Gradall G6-42P (91404003_Before 0160004017) Operation Manual - Manual (Page 41)

Form No. 20027 • G6-42P Owner/Operator Manual
Lube No. of
Symbol Points
Daily or Shift (10 hour Maximum)
Lubrication & Maintenance
13. Engine Crankcase Dipstick (level handler and
check level - refill as required - item 14 is filler
cap EO 1
30. Fuel Filler Cap (fill at end of work shift to
minimize condensation) DF 1
31. Hydraulic Return filter Condition Indicator
(check indicator with oil at normal operating
temperature and engine running at full throttle -
replace filter element before by-pass indication
is reached or at least annually) - 1
34. Hydraulic Level Sight Gauge (level handler,
retract all other cylinders and check sight gauge
- refill as required) HF 1
35. Hydraulic Suction Filter (replace filter element
when return filter element is replaced - 1
41. Air Cleaner Element Condition Indicator (check
for clogged condition (red band showing) and
clean or replace element as required) - 1
Weekly (or 50 Hour)
Lubrication & Maintenance
(include all previous periodic services)
1. Extend/Retract Chain Sheaves HM 3
6. Boom Bottom, Front Slide Bearings (extend
boom fully and lube all wear paths - retract and
extend boom fully three times and wipe excess
lube from bearings) HM 4
7. Carriage Tilt Cylinder Pivots HM 2
8. Boom Hoist Cylinder Pivots HM 2
9. Compensating Cylinder Pivots HM 2
10. Boom Head/Carriage Pivot HM 2
11. Tires (check for damage and proper inflation)
1300 x 24, 12 ply - 70 psi - 4
12. Radiator Fill Cap (check level and refill as
required) - 1
17. Fuel Filter/Water Separator (with Drain)
(replace element) - 1
19. Quick Switch Latch HM 1
26. Leveling Cylinder Pivots HM 2
29. Battery (check terminals) - 1
36. Tie Rod Ends HM 2
37. Steering Cylinder Rod Pivots HM 2
38. Steering Cylinder Barrel Pivots HM 2
39. Boom Pivots HM 2
40. Front Axle Pivots HM 2
42. Rear Axle Pivots HM 2
43. King Pins HM 4
At End of First 100 Hours Only
15. Special engine breakin oil (drain & refill)
(replace filter)
EO 1
23. Planetary Drain Plugs (drain while draining
differential) HF 2
25. Differential Drain Plug (drain and refill) HF 1
At End of First 30 Days Only
(250 Hours Maximum)
Lubrication & Maintenance
• Check torque of all items listed in Torque Chart (pg 18.0)
16.1
DETAILED SERVICE INSTRUCTIONS ARE CONTAINED IN THE GRADALL SERVICE
MANUAL FOR YOUR PARTICULAR MATERIAL HANDLER
Lube No. of
Symbol Points
5 Week (or 250 Hour)
Lubrication & Maintenance
(include all previous periodic services)
2. Boom Front, Top and Side Slide Bearings
(extend boom fully and Lube all wear paths -
retract and extend boom fully three times and
wipe excess lube from bearings) HM 12
3. Boom Rear Slide Bearings (lube paths) HM 12
4. Boom Extend Chain (check adjustment and
adjust as required) - 2
6. Boom Front bottom Slide Bearings (to be
performed by experienced maintenance person
- check for damage and excessive wear - no
wear permitted past bevel - maximum clearance
at top bearings is 1/8 inch, shim or replace as
required; when these bearings require service,
check all other slide bearings - shims
are 1/16 inch thick) - 4
14. Engine Crankcase Filler Cap (drain oil and refill
top level) EO 1
15. Engine Oil Filter (replace filter element) - 1
18. Vacuator Valve (rubber cone on bottom - check
to be sure cone is clear and undamaged) - 1
20. Drive belts (check condition - replace as
required) - 1
22. Rear Hub Level Plug (check level and refill
as required) HF 2
24. Drive Axle Level plug (check level and refill
as required) HF 1
• Check torque of all items listed in Torque Chart (pg 18.0)
Quarterly (or 500 Hour)
Lubrication & Maintenance
(include all previous periodic services)
17. Fuel Filter/Water separator (with Drain)
(replace element) - 1
32. Hydraulic System (we recommend that
hydraulic fluid be analyzed to determine
condition - drain and refill reservoir if required) HF 1
33. Hydraulic Reservoir Screen (remove, clean
and install when hydraulic oil is drained) - 1
Semi-Annual (or 1000 Hour)
Lubrication & Maintenance
(include all previous periodic services)
5. Hydraulic Reservoir Breather Cap
(clean or replace) - 1
23. Rear Hub Drain Plug (drain and refill-item 22
is fill plug) HF 2
27. Differential and Planetary Drain Plugs (drain,
fill to level, wait 5 minutes and fill to level again
-item 24 is fill/level plug) HF 3
28. Front Axle Breather (clean or replace) - 1
Annual (or 1500 Hour)
Lubrication & Maintenance
(include all previous periodic services)
12. Engine Cooling System (drain, flush and refill
on basis of period suggested by anti-freeze
manufacturer and add Liquid Coolant Additive) CC/AF 1
31. Hydraulic Return Filter (replace filter element) - 1
32. Hydraulic system (unless fluid is analyzed
quarterly to determine degree of contamination,
reservoir must be drained and refilled on an
annual basis) HF 1
33. Hydraulic Reservoir Screen (remove, clean
and install when hydraulic oil is drained) - 1
35. Hydraulic Suction Filter (replace filter element) - 1
Service intervals are based on machine usage of 1500 hours
annually. Use of your unit may vary significantly and you must
adjust service frequency for your usage to obtain maximum
service life. Frequency headings in the following schedule
indicate a calender limit and an operating hour limit. Perform
service at whichever interval occurs first.
CAUTION !