PUMP SERVICE
| To reduce the |
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| Servicing the Plungers | ||||||||
| risk of | serious bodily | injury, | NOTE Plunger repair kit, | |||||||||
| including fluid injection, splashingthe eyes or replace retainers, |
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| on the skin, or injury from moving parts, always backup rings for three cylinders. |
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| follow the Pressure ReliefProcedureWarnlng |
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| before proceeding. |
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| 1 . | Loosen the plunger retaining screwtofivesix tums, | ||||||||
NOTE | The following metricwrenches are needed: |
| usinganMlOwrench.Push theplungertowards the | ||||||||||
| crankcase to separate the plunger and retaining | ||||||||||||
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| M10, M13 and M30. Repairkits are available. |
| screw. |
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| Referto the individual repair sectionsandthe | 2. | Remove the screw fromihe plunger and examine | |||||||||
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| pagefor more details. For thebest | ||||||||||
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| pump parts |
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| the | |||||||
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| results, useall parts in the kits. |
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| washer. Replace these parts,ifnecessary, usingkit | |||||||||
NOTE: There are | Wo different tool kits to aid in |
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| servicing the pump. | 3. Remove the plunger and flinger from the plunger | ||||||||||
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| ease installation of packings. P/N |
| shaft. Clean, examine | and replace parts as | ||||||||
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| includes | the |
| necessary. |
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| in the removalof packing retainers. | 4. Inspect the plunger shaft foroil leakage from the | ||||||||||
Valves |
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| crankcase. If leaking is | obvious, replace | theoil | ||||||
NOTE: For a set of six valves, order |
| seals. Otherwise,DO NOT remove these sealsas | |||||||||||
| they cannotbe reused.An oil | seal | kitis availableto | ||||||||||
1. |
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| replace | the seals. |
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Remove the hex plug | fromthe manifoldusing an | 5. | Lightly | grease theoil seal, if | it is | being replaced, | |||||||
2. | M30 wrench. |
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| and the flinger and replace them on the plunger | |||||||
Examine the |
| shaft. Theninstall the plunger. |
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| it if it is cut or distorted. |
| 6. Lightly grease the retaining screw and the outer end | ||||||||||
3. Remove the valve assembly from the cavity; the |
| oiihephger. Place the | |||||||||||
| ring around the screw and install the screw through | ||||||||||||
| assembly may come apart. |
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| the plunger. Torqueto |
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4. |
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NOTE: Retorque the plug after 5 hours of | operation. | 7. Lubricate. the outside of each plunger. Slide the | |||||||||||
Pumping Section |
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| manifold onto the crankcase, being careful tonot | |||||||||
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| damage the seals. |
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1. Remove the eight capscrews and lockwashers from |
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8. Install the capscrews and washers | |||||||||||||
| the manifold using anM13 wrench. |
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| Carefully separate the manifold from the crankcase. |
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2. | tightening pattern (Figure4). Uneven tightening | ||||||||||||
NOTE: | It maybenecessaryto tap themanifold lightly |
| may cause the manifoldto bind or jam. |
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| with asoft mallet to loosen. |
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| CAUTION |
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Keep the manifold properly aligned with the ceramic plungers when removing to avoid damage to the plungeror seals.
3.Carefully examine each plunger for any scoring or cracking and replace as necessary.
Figure 4
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