTION
The correct coupling dimension is critical to avoid improper coupler engagement to the coupler spider which will damage the coupler and make the sprayer inoperable.
9.Install the cooler.
10.Fold the flaps of the pad (116) toward the cooler fins and install the fan guard (23), capscrews (49) and lockwashers (66). See Fig 8.
11.Reinstall the hydraulic pump and reconnect all hoses.
ENGINE
108
115
23
117
A
DIMENSION A
0.05 in. ± 0.010
(1.27 mm ± –0.254)
A
107
109
108
116
TOP VIEW
Fig 9
307616 15
