Knowledge Graph Equipment Maintenance

Equipment Maintenance & Care

Periodic lubrication, daily inspection and the full maintenance schedule for the XC8 / CP8M rotary PET blow moulding machine - keep your line stable and avoid unplanned downtime.
Updated on September 22, 2026 12 min read
  • 10lubrication points
  • 5daily checks
  • 72schedule items
  • 9inspection groups
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Equipment Maintenance & Care

Maintenance machinery timely will be helpful to the stability of machinery, avoid potential problem, auxiliary equipment refer to supplier requirements

Attention:

This characteris under normal environment situation.

Please short maintenance if the using condition is b a d .

Please maintenance machinery according machinery real situation.

Maintenance should be done by professional or trained person, familiar with china-beverage manul, equipped with relevant safety device.

Abide by machinery safety requirements when maintenance machinery.

Ensure all electrical parts dry, no acid or alkaline contact.

Maintenance usually goes with lubrication work.

please check after every maintenance:

All parts connect right and tight.

All adjustment finished.

All irrelevant parts are clean out of machinery, such as changed parts, mop, tool etc.

Clean machinery.

More information please ask china-beverage technician .

1. Equipment Lubrication

General rules for lubrication

Please check the quality of grease in the reducer during primary 2 months. If the grease has quality problem, please find out the reason and change the grease.

The grease indicated in the table should be standard grease in certain working environment and period.

If the environment is special, please consult china-beverage’s technician.

Period in the table means

1 week-150 working hours

1 month=500 working hours

3 months=1500 working hours

1 year=5000 working hours

3 years=15000 working hours

Wipe dirty things before greasing, wipe any excess grease off

Do not mix two different grease together unless get the permission from china-beverage’s

1.1 Heater Lubrication Points

1.1 Heater Lubrication Points
Figure 1 — 1.1 Heater Lubrication Points
1.1 Heater Lubrication Points
Figure 2 — 1.1 Heater Lubrication Points
No Lubrication Position Greasing way Oil type Lubrication period
1 Top guide rail in the oven single-point lubricator Mobil EP2 replace the lubricator every 6 months
2 Rotary supporting roller way for the oven oil gun, manual adding oil Mobil EP2 160 adding oil every 160 hours
3 Rotary supporting gear surface in the oven hairbrush,manual adding oil Mobil EP2 72 adding oil every 72 hours
4 Bearing base for transmission in the oven oil gun, manual adding oil Mobil EP2 500 adding oil every 500 hours
5 Inversed guide rail in the oven single-point lubricator Mobil EP2 replace the lubricator every 6 months
6 Little chain guide rail in the oven hairbrush,manual adding oil Mobil EP2 160 adding oil every 160 hours
7 Dedusting guide rail in the oven single-point lubricator Mobil EP2 replace the lubricator every 6 months
8 Rear drive plate in the oven oil gun, manual adding oil Mobil EP2 200 adding oil every 200 hours

1.2 Centralized Lubrication System

1.2 Centralized Lubrication System
Figure 3 — 1.2 Centralized Lubrication System
No. Position Lubricant Period Remarks
1 Centralized lubrication system Shell Alvania EP2 50 50hours

1.3 Mould Carrier Lubrication Points

No. Position Lubricant Period Remarks
A Middle bearing APEXFGL-2 1 1 week
B Arm bearing EP2 1 1 week
C Connecting bearing EP2 1 1 week
D pin bearing EP2 1 1 week
G Mold base rail EP2 1 1 week
H Area around the mold base APEXFGL-2 1 1 week
J 1Mold locking pin 1 APEXFGL-2 1 1 week
K 2Mold locking pin 2 APEXFGL-2 1 1 week
L Bearing APEXFGL-2 1 1 week
M Guiding bearing APEXFGL-2 1 1 week

1.4 Preform Infeed / Discharge Guide Lubrication

1.4 Preform Infeed / Discharge Guide Lubrication
Figure 4 — 1.4 Preform Infeed / Discharge Guide Lubrication
No. Position Lubricant Period Remarks
A Track EP2 48 48 hours
B Heat chain EP2 48 48 hours
C Track EP2 48 48 hours
D Track EP2 48 48 hours

1.5 Transmission System Lubrication

1.5 Transmission System Lubrication
Figure 5 — 1.5 Transmission System Lubrication
No. Position ( )Lubricant Period Remarks
A Reducer VG220 1 1year reference manual
B Main drive gear EP2 3 3 weeks
C Bearing EP2 3 3 weeks

1.6 Manipulator Lubrication

1.6 Manipulator Lubrication
Figure 6 — 1.6 Manipulator Lubrication
No. Position ( )Lubricant Period Remarks
1 Linear guide rail for mechanical arm Mobil EP2 140 adding oil every 140 hours oil gun, manual adding oil

1.7 Encoder Lubrication

1.7 Encoder Lubrication
Figure 7 — 1.7 Encoder Lubrication
No. Position ( )Lubricant Period Remarks
1 Gear surface on the coder Mobil EP2 200 adding oil every 200 hours hairbrush,manual adding oil

1.8 Mechanical Seal Guide Lubrication

1.8 Mechanical Seal Guide Lubrication
Figure 8 — 1.8 Mechanical Seal Guide Lubrication
No. Position Lubricant Period Remarks
A Mechanical seal guide EP2 24

1.9 Stretch Rail Lubrication

1.9 Stretch Rail Lubrication
Figure 9 — 1.9 Stretch Rail Lubrication
No. Position ( )Lubricant Period Remarks
A Stretch rail EP2 2 weeks

1.10 Left / Right Cam Lubrication

1.10 Left / Right Cam Lubrication
Figure 10 — 1.10 Left / Right Cam Lubrication
No. Position ( )Lubricant Period Remarks
A Preform infeed cam EP2 1 week
B Bottle discharge cam EP2 1 week

2. Daily Inspection and Cleaning

2.1 Open / Close Mould Arm Position

1) Raise (install) the swing-arm positioning guide. Inch the machine so the swing-arm bearing reaches the arc of the positioning guide; the bearing should pass tangent to the guide. If there is a deviation, loosen the screws of the swing-arm clamping collar, align the bearing tangent to the guide, then tighten the locking screws diagonally.

2) If the mould closing is abnormal or unsmooth during operation, leave a suitable clearance between the guide and the bearing, measure it with a feeler gauge, and keep a record.

2.1 Open / Close Mould Arm Position
Figure 11 — 2.1 Open / Close Mould Arm Position
2.1 Open / Close Mould Arm Position
Figure 12 — 2.1 Open / Close Mould Arm Position

2.2 Mould Flatness Check

1) Inch the machine and use a dial gauge to check the flatness of the mould neck plates; the deviation must be adjusted within 0.1 mm.

2) If the dial-gauge error is severe, loosen the three set screws on the adjusting nut at the lower end of the mould-carrier main shaft, and turn the adjusting sleeve on top of the nut with a wrench: clockwise lowers the mould carrier, counter-clockwise raises it.

2.2 Mould Flatness Check
Figure 13 — 2.2 Mould Flatness Check
2.2 Mould Flatness Check
Figure 14 — 2.2 Mould Flatness Check

2.3 Bottom Mould Bearing Flatness

1) With the mould locked, press the bottom mould to its lowest position and adjust the clearance between the limit screw and the mould carrier to 0.1 mm, so the bottom mould sits at the correct height in the mould slot.

2) Check the flatness of the bottom-mould bearing. If there is a deviation, add or remove shims between the bottom mould and its support bracket to make the bearings level.

2.3 Bottom Mould Bearing Flatness
Figure 15 — 2.3 Bottom Mould Bearing Flatness

2.4 Bottom Mould Guide & Bearing Clearance

1) Inch the machine so the bottom-mould bearing travels about 20-250 mm along the bottom-mould guide, then adjust the guide so the clearance between guide and bearing is 0.05-0.1 mm.

2) At the outlet end of the guide, the bearing-to-guide clearance must be >= 0.2 mm.

3) The bottom-mould guide has two fixed seats; adjust the screws and jacking screws on the guide seat to set the guide height.

2.4 Bottom Mould Guide & Bearing Clearance
Figure 16 — 2.4 Bottom Mould Guide & Bearing Clearance

2.5 Seal Head & Mould Top-face Clearance

1) When the bearing moves to the top plane of the guide, use a caliper to check the clearance between the seal head and the mould top face; it should normally be 24-25 mm.

2) If there is a deviation, adjust it by the screws that fix the mechanical seal guide.

3. Maintenance Schedule & Content

The following is the general maintenance content and schedule; operator must confirm and carry out the plan according to the actual running condition of machine.

Item No. Spare parts Standard Method Tool Every day Every week Every month
clean 1 Equipment surface No dust,no oil Clean Cloth √
2 Inner machine No dust,no oil,no debris Clean Cloth √
3 Mold Clean in mold and surface Clean Soft c loth, detergent or anhydrous alcohol √
4 Heating head No dust,no oil Clean Soft cloth, absolute ethyl alcohol √
5 Preform-in detecting electric eye No dust,no oil Clean Soft cloth √
6 Preform infrared heating head No dust,no oil Clean Soft cloth √
7 Infrared tube of heater No dust on the surface Clean Soft cloth √
8 Heater reflector No dust on the surface Clean Soft cloth √
9 Heater cooling fan filter No dust on the surface Clean Soft cloth, absolute ethyl alcohol √
10 Heater temperature detecting head No dust on the surface Clean Soft cloth √
11 Heater cooling tunnel No dust on the surface Clean Soft cloth √
12 Bottle-gripping preform gripper PET No PET debris on the surface, no oil,no dust Clean Soft cloth √
13 Stop system Stop sensitive Clean Soft cloth, absolute ethyl alcohol √
14 Distribution cabinet No dust Clean Soft cloth,compressed air √
15 40bar 40bar high pressure air filter No dust,no oil Clean Soft cloth, compressed air √
16 Cabinet conditioning No dust Clean Clean or blowing by compressed air √
17 Cooling water strainer Clean Clean Water cleaning √
lubrication(remove the old grease before and after filling)( ) 18 Heater top guide rail One layer of oil film, no dripping MobilEP2 Brush √
19 Heating machine loading, unloading rail One layer of oil film, no dripping 2# Uiversal 2 # Grease Brush √
20 Heater small chains and drive gear One layer of oil film, no dripping Mobil EP2 Brush √
21 -- Mandrel - Large chain guide One layer of oil film, no dripping Mobil EP2 Brush √
22 Mechanical arm linear bearings 1 / / 1 g / month / time Mobil EP0 Oil gun √
23 inner and outer rail of mechanical arm cam One layer of oil film, no dripping Mobil EP2 Centralized √
24 Stretching rail linear bearings 1 / / 1 g / month / time Mobil EP0 Oil gun √
25 Stretching pole rail One layer of oil film, no dripping Mobil EP2 Centralized √
26 Bottom mold linear bearings 1 / / 1 g / month / time Mobil EP0 Oil gun √
27 Bottom mold bottom rail One layer of oil film, no dripping Mobil EP2 Centralized √
28 Opening,locking mold rail One layer of oil film, no dripping Mobil EP2 Centralized √
29 Opening,closing mold rail One layer of oil film, no dripping Mobil EP2 Centralized √
30 Closing mold pin lock means One layer of oil film, no dripping Mobil EP0 Brush √
31 / Bottom mold slot/ mold positioning pin One layer of oil film, no dripping Food lubricating grease Brush √
32 / Mold spindle / swing arm shaft Extrusion of used oil Mobil EP2 Oil gun √
33 Slewing support Extrusion of used oil Mobil EP2 Centralized √
34 Slewing gear One layer of oil film, no dripping Mobil EP2 Brush √
35 Main drive gear bearing Extrusion of used oil Mobil EP2 Oil gun √
36 Encoder gear One layer of oil film, no dripping Mobil EP2 Brush √
37 oil distributor Rotating lubrication Mobil EP2 Oil gun √
spot-inspection 38 Air pressure control 6-7bar By eye Eye √
39 Pre-blowing air pressure 5-13bar By eye Eye √
40 High pressure for blowing 28-40bar By eye Eye √
41 Heater big chain gap 0.5 Gap not more than 0.5 By feeler Feeler √
42 Mechanical arm Horizontal By eye Eye √
43 Caping module No gas leakage,no loosing By listening and touching by hand Ear,hand √
44 Stretching pole locking device No loosing Touching by hand Hand √
45 Stretching pole up and down limit buffer Good buffer,no damage Touching by hand Hand √
46 Stretching down limit device No loosing By eye Eye √
47 Bottom up limit device No loosing 0.25-0.30mm By feeler Feeler √
48 The same height of molds 0.1mm By meter Dial indicator √
spot-inspection 49 The same bearing height of mold opening 0.1mm By meter Dial indicator √
50 Gap between stretching bearing and guide rail 0.2mm By meter Dial indicator √
51 The same bearing height of bottom mold 0.1mm By meter Dial indicator √
52 Alignment of mechanical arm and preform gripping table Centering Touching by hand hand √
53 Alignment of mechanical arm and mold Centering Touching by hand hand √
54 Gap between stretching pole and bottom mold Down stretching pole to bottom mold 1.5-2mm Based on thickness of the preform injecti point By feeler Feeler √
55 Gap detection of mold closing arm Bearing and tools 0.1-0.15mm By feeler Feeler √
56 Mold closing buffer Good buffer,no damage Touching by hand Hand √
57 Stop system 2-3 2-3 molds moving after stop By eye Eye √
58 Synchronous teethed belt Moderate tensioning,no wear By eye and touching by hand Eye,hand √
59 Preform-in detecting electric eye Clean,sensative By eye Eye √
60 Each proximity switches Clean,sensative By eye Eye √
61 Synchrous with the whole machine Synchrous, no misalignment By eye Eye √
62 Mechanical arm,stretching and bottom mold in a straight line Flexible action By eye Hand,eye √
63 Stretch,bottom mold,opening and unlocking mold guide rail No serious wear and tear, no loose By eye Hand,eye √
64 Heating layer No loose By wrench 13 19 13 19 Open-end wrench √
65 Mold closing swing screw No loose By wrench 6 6 Allen wrench √
66 Tensile slide rail mounting bolts No loose By wrench 5 5 Allen wrench √
67 Stretching pole locking device No loose By wrench 4 4 Allen wrench √
68 Mechanical arm gripping bolt No loose,flexible turning By wrench 5 5 Allen wrench √
69 Preform-unloading protective board bolts No loose By wrench 6 6 Allen wrench √
1 4-6 2 Note: Maintenance every day should be one hour, 4-6 hours per week, and two days per month. Not meeting the above requirements allows no starting the machine.

4. Inspection of Main Maintenance

4.1 Safety & Inspection Facilities

Working content: check whether it is dirty, damaged, working normally or not; clean, repair or change if necessary;

Inspecting standard: ensure the installation of all safety and inspection facility is right and working normally; there is no scratch or crackle on the reflecting glass of photoelectric cell.

4.2 Filter

Working content: check whether there is a leakage or not, the volume of chilling water; fasten, change parts and discharging chilling water if necessary;

Inspecting standard: cleanness of filter, liquid level of chilling water could be over the standard.

Remark: the job could be done before reducing the pressure of the system; each filter should be done like this (please do not forget to treat cabinet, compressed air).

4.3 Mould

Working content: clean mold and check air exit hole;

Inspecting standard: the mold is clean and air exit is smooth.

4.4 Infrared Lamp

Working content: check the lamps by eyeballing, change the broken lamp or those could not be used any more, adjust the distance if necessary;

Inspecting standard: the lamp is not broken, light of lamp is normal and the position of lamp meets the demand.

Remark: when check, the light of lamp could not be too high to avoid hurting the eye; adjust and change lamp after reducing the temperature and shutting down the power.

4.5 Water / Air / Oil Circuits

Working content: check whether there is a leakage and the bolt connection of pipe is stable or not;

Inspecting standard: there is no leakage.

4.6 Driving Components

Working content: check the tension of synchronous belt is suitable, worn out or not, check the surface of gear is worn out or not, relative position of wheel meets the demands or not, tension or change parts if necessary;

Inspecting standard: belt is not aging, mangling, broken, wearing in allowing range (synchronous belt must has correct direction), suitable tension; the wearing on the surface of gear is in the allowing range; the difference of height of driving wheel is less than 0.5% of axis distance, the angle misposition of driving wheel is less than 0.25° each meter of axis distance, the surface of gear is less than 1mm.

4.7 Slewing Bearing

Working content: check sealing ring is right, connecting bolt is stable and the lubrication is good or not, the wearing condition of gear;

Inspecting standard: sealing ring is right, connecting bolt is stable, lubrication is good and wear of gear is even and in the allowing range.

4.8 Reducer

Working content: check there is a leakage and the quality of lubrication grease is good or not, whether lubrication oil meets the demand. Reseal and add oil if necessary;

Inspecting standard: there is no leakage, oil level is normal and the quality of oil is good.

Remark: when there is more foreign material in the oil, please contact with professional company or engineers of china-beverage company.

4.9 Cooling Water

Working content: the quality of water;

Inspecting standard: refer to relative standard.

Remark: use clean container to take the sample and seal the sample.

3.10 Pneumatic Components

Working content: check each pneumatic element is working or not;

Inspecting standard: refer to relative standard.

5. Equipment Storage & Reuse

Please follow up the belw process if the equipment need long time stop.

Completely discharge the water, oil and air in the equipment;

Make anti-rust treatment for the parts may be rust;

Put it in a dry place for storage;

Lock main rotary bearing.

Please follow up the below process when reuse the equipment:

Clean the equipment;

Lubricate each requested lubrication points;

Adjust each parts of the equipment;

Dischagre the air in the oil and water pipes.

Need a maintenance plan for your own line?

Send us your machine model and daily running hours - our engineers will build the lubrication and inspection schedule for you.
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