Multiquip HPHA36C5H - Manual (Page 30)

PAGE 30 — HPHA36C5H WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10 )
Figure 38. Worn Spider Plate
Trowel Arm Adjustment Procedure
A flat and level , clean area to test the trowel prior to and after is
essential. Any unlevel spots in the floor or debris under the
trowel blades will give an incorrect perception of adjustment.
Ideally, a 5' x 5', three-quarter inch thick
flat steel plate should be
used for testing.
1. To determine which blades need adjustment, place the
trowel in the test area (three-quarter inch thick plate) and look
for the following conditions:
■ Pitch the blades as flat as possible and look at the
adjustment bolts . They should all barely make contact
with the lower wear plate on the spider. If you can see
that one of them is not making contact, some adjustment
will be necessary.
■ Is the machine wearing out blades unevenly (i.e. one
blade appears worn while the others look new)?
(Figure 38) below illustrates " worn spider bushings or bent
trowel arms ". Check to see that adjustment bolt is barely
touching (0.10" max. clearance) lower wear plate. All alignment
bolts should be spaced the same distance from the lower wear
plate.
(Figure 39) below illustrates the " correct alignment " for a spider
plate (as shipped from the factory).
Figure 39. Correct Spider Plate Alignment
At the front of the book (Page 7) there is a “ Daily Pre-Operation
Checklist ”. Make copies of this checklist and use it on a daily
basis.
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
1. Check the oil level in the engine crankcase and gear box,
fill as necessary.
2. Check V-belt.
Weekly (50-60 Hours)
1. Relube arms, thrust collar and clutch.
2. Replace blades if necessary.
3. Check and clean or replace the engine air filter as
necessary.
4. Replace engine oil and filter as necessary, see engine
manual.
Monthly (200-300 Hours)
1. Remove, clean, reinstall and relube the arms and thrust
collar. Adjust the blade arms.
2. Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
1. Check and replace if necessary the arm bushings, thrust
collar bushings and shaft seals.
2. Check pitch control cables for wear.
HPHA36C5H TROWEL — MAINTENANCE
ALWAYS allow the engine to cool before
servicing. NEVER attempt any maintenance
work on a
hot! engine.
NOTE
NOTE
See the engine manual supplied with
your machine for appropriate engine
maintenance schedule and
troubleshooting guide for problems.
The following procedure should be
followed to adjust trowel arms when
it becomes apparent that the trowel
is finishing poorly or in need of
routine maintenance.
CAUTION CAUTION CAUTION CAUTION CAUTION