Drive Housing
Drive Housing
Removal
WARNING
Read Injection Hazard, page 3; Burn Hazard, page 4
1.Relieve pressure; page 5.
2.Remove bearing housing. Refer to Bearing Housing and Connecting Rod, Removal, page 8.
CAUTION
Premium models: Gallon counter sensor is connected to con- trol board in pressure control. Pulling on the sensor wires could cause damage.
3.Premium sprayers: Remove two screws (108) and gallon counter sensor (39).
CAUTION
Thrust washers may stick to grease inside of drive housing. Do not lose or misplace.
CAUTION
DO NOT use drive housing screws (38) to align or seat drive housing with pinion housing. Align these parts with locating pins, to avoid premature bearing wear.
8.Install screws (38) in drive housing. Torque evenly to note 3 value in FIG. 2.
9.Install pump. Refer to Displacement Pump, Installation, page14.
"
TIA
A
B
1
"
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4.Remove six screws (38).
5.Lightly tap around drive housing (33) to loosen drive housing. Pull drive housing straight off pinion housing. Be prepared to support combination gear (32) which may also come out.
Installation
1. FIG. 2. Apply all grease supplied with replacement gear | |
| cluster to gear teeth and to areas called out by note 3. |
2. | FIG. 3. Ensure thrust washers (30, 31; 5900/7900) (30, 31, |
| 72; 3900) are on combination gear (32) and washers (Fig. |
| 2; 33a, 33b) are on crankshaft of drive housing (33) as |
| shown. |
3. | Clean mating surfaces of pinion and drive housings. |
4. | Align gears and push new drive housing straight onto |
| pinion housing (29) and locating pins (B). |
1GMAX II 3900: Torque to 140 ±10
GMAX II 5900: Torque to 200 ±10
GMAX II 7900: Torque to 200 ±10
Texspray 7900HD: Torque to 200 ±10
2Gallon counter sensor
3Pack with grease 114819
FIG. 2
5. | Install six screws (38). |
6. | Install gallon counter sensor (39) with two screws (108). |
1 Copper
2 Steel
7. Install bearing housing. Refer to Bearing Housing and |
Connecting Rod, Installation, page 8. |
| TIA |
FIG. 3
310893L | 9 |
