Graco GM 3000 Instructions Manual
Graco GM 3000 Instructions Manual

Graco GM 3000 Instructions Manual

Airless paint sprayers

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INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
GM 3000r
AIRLESS PAINT SPRAYERS
Drive Housing Replacement Kit 238691
Pinion Housing Replacement Kit 238684
Drive Housing, Connecting Rod, Crankshaft
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 8.
Removal
1. Relieve pressure.
2. Remove the displacement pump. See page 7.
3. Remove the pressure control (25). See page 3.
4. Remove the three drive housing screws and lock
washers (15, 16). See Fig. 1 on page 2.
5. Remove the two pinion housing screws (69) and
lock washers (16). See Fig. 1 on page 2.
6. Tap the lower rear of the drive housing (6) with a
plastic mallet to loosen the drive housing. Pull the
drive housing straight off the pinion housing.
CAUTION
Do not allow the gear (19) to fall; it may stay at-
tached to the drive housing or to the pinion housing.
Do not lose the thrust balls (6a and 2d) or let them
fall between the gears, which will damage the drive
housing if not removed. If the balls are not in place,
the bearings will wear prematurely.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
7. Remove and inspect the crankshaft (8) and the
Installation
8. Lubricate the inside of the drive housing bronze
9. Install the connecting rod.
10. Place the large washer (5) and then the small
11. Insert the crankshaft into the bearing in the drive
12. If replacing the complete drive housing assembly
13. Install gear (19).
14. Install new gasket (64).
15. Work backwards from step 5 to reassemble.
ECOPYRIGHT 1996, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
connecting rod (10).
bearing with SAE non-detergent oil.
washer (3) on the crankshaft (8).
housing (6) and connecting rod (10).
(6), brush bearing grease (supplied) on all gear
teeth. Then recoat the gear teeth with bearing
grease (supplied). Pack the remaining bearing
grease into the bottom part of the drive housing.
Use 3/4 tube of the grease. See Fig. 2.
308660
Rev. B

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Summary of Contents for Graco GM 3000

  • Page 1 If the balls are not in place, the bearings will wear prematurely. 15. Work backwards from step 5 to reassemble. GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 ECOPYRIGHT 1996, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
  • Page 2: Drive Housing, Connecting Rod, Crankshaft

    Drive Housing, Connecting Rod, Crankshaft REF A Torque to 100 in–lb (11 N.m) Quantity of three Quantity of one Lubricate with SAE non-detergent oil Fig. 1 05833A Brush and recoat with bearing grease Pack with bearing grease (3/4 tube) Fig. 2 06003 308660...
  • Page 3: Pressure Control

    Pressure Control 7. Loosely install the screws (24) and then torque WARNING them to 21 in–lb (2.4 N.m). INJECTION HAZARD 8. Install the front cover (9). Connect the harness (A) To reduce the risk of serious injury, to the control module leads (B). whenever you are instructed to relieve pressure, follow the Pressure Relief 9.
  • Page 4: Pinion, Clutch, Clamp, Field, & Engine

    Pinion, Clutch, Clamp, Field, & Engine If servicing clutch components only, see Manual 8. Reassemble to drive housing. 308620. CAUTION If no service is needed for internal parts of pinion housing, remove drive assembly (drive and pinion Do not lose the thrust ball (2d). Refer to the CAU- housing) from clutch housing.
  • Page 5: Pinion Housing

    Pinion Housing Lubricate inner and Detail A outer diameters Lubricate teeth Directional arrow on roller clutch must face the small bearing (2n) Lubricate exterior Back of pinion housing 1.53 Press fit small bearing (2n) and clutch roller (s) here Fig. 5 06005 Repairing the Pinion (Fig.
  • Page 6 Reassembly NOTE: With the autogap style armature, the gap be- Brace the cart against a wall to keep it from rolling. tween the rotor and the armature is critical for proper Push the drive/pinion assembly onto the clutch operation. The clutch kits with an autogap style arma- housing (1).
  • Page 7: Displacement Pump

    Displacement Pump NOTE: To minimize down time, and for the best sprayer WARNING performance, clean the transducer (22) whenever you repack the pump. Replace these parts as needed. INJECTION HAZARD To reduce the risk of serious injury, Removing the pump (See Fig.
  • Page 8: Pressure Relief

    3. Tighten the packing nut (102) just enough to stop (See Fig. 8 and 9.) leakage, but no tighter. Fill the packing nut/wet-cup 1/3 full with Graco TSL. Push the plug (123) into 1. Mount the pump on the drive housing. Tap it into the wet-cup.

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